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2005 Chevrolet Impala Base 4dr Sedan

2005 Chevrolet Impala
Trim Info:
Front Wheel Drive, 4 Door Sedan, Large
21 mpg city / 32 mpg hwy
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November 6, 2012, 2:02 pm

Rosario A
 

Question: what is causing my car to shut off

at first i thought it could've been the fuel filter,so i had it replaced and added fuel system cleaner, but unfortunately it is still stalling on me. It starts fine when i turn it on, but after driving around for a few minutes,once i reached a stop or slow down, or just ease off the gas pedal, the engine cuts off. So i have to put in park and turn it back on, sometimes itll stay on or itll shut right off once i put it in drive, sometimes i even have to force it to stay on by keeping my foot on the gas while using the brake, just to give it enough gas to keep the car on, what is going on with my car, is it something minor, or do i need to take it to a mechanic,please let me know,thanks


November 15, 2012, 7:20 pm

Elizabeth K
Expert Mechanic

If it's stalling at idle or with your foot off the gas, then it sounds like you have a low idle problem. The first thing to do is clean the IAC (idle air control) valve, which is an often overlooked maintenance procedure and causes problems like that. You don't need to take it to a mechanic, you can often find videos on youtube on how to do it yourself. Try using a search term like '05 impala how to clean iac'.


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