Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks


Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Jun 2015
Posts: 269
Backyard Mechanic
OP Offline
Backyard Mechanic
Joined: Jun 2015
Posts: 269
Can anyone suggest how I find the problem with my rear fan not operating. I have tried to get a voltage reading from the two wires at the blower and I get nothing. Is the current going through the harness or what I believe to be the ground and hot wire. How is it fused? The heater fan does work and I understand the rear blower will not work with the heater on. This is a new purchase and I am trouble shooting issues.


31 Chevy Roadster
64 Corvette
76 Corvette
77 Grand Prix
Wilwood Engineering1955-1957

Willwood Engineering

Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188


Joined: Nov 2001
Posts: 29,848
Tech Advisor
ChatMaster - 25,000
Offline
Tech Advisor
ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,848
You might want to purchase a wiring schematic if you don't already have one.

laugh wink beer2


The Mangy Old Mutt

"If It's Not Junk.....It's Not Treasure!"
Joined: Nov 2001
Posts: 5,906
Likes: 8
Former ChatMaster
ChatMaster - 5,000
Offline
Former ChatMaster
ChatMaster - 5,000
Joined: Nov 2001
Posts: 5,906
Likes: 8
Bob,
Out of curiosity, what's the "rear" fan? I have a '66 and have never heard of this. Also, I have a wiring diagram that I can check if I know what to look for.


Bill Barker
Previous VCCA CHAT Administrator
(VCCA Member: 9802)
Joined: Dec 2001
Posts: 845
ChatMaster - 750
Offline
ChatMaster - 750
Joined: Dec 2001
Posts: 845
Bill,

The '63 and '64 Vette Coupes did not have a cabin exhaust fan but had faux vent sculptured areas above the beltline behind each door glass. The '65 coupes had a functional cabin exhaust fan located above the belt line just behind the drivers side door glass. The cabin exhaust fan was eliminated in the '66 coupe and I believe the area above the belt line was smooth (no contoured faux or functional vents).

Joined: Nov 2003
Posts: 2,576
Likes: 2
ChatMaster - 2,000
Offline
ChatMaster - 2,000
Joined: Nov 2003
Posts: 2,576
Likes: 2
Oldie: you are correct in that the 63 coupes didn't have the rear compartment exhaust fan assembly but the 64 coupes did, unless the coupe was optioned with the 36 gal fuel tank, in which case the fan system was deleted. mike

Joined: Dec 2001
Posts: 845
ChatMaster - 750
Offline
ChatMaster - 750
Joined: Dec 2001
Posts: 845
Mike,

You are correct about the '64 having a functional cabin vent. After I posted I went and did some research finding photographs of '64 coupes with the '65 style cabin vent.

Joined: Jun 2015
Posts: 269
Backyard Mechanic
OP Offline
Backyard Mechanic
Joined: Jun 2015
Posts: 269
I finally did get power to the blower motor, it is a strange combinations of settings to get there. The hot wire plugs into the heater switch under the clock and feeds power when the control is pulled out but doesn't deliver power when the heater fan motor is running. I haven't figured out the harness yet but it may not matter since it is now working.


31 Chevy Roadster
64 Corvette
76 Corvette
77 Grand Prix

Link Copied to Clipboard
Support The VCCA!

Enjoy the forum? Become a VCCA member! The World's Best Chevrolet and GMC Club!


Member Photos
1964 Chevrolet Impala SS
1964 Chevrolet Impala SS
by DreamChevy, February 17
My 1933 Chevy 2 Dr. Sedan
My 1933 Chevy 2 Dr. Sedan
by 1939Chevy1, November 24
Back on the road 79 years later
2 1927 Chevrolet Trucks
2 1927 Chevrolet Trucks
by 1927TRUCKS, June 7
Who's Online Now
3 members (Clement, Shorty, Mr87Monty), 101 guests, and 19 robots.
Key: Admin, Global Mod, Mod
Newest Members
NeilA, Jayhicks, Tomvanhouten, Dads29Chevy, Tractorman
18,308 Registered Users
Today's Birthdays
SabrinaKarras, Speedy1
Forum Statistics
Forums58
Topics59,071
Posts429,077
Members18,308
Most Online1,133
Jan 22nd, 2020
 

Notice: Any comments posted herein do not necessarily reflect the official position of the VCCA.

Powered by UBB.threads™ PHP Forum Software 7.7.5