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

Registered: 05/25/05
Posts: 729
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.
If at first you don't succeed fail fail again. (Waldorf and Statler.)
1997 Geo Prizm
1984 Mazda RX-7 Spec 7

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

Registered: 04/10/16
Posts: 1118
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.
I like Chevy and Valvoline.

'13 Cruze, 1.4T, 110K
'85 GMC C3500, 454, 130K
'82 Mercedes 300CD, OM617 turbo, 165K
'67 Suburban, 350, 331K

#4725446 - 04/13/18 07:48 AM Re: 1997 Chevrolet Cavalier low idle surging [Re: 97prizm]
rollinpete Offline

Registered: 03/20/17
Posts: 351
Loc: Westfield, 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.

97 Ford Expl. 4.0 ohv 4wd 5spddrive182k miles
Last Change;
Penn. Plat. HM 5w30
Supertech ST8 (wix), Fram CA8141

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

Registered: 09/27/15
Posts: 1333
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.

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

Registered: 02/26/13
Posts: 3034
Loc: Central Virginia
A clogged injector can cause surging, hesitation, etc. Sounds like a fuel issue to me.
12 Chevy Silverado ext. cab LS, 2WD 4.3 auto
16 Challenger R/T Shaker 5.7 manual B5 blue
07 Harley Dyna Street Bob 96 c.i. 6 sp.
00 Mustang GT auto

#4726302 - 04/13/18 10:07 PM Re: 1997 Chevrolet Cavalier low idle surging [Re: 97prizm]
artificialist Offline

Registered: 09/23/07
Posts: 8542
Loc: Florida
Failing ignition coil pack?
2010 Lancer Ralliart Sportback

#4726408 - 04/14/18 05:00 AM Re: 1997 Chevrolet Cavalier low idle surging [Re: artificialist]
Delta Offline

Registered: 04/20/14
Posts: 1060
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.
'17 VW Golf GTI 2.0T - 6MT - 6K
'15 Camry SE - 2.5 - 18K
'12 Jeep Liberty 4x4 3.7 - 86k
'99 S10 - 2.2 5MT - 153K