Table 1 shows three common engine and engine cooling related problems of the 1998 GMC Sierra 1500.
| Problem Category | Number of Problems |
|---|---|
| Manifold/header/muffler/tail Pipe problems | |
| Engine Cooling System problems | |
| Engine And Engine Cooling problems |
Service request # filed at general motors regional office #(71-448842107)intake manifold gasket leaking in all 4 corners on my GMC sierra pick up truck. Loss of anti-freeze, and possible seizure of engine. Backorder of gm intake manifold gaskets. A petition has been created and sent to gm and the better business bureau explaining . . . . As of April 10, 2002, there is a nationwide backorder of the intake manifold gasket. At this time, is it not even known when the part will become available. Being aware of this proves there is a serious problem to be addressed. Because of apparent poor engineering, gm can not manufacturer replacements fast enough for all the vehicles in which they are needed. Intake manifold leaks can lead to any number of very serious, and expensive, problems. While the part itself isn't costly, the labor to repair it is very intensive, and has been quoted around $800 usd (give or take a couple hundred depending on the vehicle). This is in addition to any other costly problem(s) the intake manifold gasket leak may have produced. We are demanding accountability from general motors. A nationwide backorder should be reason enough for gm to assemble a recall. We can only hope that the world's largest vehicle manufacturer who has been the world's automotive sales leader since 1931 will stand up and claim responsibility for a problem that is so prevalent among their vehicles. Recalls should be mandated in all cases of incompetence, not solely when it affects public safety. . Read more...
Gm has admitted it has faulty seals on the coolent system and has claimed dex cool is fine but the radiator caps are faulty as they corode. If the dex cool corodes the caps will it not follow it may corode other parts of the system? and if gm has admitted installing faulty seals why won't they at least recall this part and fix it instead of making the consumer fix it for them. I have been experiancing cooling system problems and wish the company would at least fix the problems they admit to. I do not want to go to the garage one day and find all the coolant on the floor.
Had a antifreeze leak for months. Started looking around and noticed the fitting from the heater core return line into the engine block was corroded and ready to fall of. I barely touched the return line and it the fitting snapped off. I'm the 3rd person I know with this same problem, same vehicle. There is obviously a problem here gm needs to address.