Need help with heater blower.
Thread Starter
Navigator
Joined: Jun 2012
Posts: 9
Likes: 0
From: Christiansburg Va
Need help with heater blower.
Hey guys I'm in a bit of a quandry. I can not get the blower to turn on and just can't figure out what else to do. So far I have replaced the motor thinking it was bad, I also replaced the switch on the ac/heater controller and I've replaced the relay switch that's under the hood.
Any help on where to look next would be great.
Thanks in advance
Any help on where to look next would be great.
Thanks in advance
Melting Slicks
Joined: Jul 2005
Posts: 2,740
Likes: 3
From: Aurora Ontario
Hey guys I'm in a bit of a quandry. I can not get the blower to turn on and just can't figure out what else to do. So far I have replaced the motor thinking it was bad, I also replaced the switch on the ac/heater controller and I've replaced the relay switch that's under the hood.
Any help on where to look next would be great.
Thanks in advance
Any help on where to look next would be great.
Thanks in advance
Do you hear the motor or getting nothing at all?
Jim
Melting Slicks
Joined: Jul 2005
Posts: 2,740
Likes: 3
From: Aurora Ontario
Thread Starter
Navigator
Joined: Jun 2012
Posts: 9
Likes: 0
From: Christiansburg Va
sorry I should have included more info. It's a 78 with AC.
When I turn it on. I get nothing. No noise or anything.
I've checked the glass fuse too it's not blown. Haven't thought
to trace the power line tho. It's still tucked nicely in the plastic sleeve.
When I turn it on. I get nothing. No noise or anything.
I've checked the glass fuse too it's not blown. Haven't thought
to trace the power line tho. It's still tucked nicely in the plastic sleeve.
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
Leave the wire in the loom for now.
This is for an 81 but should be close.
Check out the ground for the motor, it should tie onto a ground post on the firewall, but the actual ground should be a braided wire from the post to the engine. Has the starter been changed? Do the wipers work correctly? Indication that the engine harness is not grounded correctly at the starter. Make or buy a test light, check for power at the connector on the resistor pack on the firewall.
This is for an 81 but should be close.
Check out the ground for the motor, it should tie onto a ground post on the firewall, but the actual ground should be a braided wire from the post to the engine. Has the starter been changed? Do the wipers work correctly? Indication that the engine harness is not grounded correctly at the starter. Make or buy a test light, check for power at the connector on the resistor pack on the firewall.
Thread Starter
Navigator
Joined: Jun 2012
Posts: 9
Likes: 0
From: Christiansburg Va
Great thanks for the help. I've got a voltage meter and will check those tomorrow. Everything else seems to work fine. Wipers lights etc.
The starter hasn't been changed it's still original.
The starter hasn't been changed it's still original.
Thread Starter
Navigator
Joined: Jun 2012
Posts: 9
Likes: 0
From: Christiansburg Va
Thanks for all your help. I managed to find the problem. The wire connector that loops back up from the relay with ground and power that goes into the fire wall was melted down pretty badly.
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