Replaced blower motor and still no air? - 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 07-06-2006, 01:06 PM   #11
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Or, if there is another relay in the relay center that has the same number, try swapping the relays around and see if that changes anything.
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Old 07-06-2006, 02:40 PM   #12
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Yes the relay should be working on high speed...

It almost sounds like The blower motor speed control module is dead....

Thoughts guys?

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Old 07-06-2006, 04:16 PM   #13
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Quote:
Originally Posted by '98 SLE - Dudley
Is there any way to check relays to see if there still good?
But there aren't relays in the blower circuit for an ECC model in 1998 and I checked my 98 and the #5 and #6 relay slots are empty. Those are the low and high b lower relay slots. All the control is in the blower control module if it'* getting power.
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Old 07-06-2006, 04:36 PM   #14
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Then it'* off to the blower module.
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Old 07-06-2006, 05:02 PM   #15
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I posted earlier the checklist of things that might help isolate where the problem is. If the control head isn't showing lghts and acting right, power may not be going to the blower control module, e.g.

But for the blower control module the red wire is hot all the timewith power from the battery; the purple wire takes the power from the module to the blower motor. That should have power under key on and request from programmer/control head.
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Old 07-07-2006, 06:04 AM   #16
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According to the screen on my dash everything is working fine,you can adjust the temp,fan speed,A/C,defrost but nothing happens.

I looked in the maxifuse relay center and there are about 4 empty slots,but the prob couldnt be from one missing because it did work when i got the car and no one has been in there but me.

I guess i'll try swithing a few relays around and see what happens.
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Old 07-07-2006, 08:48 AM   #17
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dudley...

Hang back on the relays. imidazol mentions the procedure for checking the blower control module that is located on top of the blower box on the firewall. Tthat would be your next step, it appears relays do not control all the blower speeds and therefore can't be the entire issue.
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Old 07-11-2006, 01:51 AM   #18
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What does the module look like?

I didnt see it above the blower motor so i followed the purple wire and that goes into the Maxifuse relay box.

Should i just buy a Blower control module and try that?How much are they?

Or should i try checking the fuses in the maxifuse center?

Thanks again guys,you have been very helpful.
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Old 07-11-2006, 06:26 PM   #19
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Quote:
Originally Posted by '98 SLE - Dudley
What does the module look like?

I didnt see it above the blower motor so i followed the purple wire and that goes into the Maxifuse relay box.

Should i just buy a Blower control module and try that?How much are they?

Or should i try checking the fuses in the maxifuse center?

Thanks again guys,you have been very helpful.
The module will be to the left of the blower on the top of the tunnel that the air comes through after entering the intake. You have to raise the relay and maxifuse unit. It has one bolt in the middle. The control panel is a 4 x 6inch circuit board with a heat sink on the botton. I believe only the connectors on one end show sticking up through the top of the channel where it'* bolted in.
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Old 07-12-2006, 05:09 AM   #20
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Im Gonna have my mechanic pull the whole Maxifuse-relay board,i tried following the purple wire from the blower motor but that goes right back into the maxifuse -relay board,and i cant find anything that might be the module.

Im still stuck guys,i realize you guys might be frusterated by my lack of knowledge on the subject but i hope you realize my knack of knowledge about the Bonnie'*.

Thanks again
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