Power Locks in 78 will not work?
Thread Starter
Instructor
Joined: Oct 2002
Posts: 214
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From: spring tx
Power Locks in 78 will not work?
Both Power Lock is the 78 I am working on are good and tested to work on the bench,installed and well grounded, all fuses are good, switches tested and work, all other electrical works, new dash wiring harness?
any ideas?
any ideas?
Thread Starter
Instructor
Joined: Oct 2002
Posts: 214
Likes: 0
From: spring tx
no,
I just posted this after looking harder and finding that the as fuse is blown and 2 replacement immediately:
anyone have a diagram of what plugs into the fuse block?
the first fuse on the left under the circuit breaker, keep blowing fuses, keeps the power locks in the locked position constantly applying voltage to pull in the actuator, quickly turning the actuator in to a handful of heat.. this is with or without the switch installed..the operation of the switch tried to extend/open the lock but move maybe a 1/2 inch. so i immediately unplug the actuators...i know that fuse also powers the lighter, and clock ( i think)...but what else...and the pink wire plugged into the middle accessory slot is required to provide power to the locks apparently
I just posted this after looking harder and finding that the as fuse is blown and 2 replacement immediately:
anyone have a diagram of what plugs into the fuse block?
the first fuse on the left under the circuit breaker, keep blowing fuses, keeps the power locks in the locked position constantly applying voltage to pull in the actuator, quickly turning the actuator in to a handful of heat.. this is with or without the switch installed..the operation of the switch tried to extend/open the lock but move maybe a 1/2 inch. so i immediately unplug the actuators...i know that fuse also powers the lighter, and clock ( i think)...but what else...and the pink wire plugged into the middle accessory slot is required to provide power to the locks apparently
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
The way the door locks are wired 1 switch can cause both sides not to work. One of the first things I do is install my good off the shelf switches and test, 9 times out of 10 that fixes it. Advanced Auto has a window switch that is the same as the lock switch , Help # 49241 , cost about $8 each. The pigtails also cause problems.
Drifting
Joined: May 2005
Posts: 1,258
Likes: 38
From: springtown Texas
i just went thru this also on my 82. tested the motors, wiring and ground. it ended up being the pass side switch. i got a new one from oreiilys ($18.00) and now both locks work perfect! i could use new pigtails though. anyone sell them new or aftermarket?
i think new switches or switch will fix the op lock problem
i think new switches or switch will fix the op lock problem
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
i just went thru this also on my 82. tested the motors, wiring and ground. it ended up being the pass side switch. i got a new one from oreiilys ($18.00) and now both locks work perfect! i could use new pigtails though. anyone sell them new or aftermarket?
i think new switches or switch will fix the op lock problem
i think new switches or switch will fix the op lock problem
http://willcoxcorvette.com/product_i...ducts_id=11406
EDIT - $18.00 ?? dang I was off . Hope blue72 isn't pizzed I said about $8
Last edited by ...Roger...; Aug 25, 2010 at 06:06 PM.
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Thread Starter
Instructor
Joined: Oct 2002
Posts: 214
Likes: 0
From: spring tx
yep they had one switch...tested it in place with one of the old...no short, but no major movement, then took that old switch and swapped out with the other one...blew the fuse immediately...so I hope with 2 new ones we are good...other one comes in tomorrow am....
Instructor
Joined: Jun 2010
Posts: 130
Likes: 0
From: Summerville SC
No sure if this will be the same. This is the fuse diagram for my '81.
and here's one from a 79...
As for the pigtails, unless they are in bad shape, you may be able clean them with a decent contact cleaner. Once the vertigris (green nastiness) is cleaned off, apply a bit of dialectric grease and try them out.
Good luck!
and here's one from a 79...
As for the pigtails, unless they are in bad shape, you may be able clean them with a decent contact cleaner. Once the vertigris (green nastiness) is cleaned off, apply a bit of dialectric grease and try them out.
Good luck!
Last edited by Vetteran'81; Aug 25, 2010 at 09:33 PM. Reason: Better pic
pepboys here in ft.worth wants $18.00 but were out so i went to oreills and they were also $18.00. for $6.25 i want 1 for my drivers side plus 2 spares.
