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#4724996 - 04/12/18 06:44 PM 1997 Chevrolet Cavalier low idle surging
97prizm Offline


Registered: 05/25/05
Posts: 752
Loc: USA
I'm back,

I fixed the coolant issue, it was a bad coolant cap,but now a biggie. Yesterday out of the blue I started the car turned it off then turned it back on. It started surging, low idle 5-600 rpm sometimes wouldn't rev above 4000 rpm. At first my dad thought a bad vacuum hose. I sprayed starter fluid all over, with no increase in rpm. I've heard the crank or throttle position sensor can go bad. All help would be great.
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If at first you don't succeed fail fail again. (Waldorf and Statler.)
1997 Geo Prizm
1984 Mazda RX-7 Spec 7

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#4725002 - 04/12/18 06:55 PM Re: 1997 Chevrolet Cavalier low idle surging [Re: 97prizm]
Alex_V Offline


Registered: 04/10/16
Posts: 1174
Loc: Campbellsville, KY
I just worked on a '97 last week - wouldn't idle at all. As soon as I started spraying carb cleaner down into the throttle body it started getting better, so I removed and cleaned it thoroughly which fixed it. Commsnded idle is very low, barely above 600 when warm.
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#4725446 - 04/13/18 07:48 AM Re: 1997 Chevrolet Cavalier low idle surging [Re: 97prizm]
rollinpete Offline


Registered: 03/20/17
Posts: 501
Loc: West Ma.
Could be your (IAC) idle air control valve. Here's a video on how to check it. (It may help) also you could try cleaning your maf sensor. Good Luck.

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Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive183k miles
Last Change;
Penn. Plat. HM. 5w30
Fram xg8a, Fram CA8141

I like my oil (slippery).


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#4725559 - 04/13/18 09:29 AM Re: 1997 Chevrolet Cavalier low idle surging [Re: 97prizm]
mk378 Offline


Registered: 09/27/15
Posts: 1449
Loc: USA
When you put it in gear and are moving, does it drive OK?

"won't rev over 4000 rpm" is not the IACV.

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#4725924 - 04/13/18 03:49 PM Re: 1997 Chevrolet Cavalier low idle surging [Re: 97prizm]
Silverado12 Offline


Registered: 02/26/13
Posts: 3149
Loc: Central Virginia
A clogged injector can cause surging, hesitation, etc. Sounds like a fuel issue to me.
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#4726302 - 04/13/18 10:07 PM Re: 1997 Chevrolet Cavalier low idle surging [Re: 97prizm]
artificialist Offline


Registered: 09/23/07
Posts: 8598
Loc: Florida
Failing ignition coil pack?
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#4726408 - 04/14/18 05:00 AM Re: 1997 Chevrolet Cavalier low idle surging [Re: artificialist]
Delta Offline


Registered: 04/20/14
Posts: 1184
Loc: South Central PA
Originally Posted By: artificialist
Failing ignition coil pack?


If it's the 2.2 I would agree. Quite common on those engine.
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