Mechanics

I HAVE A 99 THAT WHENEVER YOU STOP IT START JUMPING REALLY BAD AND WHEN YOU GIVE IT GAS TO DRIVE ITS FINE

1999 Oldsmobile Alero • 22,000 miles

It acts real funny when you stop, like it idols up and down like it want to die
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Tony2373
October 22, 2011.



Clean and test the idle air control valve, EGR and PCV valves and also test the TPS sensor

Rasmataz
Oct 26, 2011.
I dont know about in an alero, but I have a 97 subaru legacy that does that all the time but if you accelerate it doesnt do it as much, if I shift it down into 3rd instead of drive (its automatic) it doesnt do it at all. It is the speed sensor in mine. You may wanna check that if its an automatic. The speed sensor determines whether to stay in overdrive or shift down to drive, or vice versa. That may be whats causing it.

Tiny
A_bray88
Jan 22, 2012.