1999 GMC Suburban engine problems

Filed Dec 11, 2022 · Engine · AR · fire

You'll be driving down the road the brakes will be working just fine then they'll just all sudden go out and then it backfires and blows it blows up a big cloud of fire out of the motor and that's the GMC 1999 Suburban four-wheel drive 7.4 l

Filed Oct 11, 2006 · Engine · SC

1999 gmc suburban. Intake manifold gasket failed. This occurred after replacing the water pump which failed for the second time in less than a year. My mechanic says this is epidemic with the gm vehicles which use the dexcool antifreeze. My experience bears this out: my previous vehicle was a 1999 chevy suburban, which had the same problems. There should be a recall of all these vehicles!

Filed Aug 18, 2006 · Engine · 99,000 miles · OH

1999 gmc suburban intake manifold gasket failure on 5.7l engine resulting in leaking antifreeze, and expensive fix. Thousands of similar failures, there should be a (forced) recall based on magnuson-moss !

Filed Jul 26, 2006 · Electrical, Engine · 69,000 miles · GA

Dt*: the contact stated the gas gauge located on the instrument panel failed. Also, while parked in the garage, there was a liquid observed on the floor. The dealership determined the intake manifold was leaking.

Filed Mar 9, 2005 · Engine · 50,500 miles · VA

1999 gmc suburban SUV: leaking intake manifold spilling coolant to environment. Engine damaged as coolant mixed with oil and/or fuel. 50k miles, driven by soccer mom to school, practice, church. Epidemic problem per family mechanic performs dozens of these repairs per month. High expense for this premature failre: repair $780.

Filed Nov 4, 2004 · Engine · 72,000 miles · VA

Vehicle engine will intermittently stall or cut out at highway speeds. This condition occurs approximately once or twice a month under varied driving conditions. The vehicle will restart immediately after stalling. Several times when this has occurred, the service engine light will come on, but it will turn off after 20-30 miles of driving. This has been occurring for over a year now, I have taken the vehicle to three gm dealerships, and they claim they cannot replicate the problem. They have replaced the fuel pump at my expense, and the catalytic converter under warranty. I have also taken the vehicle to two independent shops for the same problem and they have also not been able to replicate the problem or offer a solution, other than replacing the basic components (spark plugs , plug wires, fule filter etc), which I have had done.. This is an extremely dangerous problem, primarily because when the engine stalls, the power brakes and steering also fail. I live in a mountainous region of virginia and have had this happen while driving mountain switchbacks. This vehicle weighs almost six thousand pounds, and a loss of power brakes and steering while descending steep mountain grades with sharp curves creates an extremely dangerous and life threatening situation. Thank you for your assistance.

Filed Feb 19, 2004 · Engine · 71,800 miles · MI

While driving the vehicle overheated. The dealer determined that the intake manifold was leaking coolant which caused the engine to overheat.

Filed Dec 8, 2003 · Engine · GA

Without warning vehicle stalled while the consumer was driving at an undetermined speed. Consumer contacted with dealer on two separate occasions, but problem still occurs.

Filed Feb 20, 2003 · Engine · IA

Intake manifold leaks due to a defect in the design/materials of the gasket. The material prematurly breaksdown causing leaking of the manifold.

Filed Jan 22, 2003 · Engine · NY

Left rear intake manifold leak. On a 1999 vehicle with only 48,520 miles (light useage for mom and kids) this problem seems a bit premature. My brother who owns a 1998 gmc with about 60,000 miles had simular problem. The part must be defective as both problems are very simular in nature. Cost to fix $700 to $1,000 . Thank you