blower switch diagram? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chev74 · 03-23-2008, 01:15 AM

Im having trouble with my heater blower switch- basically it doesnt work. I was wondering if i could get someone to post a wiring diagram for it or help me dissolve this problem.

I have a non AC truck; the switch has 4 prongs on the back of it, but the harness only has three receptors

Im not getting any juice (i dont think) to the harness

chev74 · 03-23-2008, 01:17 AM

This is what the harness looks like that plugs into the switch- am i missing a female spade i one of these holes?

BoeJaker1976 · 03-23-2008, 02:01 AM

These came out of a 76 wiring -10. Im pretty sure they are wired the same. But i hope this helps!

chev74 · 03-23-2008, 02:07 AM

ill se what i can do- THANKS for the quick response

chev74 · 03-23-2008, 02:13 AM

ALSO- what is the best way to remove the cables that direct the airflow/temp? they seem to be riveted on, or have some clip holding them

BoeJaker1976 · 03-23-2008, 05:48 AM

Are you talking about the cable that goes to the heater core flap on the back of the control? Well, if you are, then all you do is take some needle nose pliers, and pull up on that little china hat looking deal, but dont bent it, because you can re use those

chev74 · 03-23-2008, 11:20 PM

got it done. They were a pain to get off but i flattened them back out with pliers and reused them- THANKS

03-23-2008, 01:15 AM	#1
chev74 Addicted to Chevy Join Date: Dec 2004 Location: Tyler, Tx Posts: 857	blower switch diagram? Im having trouble with my heater blower switch- basically it doesnt work. I was wondering if i could get someone to post a wiring diagram for it or help me dissolve this problem. I have a non AC truck; the switch has 4 prongs on the back of it, but the harness only has three receptors Im not getting any juice (i dont think) to the harness Last edited by chev74; 03-23-2008 at 01:17 AM.

03-23-2008, 01:17 AM	#2
chev74 Addicted to Chevy Join Date: Dec 2004 Location: Tyler, Tx Posts: 857	Re: blower switch diagram? This is what the harness looks like that plugs into the switch- am i missing a female spade i one of these holes? Attached Images

03-23-2008, 02:01 AM	#3
BoeJaker1976 Registered User Join Date: May 2005 Location: copperas Cove, TX Posts: 85	Re: blower switch diagram? These came out of a 76 wiring -10. Im pretty sure they are wired the same. But i hope this helps! __________________ 1976 Red chevy steppy, Proud service member, US ARMY 15Y, AH-64D Apache Longbow Armament, Avionics, Electronics technician

03-23-2008, 02:07 AM	#4
chev74 Addicted to Chevy Join Date: Dec 2004 Location: Tyler, Tx Posts: 857	Re: blower switch diagram? ill se what i can do- THANKS for the quick response

03-23-2008, 02:13 AM	#5
chev74 Addicted to Chevy Join Date: Dec 2004 Location: Tyler, Tx Posts: 857	Re: blower switch diagram? ALSO- what is the best way to remove the cables that direct the airflow/temp? they seem to be riveted on, or have some clip holding them

03-23-2008, 05:48 AM	#6
BoeJaker1976 Registered User Join Date: May 2005 Location: copperas Cove, TX Posts: 85	Re: blower switch diagram? Are you talking about the cable that goes to the heater core flap on the back of the control? Well, if you are, then all you do is take some needle nose pliers, and pull up on that little china hat looking deal, but dont bent it, because you can re use those __________________ 1976 Red chevy steppy, Proud service member, US ARMY 15Y, AH-64D Apache Longbow Armament, Avionics, Electronics technician

03-23-2008, 11:20 PM	#7
chev74 Addicted to Chevy Join Date: Dec 2004 Location: Tyler, Tx Posts: 857	Re: blower switch diagram? got it done. They were a pain to get off but i flattened them back out with pliers and reused them- THANKS

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