CAR STALLS WHEN RPMS DROP BELOW 500 MARK

2001 Chevrolet Cavalier

Tiny

nicolesmith

August, 17, 2012 AT 7:17 PM

I have an 01 Chevy Cavalier Z24. When I brake to slow down, if my rpms reach the 500 mark, it usually stalls my engine. I can try to rev my engine, if I catch it in time, to get it above the 500 mark and the car won't stall. While driving, I can feel the delay in my car shifting gears as well. I just took my car to a mechanic to get a new O2 sensor. Had my car tested and the O2 sensor was the only thing that read bad. So now I'm once again stumped.

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10 Answers

Tiny

saturntech9

August, 17, 2012 AT 7:55 PM

If you turn on the ac does the idle problem go away?

Tiny

saturntech9

August, 17, 2012 AT 7:57 PM

Also which engine do you have?

Tiny

jbernal50

August, 20, 2012 AT 10:58 PM

I have the same exact problem and the ac is off when that happens

Tiny

jbernal50

August, 20, 2012 AT 10:59 PM

And it wastes a lot of gas more than usual

Tiny

jbernal50

August, 20, 2012 AT 11:00 PM

And its a 2.4 thats the one I have

Tiny

saturntech9

August, 20, 2012 AT 11:15 PM

Same model year etc?

Tiny

nicolesmith

August, 21, 2012 AT 12:36 AM

It's a 2.4 as well. I have to leave my a/c on at all times for extra assurance but the problem still occurs with the a/c on too. Just not as quickly as with it off. Still have to rev engine to prevent the stalling when braking.

Tiny

saturntech9

August, 21, 2012 AT 12:42 AM

If the problem doesn't go away with the ac on its not the problem I thought it was. Do you have any codes in the computer?I would also try removing the idl air control valve and cleaning it.

Tiny

nicolesmith

August, 24, 2012 AT 10:44 PM

I'm not sure about the code thing. But also, my mechanic had asked me today if the stalling occurs after my car warms up and it does. I don't know if that would help in answering or not. They're gonna take another look at it Thursday.

Tiny

saturntech9

August, 25, 2012 AT 1:27 AM

I would check it for codes and also clean the idle air control valve. Please keep me posted.

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