STILL fighting the p0171/p0102... - 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 04-05-2011, 03:20 PM   #1
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Default STILL fighting the p0171/p0102...

New MAF didn't change a thing, still right where I started...
Everytime I try to check the EGR tube, the bolt where it hits the UIM is so rusted tight it won't budge, not even with a ton of wd-40. Suggestions?
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Old 04-05-2011, 03:39 PM   #2
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You are talking about the bolt under the TB that goes into the LIM? I've never found that to be rusted.

Did you try popping the crossover out of the way to get a better angle on it?
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Old 04-05-2011, 04:50 PM   #3
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Crossover off, and yes, that bolt.

HERE'* SOMETHING.
Sprayed a steady continuous stream of starting fluid at the EGR valve, under the solenoid, where the two nuts attach it to the exhaust...
And the idle died down then picked up. Kept doing that while I sprayed there.

Getting a multimeter to check out the solenoid tonight.
But, I may have narrowed down my code, ya think?
Super happy.

Also...
there'* a ground, passenger side, right above the battery. When I disconnected it to check it, there was an audible clicking/almost a fart(really no other way to explain it, sorry!) type noise coming from the EGR side of engine.
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Old 04-06-2011, 08:17 AM   #4
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sounds like the EGR gasket may be bad. It'* easy to change with those two 13mm nuts.

Clicking on that ground. You didn't do that wtih the ignition on did you?
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Old 04-06-2011, 10:42 AM   #5
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Quote:
Originally Posted by BillBoost37 View Post
sounds like the EGR gasket may be bad. It'* easy to change with those two 13mm nuts.

Clicking on that ground. You didn't do that wtih the ignition on did you?
No, ignition off. Where'* the EGR gasket?
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Old 04-06-2011, 11:22 AM   #6
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Between the egr and it'* pedistal. Pull the two 13mm nuts and lift the egr. Gasket is below it.
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Old 04-06-2011, 01:00 PM   #7
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My EGR and the pedestal are two separate pieces, no gasket visible. When I lift EGR off pedestal, I'm seeing metal on egr, metal on pedestal, no gasket material to speak of. Picture of it?
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Old 04-06-2011, 01:23 PM   #8
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Wait, wait..sorry..the silver part on the egr, that'* the gasket isn't it? My bad. It'* stuck so much to the EGR it looks like one solid piece.
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Old 04-06-2011, 02:01 PM   #9
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Yeah..it'* like a lead based silver looking deal.
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Old 04-06-2011, 02:50 PM   #10
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Peeled it off and cleaned EGR where it was, and will be putting a new gasket on tonight.
really hoping but really doubting that this fixes my problems.
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