Parking brake light on dash dimly lit at all times

AnonymousD · Jun 16, 2018

I was leaving work a few hours ago and right before I started my truck I noticed the brake light in the cluster looked like it was very dimly illuminated. It went full brightness when I started the truck, like normal, then when it would normally turn back off, it stayed dimly lit. Like I'm talking very dim. I probably wouldnt even be able to see it in the day time. It still comes on brightly when I set the parking brake, so the bulb should be fine. It also STAYS ON once I turn the truck off. I got home and let it sit for about an hour, and went check it, and its still on after the truck has been off for a while.

So is there a ground I need to check somewhere or something? I'm about to start my V8 swap in my Miata and it will be down for some time, so I need my truck to not crap out on me.

Truck is a 2007 Silverado Classic with the 4.8L with drums on the rear.

AnonymousD · Jun 16, 2018

To add, I can also see it flickering when its dim. So that makes me think there's a ground somewhere I need to check.

esox07 · Jun 16, 2018

Ground or maybe a short somewhere. I dont think it is in the cluster. Maybe the contact switch for the parking brake.

Rambodog · Jun 17, 2018

Reservoir fluid level sensor?

AnonymousD · Jun 17, 2018

Ill check the reservoir fluid level sensor tomorrow. I have had it come on for that before, but it came on at normal brightness.

Ive pulled clusters out of these trucks a few times to resolder new stepper motors on the gauges, so I now how quickly they can be pulled out. But I dont remember if they have screw in bulbs or some hard wired LEDs. Ill pull the cluster to check for any loose connections or corrosion as well.

Rambodog · Jun 17, 2018

I read where someone cleaned their sensor after finding it to be gummed up and also replaced fluid in reservoir with a Turkey Baster for the fix of issue with same symptoms your describing. Saw something about ignition switch gears not lined up correctly too.
https://www.justanswer.com/chevy/5v3w4- ... rking.html
http://ww2.justanswer.com/uploads/Blueg ... _truck.pdf

AnonymousD · Jun 17, 2018

My truck was broken into a few years ago, pretty sure they tried to start it somehow and steal it. The ignition cylinder has always been a little clunky since. Ill have to look into that as well.

erndog66 · Jul 21, 2024

I have the same truck, same issue. Has only resolved this yet?

davester3500 · Jul 22, 2024

...6 year old thread and AnonymousD hasn't logged onto the site in more than 3 years. You aren't going to get a response from that user.

You might look through the wiring diagrams and diagnostic procedures on charm.li for your truck.

Parking brake light on dash dimly lit at all times

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