What is this and why isn't it hooked up??? - Page 2 - 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 04-25-2007, 09:25 AM   #11
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Which is the compressor? If I'm not mistaken the only thing unplugged is the air intake temp sensor, other than that I think everything is hooked up.
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Old 04-25-2007, 09:37 AM   #12
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In your middle picture..the silver topped thing to the right. With the wires going into the top. That is the leveling compressor. On your year if the system develops a slow leak...that compressor is wired to the battery and will come on as needed. Sometimes frequently during the night....draining the battery. A possible short term fix to check the battery drain would be to unhook the compressor.
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Old 04-25-2007, 09:41 AM   #13
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OK, i see what you're talking about. Right now it is raining but I will unhook it when the battery stops. Once I get it unhooked I have to charge my battery again so I can see if that is whats doing it. I'm really puzzled because the battery drain started within the last week or so.
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Old 04-25-2007, 09:56 AM   #14
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That would be a semi usual symptom of the ELC compressor. When you are near your car..w/o it running do you ever hear a "Brrrrrrrrrrrrrrrrrrr" from the under hood (say near that compressor) area?
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Old 04-25-2007, 10:10 AM   #15
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Yea, Sunday morning when the battery first died. I went to start it up and it wouldn't crank. So i put the jumpstarter on it and when I turned the key it clicked and then I heard like this hissing sound on the drivers side.
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Old 04-25-2007, 10:44 AM   #16
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The hissing sound was the ELC venting. The compressor with be a brrrrrrrrrrrrrrrrr sound.
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Old 04-25-2007, 11:33 AM   #17
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ok, that onei will have to check for
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