The brake vacuum pump exploded which caused no brakes and almost caused a crash. Metal pieces of the pump went into the engine and it also caused the camshaft to break and caused oil to leak out of the vehicle. Unbelievable that the brake pump because all these other problems related. I have had eight cars with more than 100,000 miles and nothing like this has ever happened with them this is my first GMC. My other trucks were Ford, no problems.
The brake vacuum pump exploded which caused no brakes and almost caused a crash. Metal pieces of the pump went into the engine and it also caused the camshaft to break and caused oil to leak out of the vehicle. Unbelievable that the brake pump because all these other problems related. I have had eight cars with more than 100,000 miles and nothing like this has ever happened with them this is my first GMC. My other trucks were Ford, no problems.
- Jerrid T., Los Angeles, UK