I've been having problems with the parking brake of my GMC C6000. Whenever the truck runs for a long time unloaded, the parking brake system stops working. The parking brake doesn't engage or disengage. In addition, the control box says 00 when in park and 99 when in gear. As my truck gets hotter, it will drop to 60, and the parking brake light on the dash turns on. It is only when I turn off my truck that it gets okay. I don't want to risk driving with a defective parking brake system. What should I do?
If you're having problems with the brake system of your vehicle, then you should always take it seriously. The reading that you see on the control box is the pressure applied on the parking brake system. The pressure switch is located in an area that is prone to getting contaminated with dirt and water, which can cause issues or problems. What you can do is to flush the system out and refill the transmission fluid with a fresh one. Also, there is a solenoid by the pump that can cause the brakes to apply when the vehicle gets hot. You might also need to check the solenoid for signs of wearing out, and replace it immediately.
I own a GMC C6000 for 13 years already. Recently, I've been having problems starting my truck. I replaced the ignition module cap and rotor, but nothing happens. There's still no spark whenever I try to start it. It's unusual because it usually starts whenever I play with the ignition relay fuse. I wonder what's causing the problem. What should I do?
This is not an unusual problem for the C6000, especially if your truck is already 13 years old. Problems starting your vehicle can be caused by several reasons, but one of the most common is due to a failed distributor. The distributor is responsible for passing the voltage from the ignition coil to the engine cylinders. This part is prone to wearing out and corrosion because of the nature of its role. So when the distributor cap or rotors fail, the fuel-air mixture will not ignite and power the engine. It is important to replace a failed distributor as soon as possible to avoid having problems starting your vehicle.
The parking brake on my truck keeps going on by itself. It also started beeping, which made me panic. I had to stop the truck and reset the brake whenever it does that, but the beeping doesn't stop. I haven't experienced this for quite a long time. What should I do to fix it?
If you want to save money from service repairs or buying replacement parts, then you can buy a rebuild kit for the hydraulic actuator. The kit is also called actuator seal kit, in case you can't find it. Remove the bolts and install the seal. It will take you less than an hour to get your parking brakes working perfectly again.