Rough idle until Engine warms
Rough idle on WARM start - Ford Focus ST Forum
Occaisionally when warm - the car will start, RPMs will drop like it is going to stall and then come back up. Sometimes that will be the end ...
Car has a rough idle after it gets warmed up - LS1Tech.com
now if you REALLY REALLY think it is rougher than "normal" then you can check around at things like spark plugs (what kind and how many miles do ...
Rough Idle when Engine is Warm | Boating Forum
When temp gets around 130F the engine idle reduces and the engine will stall. Engine will start immediately back up and idle around 530-550 and is rough.
Extreme rough idle/chugging on cold start, clears as thermostat opens
So it sounds like when the engine is below a certain temperature threshold, it doesn't run right. Now I know that upon cold starts, the ECU ...
rough idle and stalling until warm. - LS1LT1 Forum
rough idle and stalling until warm. ... Check your temp sensor in the water pump. Make sure the air is completely bled out of the system too. If ...
Rough cold start idle, misfire codes, but runs fine warm
I found a cracked PCV hose and replaced it. On the first start after replacing the cracked hose, the idle problem started. But, I fixed the WOT ...
Rough idle when warmed up - Bringing the Pontiac Hobby Together
You're running too lean. The problem may be below the carb, like an intake manifold leak. You can check it by spraying brake cleaner/carb cleaner all around ...
Roughish running engine once warmed up - TR Forums - Techreport
Next I looked at the EGR valve which on this car doesn't open until the engine warms up. Supposedly it only opens a little during idle and up to ...
rough idle when cold, then idles fine when warm..
It idles rough (surging from 400 - 700 rpm) when cold, and sometimes dies, but more often then not it stays running. It runs and drives fine when the ...
Cold rough idle, misfires until warm - DodgeForum.com
It was a bad pre-cat o2 sensor, for me. Put in a new one and the idle issues cleared right up. While I was trolling around here for some answers ...
Rough Idle and Stall When Cold - 2CarPros
Normally a rough idle when cold is due to an air fuel imbalance. So that means we have a fuel pressure issue that gets better when the engine ...
Engine idling rough during warm up? | RAM 1500 Diesel Forum
I'm having an issue with a rough idle... it doesn't do it when engine is cold or at operating temperature. I seem to notice it most from 135 degree f. to 160 ...
Q&A: Troubleshooting Rough Idle on Cold Start | JustAnswer
Car has rough idle at cold start. becomes better when it warms up ... engine warms up 1 vacuum leak path that you won't find with the ...
Easy start, rough idle until warm?!?! - R3VLimited Forums
ok, whats happening is the ecu cannot tell what temperature the engine is at so it results to a default value, running when warm. You will run ...
Audi 5000 // Rough idle when cold, smooths out when warm.
Mounts are in good condition. When the engine warms up to normal temps the car runs fine. Spark plugs, rotor/cap, wires, fuel injectors, ...
Rough idle when cold engine | DodgeTalk Forum
My engine hesitated a few seconds before fast idling until it warmed up a bit. These vehicles don't take kindly to low voltage. It might be ...
Rough Idle/Engine Hesitation when engine hot | EricTheCarGuy
What happens is, when your engine is running lean (too much air) it's also running hotter than normal. Too lean = too hot. That issue gets ...
Cold start = rough idle until warm up - ZCar Forum
Is your idle speed up during the cold warm up cycle compared to when the engine is warm? When you first start the car it should go up to 1200 to ...
Rough start in idle after vehicle is warm - GMC Acadia Forum
You mentioned would ECM "be bad when getting hot". Was it very hot weather where the coolant may have boiled over from the engine or coolant ...
Rough Idle After Warm Up, After Water sucked Into Engine
Sounds like at some point you turned on the car with the intake sensors all disconnected. I'd suggest resetting everything and see what comes ...