Heater Blows on Low! - 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 01-08-2004, 10:43 PM   #11
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Only text-friendly. Sorry. We just have to be more descriptive without the photos.
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Old 01-09-2004, 10:40 AM   #12
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Quote:
Originally Posted by willwren
Only text-friendly. Sorry. We just have to be more descriptive without the photos.
*grumble*

Okay, in that case I guess I can just start typing and reconstruct the project from memory...

More when I have something to post...
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Old 01-16-2004, 08:46 AM   #13
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Quote:
Originally Posted by willwren
Sounds like a clogged evap core to me. Use the procedure in Techinfo.
i wil try that..it does sound like the speed increases however the air coming out does not..thanks
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Old 01-17-2004, 12:32 PM   #14
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I have been having that same problem with my 92' bonny se...
THe a/c barely blows out too...

acg_ssei - i can host pictures of the evap core cleaning procedure if u want...(with the test too).... either way... can i have some pics .. i dont know where exactly the evap core is...and want to make sure i dont screw anything up trying to do it.
lemme know (by email if that is easier)
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Old 01-17-2004, 10:30 PM   #15
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ok guys, here is what happens. things that get dropped into the vents and sucked into the cowl vents go straight to the spuirrel cage. i had customers come in with the same problems many times. remove the blower motor and removed stuff like candy wrappers, leaves, mouse nests, and papers. this is a common problem. the fan will spin , but with the stuff on the inside of the fan, when it spins, centrifical force moves it to the fins and doesnt let the air move through it.
if you had a problem with the fan speeds, usually its the blower resistor that causes that. if that is your problem, replace it.
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Old 01-19-2004, 06:45 PM   #16
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Where is the blower motor, and resistor located? how bout the evap. core???

Anyone have pics???
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Old 01-19-2004, 08:23 PM   #17
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some are located behind the glove box and under the dash. the risistor will have like a 4 or 5 wire connector and has 2 screws that hold it to the heater box.
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Old 01-20-2004, 06:42 PM   #18
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But how do i reach the evap. core????

I whould like to try to fix my heat/ a.c. .... and apparently cleaning the evap. core can make a sufficent difference...

Right now there is barely any power... the heat and a/c just trickle out...

Cant i reach part of the evap. core from the engine compartment???
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Old 01-20-2004, 07:56 PM   #19
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dont take the evap out. take the blower motor out and clean the fan
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Old 01-20-2004, 08:35 PM   #20
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My blower motor just died on me today. I drove the Bonnie today (about 150 mile trip) and when I get home, the blower motor dies. No vent, ac, nothing...It worked perfectly before that. I'm looking for the fuse, but can't find the blasted thing anywhere...if there even is a fuse.

Any ideas? It worked perfectly, the fan created decent velocity and suddenly it just stopped. When I turn the ac on, I can hear it turn on in the engine, but the fan doesn't kick on.

argh.

I'm having one of those days I think.
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