Answer to my ABS light problem
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Joined: May 2004
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From: Gallatin,TN
Answer to my ABS light problem
I had a buddy with a computer check my truck out today. The computer came back with Code 78-which is partial brake failure. That is exactly what it said on the screen. I have no idea what is going on. I changed the brake cylinders from 27mm(stock) to the 30mm ones. Every since I changed them the light has been coming on. Could there be air in line?or.........I just don't know I mean my buddy said maybe the caliper pistons. But ever since I changed the wheel cylinders heck the truck stops like it has 4 wheel discs. I have no clue! Any help would be greatly appreciated or advice. Thanks a million
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When I replaced my pads, rotors, hoses and calipers, my ABS light came on too. I check the manuel and found a switch/sensor on top of the rear axle. Bought it at the dealer (35.oo?). Replaced it and the light went out. I did use stock replacement parts. No mods. Good luck.
Thread Starter
Registered User
Joined: May 2004
Posts: 237
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From: Gallatin,TN
I had read some post on here and they said mostly that it was the rear ABS sensor on the differential also. I have changed it and still the lights are on. The code that comes back said exactly-- Code 78/Partial Brake Failure? So I just can't figure it out. Thanks Dude.
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