1999 GMC Sierra engine problems

Filed Jan 31, 2014 · Brakes, Engine · 150,145 miles · NY

Brake fluid leaking all over bottom of truck spraying out I took to a mechanic and had 1000 dollar brake line job done got truck back and ABS brakes worked like manual brakes had a sensor and 2 ball joints replaced im being ripped of from a gmc loyal customer I was I guess back to ford or toyota for my next new trucks I had warranty issues you cheap [xxx] wouldnt pay for a waterpump that was leaking only a 7 dollar gasket also had a transmission on my work van repair and then replaced after a month of run around. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Feb 9, 2012 · Engine · 70,000 miles · FL

Two broken manifold bolts in rear drivers side of engine on 5.3 vortec engine, exhaust leak from where manifold has separated form head. Carbon buildup and discoloration visible. High temp exhaust being released under the hood. Appears to be a very common complaint on many gm vehicles and model years.

Filed Feb 22, 2006 · Engine · 65,000 miles · WI

Dt*: the contact stated a knocking noise was heard momentarily when starting the vehicle. The vehicle has been taken to the dealership 3 times who determined the pistons were knocking. The problem cannot be repaired. The dealership informed the contact of a tsb #010601028a. Updated 3/9/2006 -

Filed Jul 25, 2005 · Brakes, Engine · 46,000 miles · NY

Repeated ABS brake failure. This has not been corrected despite numerous attempts to repair problem(s). Heater motor malfunction, repeated wiper arm replacement, tailgate handle malfunction.

Filed May 31, 2005 · Engine · 40,000 miles · MI

Engine knocks on cold start

Filed Apr 29, 2004 · Body, Brakes · 49,900 miles · OH

While driving at 30 MPH the consumer applied the brakes and the pedal went to the floor, resulting in extended stopping distance. The dealer replaced the rotors and pads twice, however the problem recurred. *ak the vehicle also had tailgate and engine problems. The tires were replaced due to thread cracks.

Filed Mar 9, 2004 · Engine, Fuel system · 49,000 miles · OH

Faulty braking system engine noise muffler replace instrument panel fault tire wear transmission automatic shifting rearend noise

Filed Jan 15, 2004 · Engine · 44,000 miles · NC

Truck had complete loss of oil pressure. Mechanic said engine appeared to have been run without oil. Knowing that this did not occur the failure had to be caused by a defect in the engine. I have been unable to get any cooperation.

Filed Dec 23, 2003 · Electrical, Engine · 68,000 miles · OK

Fuel pump will over heat and than short out. Exhaust always rattles engine knocks cat. Converters went out digital display stopped working

Filed Dec 3, 2002 · Engine · GA

I experienced a sudden onset of a hissing noise coming from under the dashboard. The noise only starts above 1400 RPM and when warm. I have taken it to 2 gmc dealers and 1 independent service shop. All have stated that the noise is water going through the heater core. 1 dealer said that the coolant must have broken down and gelled or scaled into the heater core; therefore, it must be replaced. Gmc owners manual states change coolant at 150000 mile or 5 years, if so, why did the coolant break down? This appears to be a major issue and I have read of similar cases. Please help. Dt