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Re: Need help identifying this part? [message #326798 is a reply to message #326774] Wed, 06 December 2017 10:08 Go to previous messageGo to previous message
GMC Jimmy is currently offline  GMC Jimmy   Canada
Messages: 199
Registered: September 2016
Location: Niagara, Ontario
Karma:
Senior Member
Thanks Dennis, Matt, Billy & Jim, I appreciate your input on this.

Russell, I do have the same brake-lock switch/plate, the system works as I tried it previously but didn't know this is the control unit, thanks for that... and yes, I do have disc brakes on all 6 wheels, should I have the proportioning valve with this set-up?

Bruce, thanks for your explanation. Earlier this past spring I had a new in-dash stereo system wired in, on the drive home I had an issue with the dash AC switch working intermittently, assuming it had something to do with the stereo install I went back to the installer and he removed the front dash fascia to check wiring.

Got the AC switch working again, however, during this time I noticed the brake system warning light on (IIRC there was a wire which was not connected, once the installer connected the wire the brake system warning light in the dash illuminated... co-incidence? probably not). I assumed the wire hadn't been connected due to the modification from drum brakes to disc all around. I did not experience any braking issues while driving.

Should I investigate further?

"Two issues I can think of there... the brake pressures won't be balanced front to back and you wont have the Brake Light come ON if you have a brake problem. They are not expensive, but there is a different valve depending on whether you have original drums on the back, or disk brakes on the rear."
... Which valve should I look for due to having disc brakes?

Thanks again for the help guys,

Stay Well,
Mike
 
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