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2010 Chevrolet Impala LS 4dr Sedan

2010 Chevrolet Impala
Trim Info:
Front Wheel Drive, 4 Door Sedan, Large
18 mpg city / 29 mpg hwy
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September 29, 2012, 2:45 pm

Keith T

Question: What is wrong with my 2000 chevy impala?

I have a 2000 Chevy Impala. I had to replace the fuel pump at the end of April this year. The car ran great for a little over a week, but shortly after it started acting up on me. After about 15 minutes of driving or if I make frequent stops, the car will kind of stall or act like its overheating, but the heat gauge is only about halfway. I will just be driving along and suddenly it is difficult to get the accelerator to cooperate. I will floor it, but it will sputter. Once this starts to happen the car also starts to buck along a bit. It suddenly makes a high squealing noise, as if a belt has slipped, and I suddenly lose everything. My power steering goes and the accelerator wont do anything. I do however have full battery power. My lights work and the radio works too, but on the dashboard a big red battery light pops up. I typically have to pull the car over and turn off the engine for about 15 to 20 minutes. After letting the car “rest” for 15 to 20 minutes, it will start back up and run for about another 15 minutes before having the same problem all over again. Lately, I have noticed that the car does not seem to have this issue as frequently when it is a cooler temperature outside. Also If I do not make any stops, and the stop lights all stay green, I can usually make it all the way to my destination without incident.

October 5, 2012, 6:13 pm

Ron W
Expert Mechanic

Could be a sticky EGR valve if the problems happen when you come to a stop or idle. You will probably need a shop to look at it as this doesn't sound like a simple issue.

Also, for all hard starting or engine performance issues, you should always start with the basics. Make sure the tune up items are done and check the charging and starting systems. The engine must have the basics done in order for it to be able to run correctly. Many things can cause this type of problem, and the simplest sometimes get overlooked.

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