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-   1992-1999 (https://www.gmforum.com/1992-1999-91/)
-   -   Heat/AC Blower Motor Speed (https://www.gmforum.com/1992-1999-91/heat-ac-blower-motor-speed-266082/)

pappyl 10-12-2007 09:33 PM

Heat/AC Blower Motor Speed
 
1995 SSEi 3800 Supercharged
Have a bit of a problem. Can turn down the fan speed via the control, the meter levels go up and down, put the fan speed stays on high.
One speed - high -- and that's it.
Not sure whether it's the motor or the controller at this point.

Anyone have an idea?

Archon 10-13-2007 01:29 AM

Probably something that would be better answered in the 92-99 section, rather than the 2000-2005. ;-). You could have a bad blower control module.

crash93ssei 10-13-2007 02:37 AM

Moved 8)

pappyl 10-14-2007 07:27 PM

Yeah - posted in the wrong one forum. Thanks for moving it.

So is the blower control module part of the environment control (in the dash) or is it a seperate control box somehere?

Archon 10-14-2007 10:31 PM

These years are not exactly my strong point, but if I remember correctly, it is in the engine compartment, against the firewall, on top of the ductwork. Look for a rectangular(?) cover with wires going to it on the passenger side.

sonoma_zr2 10-14-2007 10:37 PM


Originally Posted by Archon
These years are not exactly my strong point, but if I remember correctly, it is in the engine compartment, against the firewall, on top of the ductwork. Look for a rectangular(?) cover with wires going to it on the passenger side.

correct, under the maxi fuse center in the engine compartment.

BillBoost37 10-15-2007 08:34 AM

The main controlling point for the blower motor is the BCM or blower control module. It is located under the maxifuse relay center on top of the HVAC box on the firewall.

I don't have the diagnostics with me..however that's typically the part that fails.

pappyl 10-15-2007 08:48 AM

Thanks,

I'll take a look-see

BillBoost37 10-15-2007 09:52 AM

Problem is...there's no good way to test it. Getting to it is fun as well. You need to remove the maxifuse center from the firewall (2 10mm nuts).

pappyl 10-15-2007 10:23 AM

Well, first things first, will check for disconnected wires.
So, it's a small control box behind the max-fuse panel?


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