Skip the auto shop - Our mechanics make house calls

Q: Cold engine problems.

asked by on

When the engine is cold and I turn it on it starts up then chugs and then sounds like its going to die and runs low rpms and if I try to drive it studders unless I give it a lot of gas but if I start it when it's warm no problems. Check engine light is not on comes on every now and then but always turns off in 2-3 days what could it be?

My car has 155000 miles.
My car has an automatic transmission.

This may be related to the idle air control module/valve, which is a component that monitors the amount of of air intake at idle as it is mixed with the fuel prior to being injected into the motor. When this is faulty, it will cause an imbalance in the air/fuel ratio which can cause it to run poorly as you have described. These symptoms are usually accompanied by a Check Engine Light. I would suggest having an expert from YourMechanic come to your home to diagnose the loss of power to pinpoint what fixes will help get the car running at its best again.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Starting issues when it's cold outside

This is common for most cars in extreme winter months when the temperature drops. As you may know, car batteries create electrical current based upon chemical reactions inside the battery cell. When these chemicals are subjected to extreme cold, these...

Q: Car shuts off when I come to a stop - 2007 Dodge Charger

Hello. This behavior suggests "lean running" problems at low speed, a scenario which gets worse with colder weather. This could be caused by a clogged or malfunctioning idle air controller and/or throttle body, dirty or clogged injectors, an EGR valve...

Q: Poor mpg and a rough idle

Hi There, There are a number of things that can cause poor fuel mileage and a rough idle. A faulty camshaft position sensor is one of them. The camshaft position sensor is a magnetic sensor that monitors camshaft speed to...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.