Climate Control Question: - 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 12-15-2004, 06:27 PM   #11
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What'* the problem? No blower? Air being directed only one way (defrost)?
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Old 12-15-2004, 06:31 PM   #12
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Air being directed ONLY to the defrost AND NO HIGH SPEED for the fan.

Rick
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Old 12-15-2004, 06:36 PM   #13
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Defrost is the default when there is no vacuum present. I would suspect a disconnected vacuum line at the reservoir right next to the brake booster.

With a manual climate control, LO, MED1 and MED2 go through a series of resistors but HI goes from another fused source, through a relay and to the blower motor. I would suspect either a blown fuse or a faulty relay.

I'll try to find specifics on the fuse and relay location while you check the vacuum line. K?
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Old 12-15-2004, 06:41 PM   #14
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Sounds good. I'm going to look now. Thanks.

Rick
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Old 12-15-2004, 06:43 PM   #15
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The HI blower fuse is #3 right hand underhood fuse block (30amp) and the relay is in the same neighborhood. Looking at the relays along the firewall from the front of the vehicle:

ac compressor.....horn.....blower...empty...ABS pump...main...Hi coolant fan...LO coolant fan

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Old 12-15-2004, 07:00 PM   #16
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Well, I tried getting the fuse out, but it just pissed me off, so I'll have someone at a shop change it. If that doesn't work, I don't give a crap anymore. Thanks for the help, but if I mess with this car too much longer, it'll have a salvage title by the end of tonight.

Rick
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Old 12-15-2004, 07:01 PM   #17
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Oh, I almost forgot. I did find the disconnected vacuum line, and now have the correct functions with the climate control. Thanks!

Rick

EDIT: Would that disconnected vacuum line cause the stumbling I've been having in the engine?
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Old 12-15-2004, 07:04 PM   #18
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Quote:
Originally Posted by corder13
EDIT: Would that disconnected vacuum line cause the stumbling I've been having in the engine?
Yes.
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Old 12-15-2004, 07:06 PM   #19
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Quote:
Originally Posted by corder13
if I mess with this car too much longer, it'll have a salvage title by the end of tonight.
Patience, Grasshopper.... patience.
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