Totally Puzzled
Thread Starter
Heel & Toe
Joined: Apr 2020
Posts: 23
Likes: 3
From: Oakdale NY
Totally Puzzled
First I wish everyone a Happy and Healthy New Year, lets hope it's a better one. I have an 80 with a 350 crate motor, stock except for Edelbrock Carb and Manifold. Have a weird issue. Start the car, put the blower on high, nothing, open either side door blower turns on, close door blower goes off. I Installed new blower relay, checked fan wiring, installed new door pin switches, checked wiring on starter and battery. Even removed the fuse for dome/courtesy lights still happens even with no fuse. Checked block ground also. Completely mystified. Any ideas are appreciated.
Le Mans Master
Joined: Jun 2019
Posts: 7,655
Likes: 2,469
From: Indiana
Check for all the grounds ..manually ground the blower ground wire...check your relay connections
http://repairs.willcoxcorvette.com/c.../blower-motor/
check ground to body..to bellhousing etc...
note..i cleaned my hi blower relay but then it still went bad eventually ..probably coil..so its not bulletproof ..bought one off ebay..
Last edited by interpon; Dec 31, 2020 at 07:07 PM.
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Joined: Nov 2006
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agreed, sounds like your blower isn't grounded correctly. and somehow is finding a ground through the courtesy light circuit. time to run a new ground wire from blower motor to the bell housing. and check the ground strap from block to frame. (right hand side, just in front of starter)
Thread Starter
Heel & Toe
Joined: Apr 2020
Posts: 23
Likes: 3
From: Oakdale NY
Thanks for the diagrams. Ground to Bell Housing is good. But I will try grounding the blower controls directly as well as checking all connections. Appreciate the replies. Have a Happy and Healthy.
Last edited by Tony53; Dec 31, 2020 at 07:21 PM.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
Should be a black ground wire plugged in to a tab on the blower motor mounting screw. That wire also grounds the wiper motor and ends up near the starter on a bell housing bolt to ground both the blower and the wiper motor. There have been multiple instances of that small black wire getting hooked up to the big lug at the starter instead of ground.
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