Power Window Relay
Thread Starter
Racer
Joined: Jul 2000
Posts: 416
Likes: 4
From: Iron Mountain,Michigan
Power Window Relay
Hello Fellow Vetteheads,
Today my power windows stopped working, dug out my relay and found it to be dead, my question is, do I even need the relay if I just jump out the plug with the power to the window switches? What is the negative doing so? Windows work just great this way. Thank You All in Advance.
Today my power windows stopped working, dug out my relay and found it to be dead, my question is, do I even need the relay if I just jump out the plug with the power to the window switches? What is the negative doing so? Windows work just great this way. Thank You All in Advance.
Race Director
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
Electrical 101 in a sentence:
No, you should not jump a relay, fusible link, circuit breaker, fuse or replace a wire w/ a smaller wire.
Fire, destruction, death, possibly the end of the world for someone.
No, you should not jump a relay, fusible link, circuit breaker, fuse or replace a wire w/ a smaller wire.
What is the negative doing so?
Melting Slicks
Joined: Oct 2004
Posts: 2,662
Likes: 8
From: Knoxville Tennessee
I just went thru the same thing with mine but the switches were bad. I replaced them and the windows literally jump up and down the tracks. The power window relay has been discontinued by Chevrolet but a company by the name of Modern Chevrolet bought the right to reproduce this and many other parts for Chevy cars. The AC Delco part # for the relay is 7729602. It is also used as a relay for camero cowl vent. The cost is approx $19.00 and I received mine in one day. Their phone # is 1-800-334-0165. Hope this helps!
Bernie
Bernie
Instructor
Joined: Jun 2005
Posts: 109
Likes: 0
From: NH
The reason you shouldn't bypass the relay is:
A relay controls a larger current with a smaller current. If the relay is bypassed the larger current would need to flow through the switch. This presents a fire hazard and is likely to damage the switch.
A relay controls a larger current with a smaller current. If the relay is bypassed the larger current would need to flow through the switch. This presents a fire hazard and is likely to damage the switch.
Melting Slicks
Joined: May 2004
Posts: 2,505
Likes: 513
From: Willowbrook IL
St. Jude Donor '13-'14-'15-'16
Originally Posted by JME
How did you know that it was bad? Both my windows are not working and maybe its the relay.
Where is it? How did you test it? My car is a 75.
Thanks,
JME
Where is it? How did you test it? My car is a 75.
Thanks,
JME
IMsent but no response to it either
Don
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Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
the switch is rated at more than 30 amps... the relay for the windows has the ignition and 30 amp power.... the relay in this situation only works when the ignition is on....but the main power of 30amps is still going to the switch......... if you look at the wires to the switch and to the door, they are both the same gauge...... also, if it was for the little power operates the big power idea then you would need a relay for each side....... i needed my windows to work without the ignition on so i wired them with a fuse to the battery.... ........
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