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8/23/11 10:53pm - Original Message: 'High Speed Fan Relay '
ranger3 Lifetime Member
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North Charleston, SC - USA

Vette(s):
1975 L48 AT AC T-top

Joined: 3/20/2004
Posts: 4176
I can't get the search function to work. Can someone remind me where the high speed fan relay is for the AC/heat system? Thanks in advance.

Scott


|UPDATED|8/23/2011 7:53:12 PM (AZT)|/UPDATED|
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8/23/11 9:02pm - Reply: 'Re: Search Function'
Jaws79 Lifetime Member
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Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4211
On my 79, it's under the hood just above the fan itself (just in front of the wiper area). HTH!
 
Barry
 
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8/23/11 10:55pm - Reply: 'Re: Search Function'
dskopp
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

Joined: 5/21/2008
Posts: 1956
Jaws79 said: On my 79, it's under the hood just above the fan itself (just in front of the wiper area). HTH!
 
Barry
 
Big smile
 
 



About the same place on my 81 !!

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8/27/11 11:55am - Reply: 'Re: High Speed Fan Relay '
rraider1
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
Here is a picture if you did not find it

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Bob R
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8/27/11 2:05pm - Reply: 'Re: High Speed Fan Relay '
The Rook Lifetime Member
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Pittsburgh, PA - USA

Vette(s):
1979 L-82, 3 spd auto, car was originally Lt. Beige currently painted Sportsman Red, Doeskin leather interior, 103,000 miles......

Joined: 12/4/2002
Posts: 600
OK not to hijack yet another thread, but what is that silver disc shaped part in the top right corner of the photo with what appears to be a vacuum line running into it?  

|UPDATED|8/27/2011 11:05:34 AM (AZT)|/UPDATED|


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8/28/11 10:07am - Reply: 'Re: High Speed Fan Relay '
rraider1
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
I beleive it is the EGR valve, not sure what year this was I saved the picture for the relay and resister location

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Bob R
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8/28/11 12:02pm - Reply: 'Re: High Speed Fan Relay '
crossfire1982
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Cramerton, NC - USA

Vette(s):
black 1982 coupe slate gray interior, 350 crossfire, 1985 fuel pump, Steeroids R&P conversion

Joined: 8/22/2006
Posts: 1094
The picture is of my 82 crossfire and yep, the silver item is the EGR valve

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8/28/11 5:11pm - Reply: 'Re: High Speed Fan Relay '
rraider1
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
You must have posted at some point and I saved it, I owe you copyright LOL
privileges


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Bob R
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8/28/11 6:31pm - Reply: 'Re: High Speed Fan Relay '
crossfire1982
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Cramerton, NC - USA

Vette(s):
black 1982 coupe slate gray interior, 350 crossfire, 1985 fuel pump, Steeroids R&P conversion

Joined: 8/22/2006
Posts: 1094
Not a problem at all, that's why I posted it and glad it has helped others.  I save pics from the net that I find helpful and keep them in my "reference" section.

|UPDATED|8/28/2011 3:31:45 PM (AZT)|/UPDATED|


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8/28/11 10:46pm - Reply: 'Re: High Speed Fan Relay '
ranger3 Lifetime Member
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North Charleston, SC - USA

Vette(s):
1975 L48 AT AC T-top

Joined: 3/20/2004
Posts: 4176
Thanks guys. Mine is a 1975. The fan works on every speed BUT high. There were threads on here talking about that specific problem but I can't get the search function to work. Keep getting a message that the search function is not available. Thanks for the picture. I will look to see if mine is the same.
 
Best,
 
Scott


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8/29/11 1:27pm - Reply: 'Re: High Speed Fan Relay '
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
The high speed blower works specifically off the relay, so if there is no high speed, chances are it is relay related, but it could also be due to a blown fuse link that powers the relay. There should be 12v at the relay any time the key is on, on the large red wire. The fan control switch closes the relay(orange wire). The burple wire goes to the blower motor.
If yer lucky, you can remove the can off of the relay, and file the points, and make it work like new again...unless there is something else damaged, such as it being melted.


|UPDATED|8/29/2011 10:27:37 AM (AZT)|/UPDATED|


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Joel Adams
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8/29/11 11:16pm - Reply: 'Re: High Speed Fan Relay '
Jaws79 Lifetime Member
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Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4211
Mine was melted when replaced!
 
Barry
 
Ouch


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8/30/11 9:27am - Reply: 'Re: High Speed Fan Relay '
ranger3 Lifetime Member
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North Charleston, SC - USA

Vette(s):
1975 L48 AT AC T-top

Joined: 3/20/2004
Posts: 4176
Thanks Joel,
 
It's been working fine and when I got in the car Sunday, no high speed fan. I have not had a chance to look at it since I stored the Vette in a big warehouse, to protect it from Irene. I will take a look this weekend. Is the relay availble at the local parts store?
 
Scott


|UPDATED|8/30/2011 6:27:31 AM (AZT)|/UPDATED|


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8/30/11 1:25pm - Reply: 'Re: High Speed Fan Relay '
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
Scott, a real parts house(like NAPA) should have one in stock. Others might also stock them, but it has been many years since that type of relay has been used, so ya never know. Ya might give it a little love tap with a screwdriver and see if it works. If it does, then opening it up and filing the points will prolly get it blowin again for a few more years.

Sometimes, too...the frigging blower switch itself can act up, but I'm sure you worked it over pretty well trying to get it to blow. I know the one on my '74 sometimes needs a little wiggle to make a good contact...

|UPDATED|8/30/2011 10:25:00 AM (AZT)|/UPDATED|


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Joel Adams
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