I wondered why I never see any posts from him anymore. He was a smart likeable man. I know it sounds tacky after the fact, but I'm very sorry to hear this and my condolences to his family......
Have you ever tried Seafoam? I've used it in other vehicles, but never in my C5, at least not for a gas gauge/sender repair. Reason I ask is I've heard it will often work when Techron will not. Might be worth a try. It is quite a bit pricier, however. What Red Line product did you use with...
Where in Michigan are you? I have a 2000 also. What does your voltage read on the DIC when this happens? It sounds alternator speed related. Perhaps the voltage regulator is going out? If you have a digital multi meter, next time this happens set it to DC Volts, and touch the probes on the...
There has to be something to the Shell fuel "cure". My 2000 never had an issue when using mostly Shell fuel. This Summer I was able to get fuels that begin with the letters "C" and another starting with "S" for quite a bit less, and they were both several miles closer. Now my gauge is having...
Older thread, but still applicable. I like your fix. Mine started detaching in 2014. I used the bathroom shower suction cup handles attached to the glass. Then used combination of bungee straps, old bedroom pillows under the glass, and motorcycle tie downs attached to the ceiling trusses. I also...
I had my battery go dead overnight a couple times, both times in a very inconvenient situation. Found out the Body Control Module (BCM) was bad. Sure enough, replaced it with one of the last new ones available in 2014 (made a Grand look not so grand!), and problem fixed. Yes, repaired BCMs are...
I have an unusual problem with my 2000 C5s twilight sentinel. Everything works great, EXCEPT the dash lights wont light up! Headlights, tail lights are fine. Just no dash lights. If I disable the Sentinel in the DIC, then manually turn the headlights on, everything works fine, and the dash...
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