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Old 09-07-2022, 04:28 PM   #33
hatzie
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Join Date: Oct 2008
Location: Wentworth, NH
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Re: What have you done to your truck this week.

Quote:
Originally Posted by Boog View Post
On the '03 Tahoe we put front brake pads on Sunday. Checked for any codes. Cleared to go. Tuesday light rain, used the wipers, then they would not shut off. I had 'em turn the key off when the wipers were in the down position then yank the fuse. Put the fuse back in later. All fixed! Nope, it will do it again.
Bad relay or worn out motor?
That sounds like a failed or failing pulse board inside the motor cover. You can get replacement boards. I like to try my hand at fixing dead controllers. If it turns out to be an ASIC or a programmable chip then I'm screwed. Otherwise. Failed solder joints can be touched up with 60:40 electronics solder. Discretes like relays, diodes, transistors, and capacitors can be replaced if you can find a source. Sourcing some PCB mount relays can get a little dicey the rest are usually out there.
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1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
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RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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