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Questions tagged [rough-idle]

Questions about troubleshooting and solving rough idle problems

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Low idle after adding gasoline

This has happened twice now. My 2000 toyota sienna runs fine until I went to add gasoline. Upon startup, my idle was immediately much lower. I can rev throttle and it sounds smoothly until I release ...
Miguel's user avatar
  • 11
1 vote
1 answer
28k views

Engine revs up when in park

I have a 2001 Saturn SC2, and occasionally when I put it in park after driving, it will rev up at a steady pace and just keep raising up the rpm, it does not stop unless I either put it back in drive (...
Noah Clark's user avatar
3 votes
2 answers
3k views

Low idle while on Drive - Lexus LS430

Today I noticed something annoying on my 01 UL LS430, The RPM rate drops to around 500 when I set the transmission to "D" along with a slight vibration and strangely. If i change that to P, N. or even ...
Mohamed Hussien's user avatar
5 votes
1 answer
9k views

Idle speed is wrong after replacing battery (2006 Camry)

I have a 2006 Toyota Camry. I replaced the battery the other day which I noticed was getting weak. The battery was disconnected all of 10 minutes. After, it idles too low. It shudders pretty bad and ...
Paul's user avatar
  • 153
0 votes
2 answers
1k views

My Toyota corolla 2008 Rough idle.

My Toyota corolla 2008 is idling rough when I on AC, but when the car is moving everything becomes fine. I just replaced a clean intake manifold. What could be the problem? Any idea plz.
Odekina 's user avatar
1 vote
0 answers
185 views

rpm's drop when stopped

2000 SOHC automatic ford focus...new plugs wires coil pack oxygen sensor...IAC cleaned throttle sprayed with cleaner and seafoam used.....EGR checked. Car runs perfect except when I stop at lights (...
Kat Dean's user avatar
2 votes
3 answers
3k views

Brand New 2018 Hyundai Sonata with rough idle

I have a brand spanking new 2018 Hyundai Sonata that as soon as I drove it off the lot I noticed it idles rough. Not horribly, but very noticeable. Not only do the RPM's drop a little but you can ...
Post Impatica's user avatar
3 votes
1 answer
134 views

High Idle in Tata Manza, occasionaly

I have noticed that the diesel car idles high (1400-1600 RMP) in Idle. This is occasional and some times the engine check light comes on and goes off. scanned the system, but was not able to find ...
RM85's user avatar
  • 31
4 votes
1 answer
507 views

98 Mazda 626 GF 2L ATX zero ignition timing at idle?

My 1998 Mazda 626 GF 2L ATX has zero ignition timing at idle when fully warmed up causing a rough idle condition. I've replaced the faulty O2 sensor with no effect on the retarded timing and replaced ...
Justin D's user avatar
1 vote
1 answer
428 views

Suzuki Baleno station wagon, year 2000, camshaft sensor error, difficult idle with warm engine

Here is my problem When driving for a while in city traffic (stopping/accelerating a lot), check engine light turns on and the car starts to lose RPM at idle and wants to stall. It also wants to ...
Pythzepf's user avatar
0 votes
1 answer
9k views

sudden extreme rough idle, no codes but several recent issues

I've suddenly had issues with my car, a 97 Maxima, over the last week. No issues at all before these events. First, last thursday a coil went bad which produced #2 cylinder misfire and ignition ...
user avatar
2 votes
1 answer
71 views

'92 Lumina needs throttle input to stay running

My 1992 Chevy Lumina 3.1 starts very rough; you have to press on the throttle to start it and it sputters - almost dies - in gear. I put a new fuel pump in a couple months ago and today I put a new ...
Jared Beverly's user avatar
3 votes
0 answers
186 views

2011 Chevy Impala was inactive with dead battery for 3 months! I have tons of problems now! Help!

In late December 2017, I discovered my 2011 Impala wouldn’t start. My boyfriend and I jumped it with our other vehicle and it worked. We disconnected the cables and left it running for a while. We ...
Shelby Lynn Baker's user avatar
5 votes
1 answer
469 views

Revving Hyundai Elantra GT

I have a 2001 Hyundai Elantra GT. As of late when I start it up it idles rough for a few seconds, then revs up to 4000RPM and back down to 1000RPM. This continues until the ignition is switched off. ...
Knarf66's user avatar
  • 51
2 votes
1 answer
1k views

Squealing and uneven idle, then tachometer drops to zero but engine keeps running

When I start my car, a belt seems to slip and then the tachometer reads zero RPM but the engine keeps running, but has weak power and only runs at low RPM. Any idea what's going on? The Symptoms: ...
askewchan's user avatar
  • 121
4 votes
2 answers
12k views

Noisy Power Steering Pump on a Cold Start

I've occasionally noticed that on a cold start the power steering pump will be a bit noisy. I've only noticed it a few times over the past few years, but yesterday I was under the hood right after ...
Robert S. Barnes's user avatar
1 vote
2 answers
8k views

Suzuki Swift Bad Idle

I am having trouble with my Suzuki swift`s bad idle 2009 (Engine M13A - Transmission Manual ). The original problem was when i left the clutch in first gear to start from a stand still the rpm ...
Iftekhar Ahmed's user avatar
2 votes
1 answer
3k views

2010 Nissan Sentra - Idling rough in reverse, occasionally stalls when stopping

Been having an issue with my 2010 Sentra where the idle in reverse is very rough and has very little power. As well when making abrupt stops in drive the car will occasionally stall, but start back ...
Crawdingle's user avatar
4 votes
2 answers
4k views

VW Jetta 2008 starting problem - idle problem

I have a VW Jetta 1.4tsi 122 (2008) and it has a strange behavior. First of all, a have noticed that it doesn’t keep the same rpm when runs on idle. For example, when I stop at the first traffic ...
Mike T's user avatar
  • 73
5 votes
2 answers
2k views

Does this harmonic balancer / crankshaft pulley look damaged?

Does this harmonic balancer / crankshaft pulley look damaged? To me it looks like the rubber between the inner and outer parts is at least cracked if not completely separated.
Robert S. Barnes's user avatar
0 votes
2 answers
2k views

Bike's rpm increases after short ride

My bike's rpm increases after a short ride of 5 kms such that it moves forward even if the throttle is in its resting state. I know there is a throttle movement adjusting nut but not sure should I ...
DhKo's user avatar
  • 1,155
8 votes
1 answer
3k views

Rough idle only under load

I'm going to describe the symptoms with a very short history, some preliminary theories ( based on past work I've done on this car ), the data I've gathered and what, if any, conclusions I might draw ...
Robert S. Barnes's user avatar
2 votes
0 answers
203 views

How stable should the camshaft frequency be?

I just got my first oscilloscope ( Hantek 1008C ) and I was looking at the camshaft signal on my 98 Mazda 626 GF 2L. It uses a two wire sensor. There is a single bump on the face of the camshaft ...
Robert S. Barnes's user avatar
1 vote
1 answer
228 views

Honda dirt bike with clone engine lots of problems

So I have a 110cc Honda trail. It has been getting colder where I live and my bike has been acting funny. first problem: At FULL throttle it starts to sputter and crackle. The second problem: does ...
aidan zollner's user avatar
1 vote
1 answer
1k views

Intermittent low idling 2007 Civic

First time posting. Got an intermittent low and rough idle on my 2007 Honda Civic LX. Will generally only idle low and rough for a stop light or 2 then things will relatively go back to normal. I've ...
b.stevens.photo's user avatar
1 vote
0 answers
843 views

honda crv 98 idle too low and rough and eventual stall but ok when driving

(Excuse my english) My dad gave me a '98 honda crv. since it came from being serviced after an oil pump failure, it has no power when it's cold I have to press the gas until the engine warms up. I ...
Francisco Javier Car Rosario's user avatar
4 votes
2 answers
12k views

Should the EGR be activated at idle?

My 98 Mazda 626 2L ATX has a fully electronic EGR valve controlled by the ECU. I've been trying to figure out a rough idle problem for a long time, which gets worse when the engine is under load, ...
Robert S. Barnes's user avatar
2 votes
1 answer
1k views

Is a +/- 10-15 rpm idle fluctuation normal?

98 Honda civic ex I'm curious if during idle, it's normal for the rpms to fluctuate 10-15 rpms +/- or if it's supposed to always be steady constantly? My OEM tach doesn't pick up this slight change ...
user140123's user avatar
2 votes
0 answers
239 views

2005 Saturn Ion running rough after running for 30 minutes

My 2005 Saturn Ion starts and runs great for about 30 minutes or so, then it starts running rough like the mixture is too rich. I have to let it sit for an hour or two and then it cranks and runs ...
james dossey's user avatar
1 vote
1 answer
7k views

Rough Idle Only When in Drive with AC On

I have a 2010 Ford Escape and for a few years I've noticed that when the AC is on, the car idles very rough when in drive. If it's in park or neutral and the AC is running it's as smooth as silk. ...
j08691's user avatar
  • 111
2 votes
0 answers
54 views

2002 Nissan Quest breaking down

I was given the vehicle after it had sat for over 7 months. It sat with 3/4-1/2 a tank of gas. It was not cranked once. It is now idling and running very rough. It doesn't want to accelerate and when ...
Hannah C.'s user avatar
2 votes
1 answer
1k views

Rough Idle & Stall While Stopped

Make: BMW Model: 535 IS Automatic Year: 1988 Miles: 230K I have a very similar problem to (Automatic: revs dropping then stalling when stopped at lights) The car is fine in just about every ...
Sarah Szabo's user avatar
2 votes
1 answer
20k views

Black water from exhaust, cylinder misfire and rought idle

It is a Skoda Fabia 2006, petrol, 3cylinders 1.2L. Main problem: Rough idle. Misfire at random cylindners. Steam, Water and black carbon from exhaust. (I'm sure it is not normal). Undrivable. ...
Aus's user avatar
  • 276
1 vote
0 answers
112 views

Jeep Grand Cherokee 1996 limited model - lack of power while sudden accelerating

Hi I have Jeep Grand Cherokee 1996 limited model - the problem is engine misfire in idle while cold starting and engine stady (not fully stady) after become hot, and lack of power while we accelerat ...
karansinh's user avatar
2 votes
0 answers
535 views

Subaru Legacy 91 idle issues

Video going over issues: http://webm.land/media/8vlo.webm Started having issues a while ago with some fairly extreme shaking and surging while at idle (including cold starts). To try and resolve this ...
vrct's user avatar
  • 83
2 votes
0 answers
289 views

1973 F100 360 FE 5.9L Stalls when put in gear

I've got a 73 F100 with a 360 FE and a C6 transmission. It idles fine but stalls when put in gear, with somewhat of a jump. New holley carb on it. Any idea why? I've also notice the idle speed going ...
Krimo's user avatar
  • 121
2 votes
0 answers
2k views

Sudden Random Misfire and Stalling RX300

Preface: This is my sister's car, so I was not there at the moments leading up to it misfiring and stalling, but I'm the one who gets to fix it. It's a '99 Lexus RX300, and about a month ago I ...
Lathejockey81's user avatar
2 votes
1 answer
8k views

Toyota Vitz rough idle

I have a 2005 Toyota Vitz with a 1KR-FE engine. When idling, there is a rough idle from time to time when the car is in Park, Neutral or when stopping in traffic, with vibrations shaking the car. The ...
Madhana's user avatar
  • 21
9 votes
2 answers
785 views

Solstice! Car starts to run rough after hitting the gas, intermittently.

So, after putting the A/C-delete belt on to take my POS A/C compressor out of play, everything works great: No frightening rattle / clanging from the engine bay Idles smooth Sounds like a brand new ...
3Dave's user avatar
  • 3,159
4 votes
3 answers
4k views

2005 Mazda 3 2.3L rough idle

My 2005 Mazda 3, 128,300 miles and manual transmission, has been running well for quite a while but a couple of weeks ago it started idling rough/low once warmed up and even stalled a few times when I ...
sixstring's user avatar
  • 101
6 votes
1 answer
2k views

Do I have a fuel pressure or injector problem Part 2

This is a continuation of my previous fuel pressure / injector question. So the missing part for my fuel pressure gauge came in and I was able to do a few more tests. The first thing I think is that ...
Robert S. Barnes's user avatar
2 votes
1 answer
15k views

Engine running rough and a "Service StabiliTrak" message after vehicle has been sitting, why?

My 2013 Camaro 2LS has been sitting in my garage without being driven daily for about a month now, maybe longer. I have only driven it in my driveway to move things around in my garage. The last time ...
William's user avatar
  • 651
2 votes
1 answer
1k views

Mazda 3 really bad idle related to fuel pump

My Mazda 3 has suddenly been having rough idle issues. I have noticed that since yesterday, when my car is in idle it revs from the idle rpm(not sure if its 700-850rpm) to 1000 rpm then back again ...
marchemike's user avatar
3 votes
0 answers
2k views

What could be making my truck skip?

I have a 2006 Chevy Silverado 1500. It's been skipping for several weeks now but not really throwing a code. I've changed the fuel pump and spark plugs but still skipped. Then I came out one day and ...
Jacob's user avatar
  • 31
5 votes
1 answer
5k views

Car engine vibrates vigorously with air conditioning on at idle speed

My Toyota e80 sedan 4 doors having problem when the idling speed was set at 900 rpm. The engine will vibrates when air conditioning turns on and the engine rpm drops to 700 rpm. I need to depress the ...
Mel Lim's user avatar
  • 101
8 votes
3 answers
17k views

Astra MK6 - when warm, rough idle and shudders while accelerating

Here's a video: https://youtu.be/wYyaW9wRt6U For a couple of months now my car has had a rough idle and shudders while accelerating - Vauxhall Astra J Exclusiv MK6, 4 years old 61k miles spark plugs ...
codaamok's user avatar
  • 181
7 votes
2 answers
4k views

Rough idle problems on 93 Miata

The engine idles fine when cold then drops to about 800 and I have no problems at all except maybe inconsistent idle (goes up and down but not by much) although when I turn off the engine and then ...
method's user avatar
  • 2,770
1 vote
0 answers
166 views

Rpm falls below idle when declutching at high rpm

I've got this problem that I can't find the cause of. When starting the engine, which goes very easily, it idles smoothly and stable, rising the rpm a bit still gives no problems. But when driving at ...
Bart's user avatar
  • 2,954
2 votes
1 answer
2k views

Car engine stutters when hot, and sometimes stalls

My car (Suzuki Swift 1999, engine G10A 1.0) stutters and jerks when hot, after driving for like 10 to 15 minutes the problem arise. The strange thing is that when this happens and i turn off the ...
rr_1993's user avatar
  • 41
5 votes
2 answers
2k views

ford focus 2002 low idle problem varying

I have a ford focus 2002. It has an idle problem. At a stop the idle will vary from normal down to about 500 RPM, almost stalling. It does this variation very cyclically, every 5 seconds or so. ...
user1631495's user avatar