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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 03-17-2011, 02:54 PM   #1
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Under the car for the first time in forever. Trying to unhook the battery connection to clean it, but can't get a good angle. Tips?

Also, I'm thinking it may be condensation, it doesnt smell like anything, but on the transmission bolt heads, oil pan, etc, there'* a black liquid.

Back to car now, going to wipe down all the sludge I can find and then try the battery again. Tips will be appreciated!
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Old 03-17-2011, 03:11 PM   #2
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Negative battery cable is a 1/2" ratchet, 13mm deep socket with say maybe a 6 inch extension. Positive would be a 1/4" ratchet with deep 13mm socket.

I've never done it huh?
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Old 03-17-2011, 05:05 PM   #3
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damn, not long enough extension to do either one. Wiped all the gunk off both while still connected, but anymore work as far as that'* concerned will have to wait till next week.

Looking under right front fender, I see a canister(HVAC right?) When I touch the connector to it, just barely move it any direction, a hiss occurs. Is that normal? Or should I replace it?
(I know clogged HVAC/broke HVAC line leads to leaking, which I have, and no air out of main vents, also a problem, os while I'm under I figured I'd poke around and ask).
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Old 03-18-2011, 09:02 AM   #4
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right front is passenger. That canister is the vacuum tank for the HVAC system. This line should lead into the cabin as a purple tube at the HVAC programmer. If you have vacuum to that purple tube, then you need to do the fix as outlined in another thread.

"Vents" by Jamestharp. I think the link to the nipple fix is on something like page 6 or 8
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