Water in cylinders - UPDATE - its back on the road - Page 7 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-02-2007, 03:38 PM   #61
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Gumout Carb + Choke cleaner - BTW, I do remember scubbing on it a liittle ( the little springy looking thing) with the ol' tooth brush.
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Old 12-02-2007, 03:38 PM   #62
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Was the MAF sensor in the TB when you cleaned it also, and as Don asked, what cleaner did you use?

Do you have both o-rings on the pcv now? One on the cap and one on the valve?
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Old 12-02-2007, 03:42 PM   #63
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Quote:
Originally Posted by willwren
Was the MAF sensor in the TB when you cleaned it also, and as Don asked, what cleaner did you use?

Do you have both o-rings on the pcv now? One on the cap and one on the valve?
No the MAF was removed. I used the procedure that'* here on the forum. I'll check the O rings. I know for a fact that the big o ring for the cap is there. It came with one with the UIM. I'll check that out as well. Thanks for the help fellas.
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Old 12-02-2007, 03:52 PM   #64
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Both O rings are installed - no doubt. The bigger one and the smaller one around the body of the PCV itself. I think we can rule that out....
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Old 12-02-2007, 04:17 PM   #65
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I suspect a vac leak or IAC issue. If you don't have a scantool, you'll need to get it scanned to watch the IAC counts and make sure it'* moving.

Vac leaks can be pinpointed by spraying carb cleaner on each vacuum connection at idle, as well as around the base of the TB and UIM.

Your idle will change when you find your leak, as the carb cleaner is sucked in and combusted.
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Old 12-02-2007, 04:30 PM   #66
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Quote:
Originally Posted by willwren
I suspect a vac leak or IAC issue. If you don't have a scantool, you'll need to get it scanned to watch the IAC counts and make sure it'* moving.

Vac leaks can be pinpointed by spraying carb cleaner on each vacuum connection at idle, as well as around the base of the TB and UIM.

Your idle will change when you find your leak, as the carb cleaner is sucked in and combusted.
Will AZ be able to do this scanning ? Will their scanner be able to detect the IAC counts ?

I just pulled the IAC sensor. Should I be able to push the plunger in with my thumb? I cant move it. Does that mean its stuck open?
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Old 12-02-2007, 04:41 PM   #67
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It'* a stepper motor (controller, not sensor) that has a geared shaft. Think of it as rack and pinion. No, you cannot easily push it in.

Hook it up but leave it out. Start the car (you'll have to plug most of it'* hole with your thumb). Does it move when starting or trying to start?
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Old 12-02-2007, 04:53 PM   #68
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Will,

Man do I fill ike an idiot. I think when I replaced the TPS, I forgot to put the rubber "T" back on the side of the TB. I put the IAC back in it, put the evap line back on it and it'* better, but still high at 1200 - 1400 rpm. When first started it idles at 1000, but then climbs slowly during warm up.

I assume the IAC steps in and out to adjust how much air flows therfore adjusting the idle speed.
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Old 12-02-2007, 04:55 PM   #69
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I'd check for other vacuum leaks, just in case.
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Old 12-02-2007, 04:59 PM   #70
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Quote:
Originally Posted by harofreak00
I'd check for other vacuum leaks, just in case.
Haro,

I think thats where I'm headed. thanks for the input.
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