Blower quits on 95 GMC

scavanger · 08-21-2007, 04:08 PM

The heater-Ac blower on my 95 runs intermitently on all speeds. Do I look for a bad ground or connection or is there something else that would cause this. It does not have the climate control, just the basic manual controls.

Thank you
scav.

bradrhale · 08-22-2007, 03:39 PM

i would check connections as well as amp draw. does it blow intermittently no matter if you have it on dash, floor, or defrost??

scavanger · 08-23-2007, 03:30 PM

Any air position and any fan speed the fan intermitently quits, then in anywhere from a few seconds to 10 min it will start again.I have played around with the connections to the relay and can't duplicate it.
I have been told the motor can do this. Advanced auto has one for about $30 so I think I will give that a try.

Thanks for the reply.
Scav.

scavanger · 08-31-2007, 10:00 PM

I searched for a long time and numerus times and could find nothing.
Finally tucked way back above the heater box behind the glove box was a pair of wires and connector. There was a red wire and a black wire and it appears that the red supplys power to the relay and the lower fan speeds. The black must be the ground. The way I found it was after the fan had been running for about 15 min I put my hand in that area to look for more wires and almost burned it. The connection on the black wire had gone bad and was getting hot. I simply replaced the connection on the black and things seem to be good now. Hope this may help someone else in the future.

Scav

crabtruck · 09-01-2007, 02:29 AM

Thank you for posting back on it. Final answers will probably help someone else down the line, no matter how simple seeming.

ace · 10-26-2007, 01:13 AM

That year has a bad ac system i bought a brand new surburban and had to carry it back and get a new ac and now it dosent work fully.

08-21-2007, 04:08 PM	#1
scavanger Senior Member Join Date: May 2007 Posts: 262	Blower quits on 95 GMC The heater-Ac blower on my 95 runs intermitently on all speeds. Do I look for a bad ground or connection or is there something else that would cause this. It does not have the climate control, just the basic manual controls. Thank you scav.

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08-22-2007, 03:39 PM	#2
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,030	i would check connections as well as amp draw. does it blow intermittently no matter if you have it on dash, floor, or defrost??

08-23-2007, 03:30 PM	#3
scavanger Senior Member Join Date: May 2007 Posts: 262	Any air position and any fan speed the fan intermitently quits, then in anywhere from a few seconds to 10 min it will start again.I have played around with the connections to the relay and can't duplicate it. I have been told the motor can do this. Advanced auto has one for about $30 so I think I will give that a try. Thanks for the reply. Scav.

08-31-2007, 10:00 PM	#4
scavanger Senior Member Join Date: May 2007 Posts: 262	I searched for a long time and numerus times and could find nothing. Finally tucked way back above the heater box behind the glove box was a pair of wires and connector. There was a red wire and a black wire and it appears that the red supplys power to the relay and the lower fan speeds. The black must be the ground. The way I found it was after the fan had been running for about 15 min I put my hand in that area to look for more wires and almost burned it. The connection on the black wire had gone bad and was getting hot. I simply replaced the connection on the black and things seem to be good now. Hope this may help someone else in the future. Scav

09-01-2007, 02:29 AM	#5
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	Thank you for posting back on it. Final answers will probably help someone else down the line, no matter how simple seeming.

10-26-2007, 01:13 AM	#6
ace Junior Member Join Date: Oct 2007 Posts: 3	That year has a bad ac system i bought a brand new surburban and had to carry it back and get a new ac and now it dosent work fully.