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Rough cold start idle


2017 - Rough Idle on Cold Start? | Subaru Forester Owners Forum

My '17 XT with 85k miles has been experiencing a rough idle on startup. It's noticable but seems to go away once the RPMs kick down to normal idle.

Rough idle when cold start. - Fifth Generation Legacy (2010 - 2014 )

The rough idle is so minor and only lasts for about 10 seconds before she's idling perfectly. I'm suspecting a slight vacuum leak when it's cold.

question about rough idle on cold start...

When it starts from cold the rpms shoot up to about 1500 and slowly drop down back to 600 or so. Its about the 1100-1400 range where the rough idle is there.

Rough idle when the engine is cold only | EricTheCarGuy

A few other things to look into are the following: TPS (Throttle Position) Sensor, EGR Valve malfunctioning, a bad PVC valve, M.A.P. Sensor, ...

Extreme rough idle/chugging on cold start, clears as thermostat opens

On cold mornings it can idle rough and chug so bad it literally rocks the truck, for about 10 minutes, until the temp gauge reads near 200°, then it smooths ...

Rough idle cold start - Lincoln Forums

Rough idle can be due to air/fuel mixture incorrect. Or burning bad fuel. Or an ignition system issue. When cold it is generally a lean mixture ...

Rough cold start idle, misfire codes, but runs fine warm

When cold starting, it wants to stall for about 10-20 seconds, then will rev up and everything is fine. When warm starting, it's like nothing ever happened.

help resolve rough idle during cold starts - BMW M5 Forum

This only happens when outside temps are below 22ish deg. C /75deg. F. The colder it is the rougher it runs during startup, and longer it takes to stabalize.

Rough idle on cold start with shaking / surging

The shaking happens on a cold start, when in R or D but not P or N. I can clear it by revving the engine or just letting it warm up.

Rough idle cold | Alfa Romeo Giulia Forum

49K Miles = have you ever cleaned your MAF Sensor with MAF Sensor cleaner? Probably needs a little freshening up. Remove it, give it a couple of ...

Rough idle at cold start...HELP! - Mustang Evolution Forum

When I cold start the car in the morning, for about 20-30 seconds it sounds like it might be misfiring or something of that nature until the engine warms up ...

Rough Idle on Cold Start Only | VW Vortex - Volkswagen Forum

You really should diagnose the issue before firing the parts cannon at it. If it's throwing an intake throttle code, that's probably your answer ...

rough idle at cold start | Acura MDX SUV Forums

In short, make sure your plugs are new, and then focus on your MAP Sensor to see if the O-ring is ok and the port is not clogged, plus make sure ...

Rough idle on cold start | Page 4 - Club Touareg Forum

The engine does a self diagnostic and valve train adjustment at every cold start. It takes about 45 seconds to perform and then the idle smooths out to normal.

rough low idle on cold start for 10 seconds - Lotus Talk

It is related to the fuel pump not priming fuel correctly before cranking the engine on a cold start.

Occasional rough idle on cold start. - Ford Taurus Forum

I start it some times and for about 15-20 seconds it will idle rough and then run smooth the rest of the day. Idles in park or drive at around 675 rpm.

Rough idle on cold start. - F150 Ecoboost Forum

A rough idle can be caused by (CAC) charge air cooler leaks. Also check that crankcase oil is not overfilled as a rough idle can result. Also ...

Rough cold start idle - Chrysler 200 Forum

Rough cold start idle ... This service may be covered under your Extended Federal Emissions (8/80) warranty. Leave the code in memory for the ...

Rough Idle for 5-10 seconds after cold start (80+ degrees outside)

Im having an issue with the spec v having a really rough idle at cold starts. But it only does it temporarily and then smooths out. I have tried cleaning out ...

Rough idle on cold start - BMW M3 and BMW M4 Forum - Bimmerpost

When I start the car on a cold engine, it will struggle to idle and dip down and be very rough for about 20-30 seconds then even out and be fine.