Rough idle only in cold weather? Please help

Rough idle only in cold weather | Toyota Nation Forum

Generally, old / borderline worn Spark Plugs with too much of a gap, a dirty Air Filter restricting airflow, air leaks in the Intake Plenum from the air box.

Rough idle in only cold weather. - GenVibe - GenVibe

Most likely you have a vacuum leak. The intake manifold gasket is suspect. It gets drenched from oil that comes in through the crank case ventilation system ...

Rough idle cold weather : r/FocusST - Reddit

After hitting operating temp and stopping at red lights I noticed my car has a slightly rough idle. Even when it was 30-40 degrees it never felt ...

Rough idle at engine start for 1 or 2 minutes, then runs fine all day ...

Based on my limited experience, common reasons for rough idle when cold include: Vacuum leak at intake manifold that closes when metal warms up.

What causes rough idling in cold weather for cars? Is it a misfire? Is ...

Rough IdleIf the car starts when cold but, idles rough or does not want to stay running, this can indicate a problem with the engine temperature ...

Rough idle only in cold weather? Please help | Chevy Tahoe Forum

Full Access Member ... Intake gasket...mine went bad when my motor was stock. Sounded like it was cammed.. the cold weather makes the gasket hard ...

My Car Has a Rough Idle When Cold: 6 Possible Causes - HubPages

The engine coolant temperature (ECT) sensor · The intake air temperature (IAT) sensor · The cold-start injector · The ignition coil(s) · Internal ...

3 Things to Check if You Have a Cold Start Rough Idle - YouTube

Welcome! Here are the parts I used in this video: Delphi MAF Sensor: https://amzn.to/3X366kB Map Sensor: https://amzn.to/3ZpZvSO Intake ...

Rough idle and backfiring in cold weather - Car Talk Community

Been struggling with this issue for the past several winters and have spent a ton of time trying to figure it out. This ONLY ever happens in ...

Rough idle smoothes out when warmed up - IH8MUD Forum

Engines need to run rich when cold, so the ECU dumps more fuel into the engine than is actually needed until it warms up, think of it as full ...

Engine idles very rough after cold start in colder weather - GenVibe

If your lean code is P0171, it is definitely due to the intake manifold gasket not being replaced. Replace it, and most if your rough idle issues should go ...

Very Rough Idle When Cold | Ford Forums

Ok, so it looks like when the ambient temperature drops below about 50 degrees, and the engine has cooled enough to match, that's when it get it ...

Rough idle, especially when cold | Focus Fanatics Forum

okay i believe it is your idle air controller... basically its job is to give the engine more fuel when it is cold to over come the increased ...

2000 Ford Expedition - Rough Idle Only in Cold Weather

Rough idle in cooler weather below 50 degrees. Runs fine while driving at speed, but rough idles or stalls when stopped.

Rough Idle/Loping in Cold Weather | Cummins Diesel Forum

Weak snot nosed batteries won't light up the grid heaters hot enough. 15w40 also slows down the crank rpms and the warm up. If you have good ...

rough idle in cold weather - DodgeForum.com

rough idle in cold weather · 1) check for vacuum leaks first. All over. · 2) Clean the TB, TPS, EGR, MAP/MAF, and IAC. · 3) Sadly, O2 sensors CAN ...

Rough idle when cold, perfect when warm? - ThirdGen.Org

That sounds like you're not getting enough fuel. If you adjust the choke to stay closed longer does run better or also stall out? If it stalls, ...

Rough idle - Cold weather - New Cougar Forum

Could be a vac leak from elsewhere as well. The intake manifold gaskets are known to contract in the cold and cause leaks where there were none ...

Rough Idle in Cold Weather - Jeep Cherokee Forum

My 2001 XJ has been idling rough but only during cold weather (below 40F). It idles very low as well, 500-600 rpm or so. I did as much research as I could to ...

Rough idle when cold | BobIsTheOilGuy

Does that engine have an idle air control valve? If so, clean it. Also, I would look at the new coils if they weren't replaced with MB coils ...