Rough Idle Sluggish Acceleration


I think it may be ignition, timing, or carburetor related. Also noticing an engine/oil/exhaust smell when stopped. I'm new to vehicle maintenance and I don't know where to start. ) timing chain jumped a tooth during shut-down. 2011+ Engine Related Questions - EcoBoost Rough Idle Fixed! - Have a 2011 Ecoboost with 11k on it. We began troubleshooting, starting with the double relay and ECU. My 3gm recently developed a rough idle/slow speed. Anyway, since I've had the truck it has gotten 14mpg which I figured was ok due to the lift/tires. Every time i start it with the new MAF the idle jumps up and down then after a few seconds its normal. xdf 16168625, 16196395 and 16197427 PCM with $31 Mask. Acceleration is sluggish, pushing on the pedal gives no immediate response. ) 8 Engine runs rough/rolling idle The engine speed fluctuates between the specified idle speed and lower speed and the engine shakes excessively. Either condition may be severe enough to stall the engine. I have a 2002 dodge caravan sport with the 3. Slow acceleration with slow rpm increase. Rough/Slow Acceleration. 0L which idles high and the response on acceleration is rough and seem to be missing power. I had my dad help me put it back on and the next day i started having random misfires in cylinder 4, the wire that i was working on. I think I made a mistake. Feels like the engine is bogged down. I can drive about 25 miles to Lubbock, but I need to stop after half a mile, park it, then I can continue on the rest of the way just fine. Idle is smooth, but very poor and jerky acceleration, especially between 2 and 3k on the tach. driving earlier today and i tried to speed up to pass a car and i lost acceleration power. my truck does something similar. i can stop at a stop light, get shaken around by the rough idle, light turns green, and i tap the gas and all is well, no stutter, no lag. Then when you hook it up, turn the key on for 5-10 seconds before cranking. 3 TBI Vortec Auto I just picked up. Hi, I have a 86 5. ) 9 Fast idle/runs on The engine speed. Page 1 of 2 1 2 Next >. The car idle is rough. It doesn't matter if it's hot or cold. Seems to only be idle reading off. At cold start is sounds/feels normal. A/F cruise set for 14. Average repair cost is $320 at 108,500 miles. it's rough at idle, but seems like a loss of some power, a little shaky on accelerationtruck ran good all morning, parked it for an hour, and i noticed the difference as soon as i started it and put into drive, NO check engine light coming on, I have a obdII scan tool, but don't think it will work with the diesel. Carburetors are not much of a topic for a discussion in the SMALL BOAT ELECTRICAL area. RE: Rough @ Idle but strong on acceleration all the ALDA dose is lean out the fuel mix at idle to prevent smoke when you floor it out of a light! If you set it rich it puffs some smoke at take off but doesn't add more power on the top end just a bit before boost hits!. You may have to register before you can post: click the register link above to proceed. I just noticed in the morning that the car would idle at 1100 RPM and start to rev a little bit before finally dropping down to. A rough idle should be inspected and repaired as quickly as possible. 1Li rough idle and stalls when you accelerate you replaced wires plugs and a faulty coil still has rough idle but better than before and still stalls on acceleration also. This seem to remedy the rough idleREALLY? Yep, so far no more rough idle when the car is hot and stopped. Under heavy acceleration the truck runs great. As a side note, when the rough idle starts in I also notice that acceleration is not as smooth as it was previously. Page 1 of 2 1 2 Next >. The car was running better, especially at higher speeds, but still stalls and rough low idle. A rough idle on a Nissan Altima can indicate that you need to change your spark plugs or you need to check your distributor cap. After I release the clutch, I press the accelerator, the rpms go up, but I would not speed up. If he tries to drive it, it will run fine and then the erratic idle starts. Vibration when the transmission is loaded but not moving (car in drive, brake on) I performed a Seafoam treatment through the PCV tube at that time. 8 v6 cause these issues along with stalling at light and when shifting into gear. I don't know if I'm being overly sensitive, but it just doesn't feel. There is no smoke at idle or as engine reaches cruising speed. If you are getting rough idle, you probably either have a bad spark plug or coil pack, when you replace these, make sure you buy dielectric grease and grease the boots really well on the COP's. The car has sluggish acceleration. I’m concerned that when I’m accelerating on the highway, it’s sluggish. I agree - I highly doubt your acceleration problem is from a gummed up throttle body. Since then, every now and then, when you came to a complete stop, it would be real sluggish getting going again. 2005 Chrysler Sebring - Rough Idle / Slow Acceleration - Answered by a verified Chrysler Mechanic We use cookies to give you the best possible experience on our website. Hi there, Im new on here. If I pressed the accelerator when stopped the engine revs would climb normally but when they returned to idle it would still be rough. I recently puchased a 2007 9-5 2. Idling a little rough. So, a rough idle can be caused by 2 things. It's accelerating slow. Also can not get over 30MPH or so unless I accelerate extremely slow. If you tighten the screw, the idle rate will speed up (it will push the slide back opening the neck of the carb) if you loosen the screw the idle rate will slow down (it will let the slide close off the neck of the carb). now the idle is rough and the entire truck shakes and feels horrible, but put it into drive and tap the gas and it moves perfectly normal. I've had idle issues with my MSP for quite some time. The problem seemed to begin when cold weather teems at night, 20s in the day) hit for a few days. I checked the spark from the wires with a tester and it's slow, inconsistent and orange not blue. Thank you!. high idle/ rough sluggish response on acceleration 5. Top 10 Causes of a Rough Idle | JL Motorworks. When a Ford Focus exhibits problems with running roughly at idle speeds, auto mechanics generally look first to either a vacuum problem, or more often, a problem with water getting into the Differential Pressure Feedback Sensor (DPFE), a part of the EGR (exhaust gas recirculation system). Hi, I have a 86 5. 2004 f150 rough idle installed new plugs, and ethenal free high octane gas , also tried fuel injector cleaner. At any RPM other than idle it also sounds and feels normal. 1986 D21 Rough Idle, Dies w/out Acceleration. Engine has 350 hrs. The second is that acceleration appears to be poor, at least poorer than normal. No SES light as of now. Jump to Latest Follow 1 - 7 of 7 Posts Rough idle while in gear, and hard to start after filling up are other symptoms. Most of these conditions can make the vehicle dangerous to drive. So if I give her gas right away it boggs let off for a few seconds and takes of slow into a normal acceleration. He had it serviced up there and they steam cleaned the engine, a few weeks later he drove down to Victoria and noticed higher fuel consumption along with missing. Its idle drops to barely 500 RPM and it vibrates very rough. Idle is rough like it's missing. I went out to lunch last week and no problem then left the parking lot and the car hesitated a little, check engine light blinked then went solid and from there on the engine vibrated really bad on low RPM and acceleration and has a rough idle. some of these new cars are. I just acquired a 1985 Mercedes 300TD It's been sitting around a while, neglected. Re: 2005 Yamaha F150 Idle and Acceleration Issues it eggzacary why the slow accel between about 700 and about 1200 RPM results in a stall. Runs real nice at highway speed. 1st is the. About the only thing I have not done is a valve adjustment but I can't see them being that bad to cause this. 0 Discussion in 'Engine & Drivetrain' started by Hydrospec2001, Aug 7, 2018. It's accelerating slow. Jamie LaPage arrived at Jon's shop with a rough idle and poor performance for a 390 High Performance V-8. We have a 2006 Dodge Charger. I am not getting any CEL and there are no codes in stored. But it didn't solve the problem. Next is that the air filter in the truck was TOAST! Completely annahilated with dirt, debris, bugs, etc That is taken care of. It doesn't then I can continue to drive normally. You start the engine cold and it will hardly run. I think I made a mistake. Hey guys, I'm new to jeepforum, but thought I'd give it a shot. The other night it was having problems starting then I drove it home and pretty much lost all acceleration and had to go 35mph with spurts of it "returning to normal". The car's acceleration under heavy throttle began to suffer and it no longer responded smoothly. Surge and hesitation at slow acceleration Our 2017 Explorer 3. If I pressed the accelerator when stopped the engine revs would climb normally but when they returned to idle it would still be rough. Most often an input sensor has failed or the throttle body has a problem. At cold start is sounds/feels normal. This hesitation has constantly gotten worse. It has approximately 60,000 miles. The only thing I did not check is the exhaust system so that will be one of the items to. 3) Engine running too lean because of vacuum leak or dirty jet. By the way, when I say hesitation - when I press the gas pedal the car shakes and runs really rough and as soon as I take my foot off, the roughness stops. Also can not get over 30MPH or so unless I accelerate extremely slow. For example, I would be driving on the highway and would switch gears from 3rd to 4th. The other thing worthy of mentioning is that this is an intermittant problem but the majority of the time its sluggish at low end acceleration and then seems to "connect" and go quite well. I did a full tune up. my 06 F150 did it out of the box, its also how I figgured out how to correct it years before Yamaha did. tested fuel pressure - steady at 55 at idle, goes up a little with initial pedal, steady then at 55 again, drops with release of pedal, then steady at 55 5. Those of you experiencing the rough idle should have this looked at!. I am noticing engine shake at the time of engine start and stop (Switch off). With a warm engine, loosen the distributor slightly, rev. The engine vacuum will vary depending on the vehicle you are working with. The main thing is that fuel\air mixture is above normal and your main target is to find out is that air or fuel. 93V8S10 0. I've changed out the fuel pump, catalytic converter, O2 sensors, TPS, swapped out he MAF with another, spark plugs wires and coil and can't seem to find a solution at all. On later model vehicles, a check engine light may accompany the issue. Rough idle and acceleration - Ford F150 Forum Fordf150. Action before Askin'). You may have to register before you can post: click the register link above to proceed. Most common cause of trouble codes related to the IAT are a bad connection, or a sensor left disconnected after servicing the air filter. Some hesitation on acceleration. The 2005 Ford Escape has 6 problems reported for rough idle and hesitation on acceleration. - Car ran fine, I had it idle for 15 minutes or so while the low temp paint was burning off - Made it a block and upon accelerating the car dies - Backfires up through carb - Have to manually open up butterfly to keep it running, even so it backfires upon "acceleration" and wants to die. xdf 16168625, 16196395 and 16197427 PCM with $31 Mask. A rough idle on a Nissan Altima can indicate that you need to change your spark plugs or you need to check your distributor cap. RPMs briefly drop down to below 700 3: Acceleration lags. They can usually be cleaned and reinstalled. Idle is smooth and no more surge. The weather isn't so cold any more, but the problem is still there. This is ONLY a problem at idle except for slow acceleration when the check engine blinks. 301 Moved Permanently. 7 Slow return to idle The engine takes more time than normal to return to idle speed. My 59 TR3 runs fairly smooth at idle. Average repair cost is $1,370 at 142,150 miles. Re: Rough idle, slow acceleration and high fuel consumption Post by alexperkins » Sun Jan 31, 2016 10:33 am Another thing to check is the vacuum hose that comes out the back of the throttle body that goes to the brake servo. ) timing chain jumped a tooth during shut-down. I don't know if I'm being overly sensitive, but it just doesn't feel. My only problem is a rough idle when i pull up to a stop sign /light. I have a 1998 Cherokee Sport, 4L 6 Cylinder engine. Usually slow acceleration means the engine has low compression. My car is idling very rough. A/F cruise set for 14. After work it still had trouble keeping idle and was still sluggish in the lower gears, but was. try to remove idle sensor and put your finger in the hole with engine on, if idle would come back to normal, then your idle sensor is bad. OK 100miles down and still a rough idle. It's accelerating slow. He had it serviced up there and they steam cleaned the engine, a few weeks later he drove down to Victoria and noticed higher fuel consumption along with missing. 5 hours searching the forums, and I can't seem to find anyone who's having the same problem. Firstly I am not a qualified mechanic, but not afraid to get stuck in. 3 TBI Vortec Auto I just picked up. RPM fluctuate from 615 to 300 and back within 2 second. It has always had a slight oil leak, but now its worse. Re: High Idle/possible run away acceleration something is odd if it is doing 2000 rpm in neutral but accelerates up to 70 mph in gear. But we were not! The result was that the Volume Control Screw was turned out way too far, and the idle was about 1200 rpm with the Bypass Screw turned in all the way! This caused a serious stumble on acceleration. need help with f150: sluggish acceleration. A rough idle should be inspected and repaired as quickly as. Archived Scooter Repair Questions Issues with Running Slow, Bogging Down or Running Rough. I recently got my car back a 2003 tibby GT 6 speed manual and I have an idea where to start but just trying to get a second point of view as to what I. Honda Prelude with rough idle and sluggish acceleration was created by Bendaa Hello all, I'm fairly new to forums so I'll try not to come off too clueless. Trending posts and videos related to Diesel Power Gear!. A misfire will cause the engine to momentarily stumble, or lose rpms, and then regain its normal engine speed. My 99 STS recently starting having a rough idle and sluggish acceleration. The problem started with sluggish acceleration then broadened to really bad acceleration from a dead stop and even feeling sluggish at highway speeds. Not as bad but still present. it started to hesitate during acceleration and then bog down. I expect if you are doing a lot of short journeys and/or with a fair bit of heavy acceleration, that would p. Sometimes they get gummed up with carbon deposits. 18-019-01 98. This problem only happens once in a while and then all of a sudden it will be normal. I also have the cylinder 3 misfire, according to the computer, but no codes. Quote; Post by. My car is idling very rough. After disconnecting the battery your ECM loses its' idle point. We began troubleshooting, starting with the double relay and ECU. When the engine is started cold, the engine temperature sensor sends a signal to the DME control unit to provide a richer mixture. I have a 2002 dodge caravan sport with the 3. Please take time to weigh in on this issue as I am out of easy answers. Than my transmission ECU failed and I had to replace it but after. A rough idling car is more of an inconvenience at first but if the problem is not solved it can quickly lead to bigger problems such as slow acceleration, stalling and eventually a vehicle that will not start at all. Next is that the air filter in the truck was TOAST! Completely annahilated with dirt, debris, bugs, etc That is taken care of. The reason for this is there's an increase in friction between the pistons, rings, and bearings. RPM fluctuate from 615 to 300 and back within 2 second. The second issue is when I push the gas pedal down, there is a delay/hesitation in acceleration immediately, and then it's ok. The main thing is that fuel\air mixture is above normal and your main target is to find out is that air or fuel. Rough Idle, Check Engine Light Ok I know there are other threads on this problem but nobody seems to come back with the final solution for their vehicle so I am asking for help with mine. Not bad, but noticeable. When it does the car will start having a really rough idle when stopped. You can have very bad COP Ignition Coils without a Mil. This happens at idle or in gear. It almost felt like the car was in a high gear. I replaced all the lines and it seems to be responding better to the accelerator, but now it has developed a rough idle. Re: Rough idle and poor acceleration when hot Post by Spags » 06 Jun 2010, 20:37 Did plugs today, idle seems better, acceleration is still becoming sluggish when car is running hot. So it's not a sustained idle, it's more of a swell and then it backs off - but noticeable enough to me as I can feel it in the steering wheel (and post here). If it is bouncing around or going up and down slightly as the engine is idling, then you could have a mechanical issue or even an air or a vacuum leak like we talked about earlier. The extra drag from the belt should be compensated by an idle adjustment motor, or idle solenoid. ) 9 Fast idle/runs on The engine speed. It doesn't matter if it's hot or cold. 1989 Pontiac grand prix 3. If your ignition is okay, it should idle worse each time. It doesn't then I can continue to drive normally. before the low, rough idle, extremely slow acceleration, problems occured. This topic contains 0 replies, has 1 voice, and was last updated by ace1093 1 year ago. Rough Idle / Slow Acceleration. Just recently that same rough idle if not worst is back. When at idle, it is a rough idle. I make no guarantee as to the accuracy of this definition or any definition created by or modified by me. the action from a force can cause an object to move or speed up, to slow down, to stop, or to change direction. I can drive about 25 miles to Lubbock, but I need to stop after half a mile, park it, then I can continue on the rest of the way just fine. Action before Askin'). It has a rough idle, check engine light, occasionally the check engine light will blink (while blinking it seems as though there is no kick down acceleration and if I put my foot down on the pedal it accelerates slowly). P0014 Indicates a problem with the cam phasing system, specifically how much the CPAS advances or retards the exhaust camshaft. Happy thanksgiving eve everyone. 33inch tires and a level lift. Re: High Idle/possible run away acceleration something is odd if it is doing 2000 rpm in neutral but accelerates up to 70 mph in gear. 8l is having a rough idle and slow acceleration I changed the engine oil, spark plugs, and alternator within the past couple months the codes that are being put off are p0301 cylinder 1 misfire. it started to hesitate during acceleration and then bog down. 7, and it does register that on handheld, 3/4 Throttle up hill with load A/F does not change from cruise setting. If this is your first visit, be sure to check out the FAQ by clicking the link above. Discuss 1990 TBI 5. When a Ford Focus exhibits problems with running roughly at idle speeds, auto mechanics generally look first to either a vacuum problem, or more often, a problem with water getting into the Differential Pressure Feedback Sensor (DPFE), a part of the EGR (exhaust gas recirculation system). 9L V6 engine. Idle Set Screw - This screw sets how fast your engine idles. Good shape minus some (what I thought to be) easy fixes for a moderately car-savvy person such as myself. my question is will a combination of a toque converter out of a v6 700r4 stall be too low (1000-1100) a oem alternator from 3. The truck had a edge EZ installed when I got it, first thing I did was unplug it when the problem started. I have an idle problem that I've been trying to locate for a few weeks now and have spent way too much money. So if I give her gas right away it boggs let off for a few seconds and takes of slow into a normal acceleration. I also just did a full tune up, new bosch platinum plugs, wires & cap & rotor. 7, and sometimes it idles real rough? and it doesn't like accelerate up to 20, but after that, it doesn't have a problem. found nothing idles fine cold, runs smooth, once warm engine stumbles and has rough idle. Also noticing an engine/oil/exhaust smell when stopped. I am the 2nd owner of this vehicle and have had it since 2004 when it had 74,xxx miles on it. A/F cruise set for 14. I have been searching this site trying to find answers for the problems my car seems to be experiencing. slow acceleration and rough idle after head and timing chain job Just did heads on my 2000 disco 2 and also did my timing chain and gaskets. This evening, on the way home from my parents house i stopped to get gas. D15b2 Rough Idle and Studdering on Acceleration When Warmed Up If this is your first visit, be sure to check out the FAQ by clicking the link above. However I've been having some issues with it recently, It seems to have a bit of a rough idle, a surge in the acceleration although it seems to run fine if you hammer down on the throttle a bit it's just during normal acceleration that it does it. It has a rough idle and is very slow to accelerate. There is a service bulletin from toyota about the module in the distributor not handling the high heat from the exhaust and causing the cut-out problem, and I think they upgraded the electrics in the distributor in 1993. 3) Engine running too lean because of vacuum leak or dirty jet. So it's not a sustained idle, it's more of a swell and then it backs off - but noticeable enough to me as I can feel it in the steering wheel (and post here). 4 extremely slow acceleration rough idle - Pontiac G6 Forum. Engine stalls / hesitations at idle and low acceleration (so lots of slow which cause the symptoms of the car idling rough, surging, hesitating at. 1989 Pontiac grand prix 3. 33inch tires and a level lift. Its basically a similar unit to the unit used to keep the idle steady and fits bellow the idle one. when it first happened my fuel milage went down to 10. try to remove idle sensor and put your finger in the hole with engine on, if idle would come back to normal, then your idle sensor is bad. OK 100miles down and still a rough idle. It sounds like things are fine in open loop, and when the car gets into closed loop you are having issues. Re: 2005 Yamaha F150 Idle and Acceleration Issues it eggzacary why the slow accel between about 700 and about 1200 RPM results in a stall. Rough vibrations coming from the engine while idling, especially when the AC is on. So, a rough idle can be caused by 2 things. He made some adjustments, not sure what, but it does not do it any longer. Turn the airscrew slowly in, and then out, until you find the point where the idle is fastest. The idle circuits in a GL1000 are ridiculously small, so slight problems are greatly magnified. either of those would cause the engine to run lean erraticly. ) timing chain jumped a tooth during shut-down. Engine stalls / hesitations at idle and low acceleration (so lots of slow which cause the symptoms of the car idling rough, surging, hesitating at. 9 TiD 150 Rough Idle/Uneven Performance A couple of weeks back, mine also seemed to be having a little bit of rough idling and the occasional flat spot which I put down to my recent town driving and not giving the car a good blow out. rough @ idle and acceleration after Throttle body cleaning! Discussion in ' Gen 2 Prius Care, Maintenance and Troubleshooting ' started by bshef , Sep 3, 2013. The problem ocurrs when the engine is cold or hot. He wasn't sure if it was the gasket or the intake pipe itself so he wants to replace both. My brother has a BA falcon in Darwin. 2002 Forester that surges/hesitates/jolts with a rough/low/oscillating idle By peterh , October 19, 2005 in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX Recommended Posts. I've been reading through the factory service manual, and theres more information in there on how to diagnose a squeaking serpentine belt than an issue like this. Also noticing an engine/oil/exhaust smell when stopped. Things were looking up: I replaced the spark plug, cleaned out the exhaust, adjusted the idle / fuel screws, and even replaced the brakes (I can stop now!). When a Ford Focus exhibits problems with running roughly at idle speeds, auto mechanics generally look first to either a vacuum problem, or more often, a problem with water getting into the Differential Pressure Feedback Sensor (DPFE), a part of the EGR (exhaust gas recirculation system). Over time it can become clogged, resulting in a rough idle, sputtering, stalling, and slow acceleration, as the engine is unable to get enough fuel. A rough idle should be inspected and repaired as quickly as. Idle is smooth and no more surge. It almost seems like a mass air flow sensor. 0L which idles high and the response on acceleration is rough and seem to be missing power. Not bad, but noticeable. This usually happens when I'm sitting at a stop light or when the car is in park. This just cropped up this morning while leaving for work - the idle is very rough and sits about 500 rpm with the AC off. a loose air filter box could be it too. When at a complete stop, if I push the pedal all the way down, it backfires. Slow acceleration with slow rpm increase. chevy forum at Car Dealer Forums; Truck runs great, but recently when the engine comes off the enriching circuit. When the idle speed drops during automatic gear selection and/or a steering load is applied, or C. Thanks Tom F K4KMG aboard 'Hearts Desire'. Pressing the gas pedal further gets it out of this lull, as will waiting for a 1/2 second with the gas pedal in the same position. When it does the car will start having a really rough idle when stopped. Mine's doing the same thing. I had all of the symptoms above in the title and it was caused by a broken PCV line. In gear it drops down to like 400RPM and the idle of course gets very rough. another thing is, that they may have cracked the hose between the manifold, and the throttle body. It has always had a slight oil leak, but now its worse. Some smoke at acceleration from idle but none accelerating at higher rpms. It's not enough to say it's a miss but it's noticeable even from out side the truck. Rough Idle/Sputtering Acceleration 06-23-2011 11:20 AM #1 Of late, my '09 2. Volvo 940 Turbo - Loud, Sluggish Acceleration and Rough Idle Hi All, After digging though the archive here and swedespeed, general google searching, and and banging my head against the hood of my wagon I'm reaching out to you all for help. also started idling rough. Damage to the car's carburetor and vacuum hoses can cause the engine to misfire, resulting in a rough idle. It doesn't then I can continue to drive normally. Upon acceleration it doesn't feel sluggish, but seems like it is pushing harder and very rough. I replaced the new O2 sensor and it is running almost perfect. Stop and the idle was rough. A/F cruise set for 14. My 99 STS recently starting having a rough idle and sluggish acceleration. driving earlier today and i tried to speed up to pass a car and i lost acceleration power. another thing is, that they may have cracked the hose between the manifold, and the throttle body. also started idling rough. Use at your own risk! If you break your vehicle, fail emissions testing, or etc…, the fault is yours and no one else's. Re: Rough idle and acceleration. 240SX Throttle Position Sensor replaced - (S14) - Rough idle and sluggish acceleration fixed The car was idling rough and accelerating sluggishly with poor throttle response. 2005 Chrysler Sebring - Rough Idle / Slow Acceleration - Answered by a verified Chrysler Mechanic We use cookies to give you the best possible experience on our website. pulled my chip out which made no difference. Hesitation, stalling, stumbling, flatspot, or deadspot during acceleration: Backfiring or spitback through carb. - Car ran fine, I had it idle for 15 minutes or so while the low temp paint was burning off - Made it a block and upon accelerating the car dies - Backfires up through carb - Have to manually open up butterfly to keep it running, even so it backfires upon "acceleration" and wants to die. The car then refused to start. For about a year and a half I have an issue with jerky acceleration at lower speeds. It looks like it's about half a turn for about 500 rpm. It only happens randomly. so i ended up buying new wires and i guess by some freak accident my crankshaft position sensor went out at the same time so i ended up buying a new distributor for a wopping 260 bucks with a lifetime warranty. On later model vehicles, a check engine light may accompany the issue. Anyway, since I've had the truck it has gotten 14mpg which I figured was ok due to the lift/tires. When backing off the accelerator it smooths out even at high rpm There is an accelerator position "sweet spot" where it runs rough then smooth then rough then smooth. my 06 F150 did it out of the box, its also how I figgured out how to correct it years before Yamaha did. It also idles weirdly. ) 9 Fast idle/runs on The engine speed. 0 Discussion in 'Engine & Drivetrain' started by Hydrospec2001, Aug 7, 2018. You may also notice odd sounds, as well as inconsistent RPM counts. They can usually be cleaned and reinstalled. Unfortunately the parts won't be in til tomorrow so we went home MINI-less. Upon turn and acceleration, car spits, sputters, jerks, jolts and would not accel properly. 7, and it does register that on handheld, 3/4 Throttle up hill with load A/F does not change from cruise setting. Page 1 of 2 1 2 Next >. When in neutral if I give it gas it will not go high on the rpm gauge and it - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. The second issue is when I push the gas pedal down, there is a delay/hesitation in acceleration immediately, and then it's ok. He made some adjustments, not sure what, but it does not do it any longer. especially if the car is SLOW have the computer scanned. Next is that the air filter in the truck was TOAST! Completely annahilated with dirt, debris, bugs, etc That is taken care of. Upon acceleration from a stop, there is a slight hesitation but once it's over that it runs flawlessly until it needs to idle at a stop again. The acceleration feels kinda sluggish and its been getting really crappy gas mileage (~10). rough @ idle and acceleration after Throttle body cleaning! Discussion in ' Gen 2 Prius Care, Maintenance and Troubleshooting ' started by bshef , Sep 3, 2013. Take 5-liter Mustangs. In practical terms, the position of the distributor which yields the highest idle speed is within a very few degrees of where it should be set. If this is your first visit, be sure to check out the FAQ by clicking the link above. Everything has to be on-spec for proper performance. The 2002 Mercury Sable has 3 problems reported for rough idle and acceleration, check engine light on. she has 114K of highway miles on her. The problem seemed to begin when cold weather teems at night, 20s in the day) hit for a few days. Slowly reduce the speed and as the engine tends to run a little rough, open the idle needle screw just enough to make it run smoothly. Have to admit if I just jab the right pedal down hard it will pick up a move but I should not have to do this all the time. It doesn't matter if it's hot or cold. The reason for this is there's an increase in friction between the pistons, rings, and bearings. drive it, while you look at data. MechanicAdvice ) submitted 5 years ago * by Moregunsthanpatience. I don’t know if I’m being overly sensitive, but it just doesn’t feel.