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Strange Electrical Problem

Jackmroz

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Jackmroz Enthusiast

Jackmroz

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Greetings all,

 

I have a '08 4X4 GMC Extended Cab Sierra 2500HD with a 6.0 gas engine. The truck has about 131K miles on it and it's been a fairly dependable ride until lately. About a month or so ago I noticed that my cruise control only worked once in a while. Most of the time I would press the steering wheel control and nothing would happen. I tried lifting the break pedal, playing with the ignition switch and fooling with the shift lever to no avail. Yesterday, when I restarted the truck after getting gas I noticed that I didn't have a mileage indicator showing and the digital shift location display was also not showing. I drove a mile or so and they both came back on but now the amp meter and temp gauge were way out of wack. My truck always indicates a charge around 14 to 15 amps and the temp would show 210 as always. After the mileage indicator and shift location display came back on the amp and temp gauge were just about buried toward the right. If I shut the truck down they would only come back part ways. I took the truck to my trusted mechanic and he figured the the digital dash display was bad and needed to be replaced at a cost of $400. The next day when I started the truck in the morning all the gages were back to working normal. Has anyone ever heard of this kind of problem and if so what was the resolution? I don't want to spend $400 needlessly but I would like to have my Cruise Control back and my gages working correctly all the time.

BusyB419 New Member

BusyB419

Posted
Posted

Not sure about cruise, may be separate issue and in lever itself. The dash cluster is common problem. A little searching on YouTube and you will find several videos on how to replace stepper motors for gauges. I recently just got into this area trying to figure out my Idoor switch module issues but have heard lots about problem in buddies trucks. Going to tackle one of them tomorrow. We found 6 motor kit with some extra bulbs on amazon for $36. Some of the posts I read talked about bad plug or solder connection in actual circuit board if it works intermittently ie, bumps. I'm interested to find out when we do buddies tomorrow if bad stepper motors will work occasionally or do they just crap out done??? Either way if one has half a brain, Internet connection, solder gun, and chump change; they should be able to avoid the stealership to fix dash cluster!

 

As for my gm wiring/switch anomoly...I'll continue to turn on my dome light to power ddm switch to roll up window when it rains!?! Wth? Lol

txab Senior Enthusiast

txab

Posted
Posted

Always check battery condition. Battery connections. Battery cables for signs of problems. Check and clean all body grounds

Jackmroz Enthusiast

Jackmroz

Posted
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Posted

When I went back to my mechanics shop I mentioned about the battery and this possibly being the problem He assured me my problem was with the gauge cluster. I guess I'll look more closely at the battery when and if it warms up around here...

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