GMC Suburban owners have reported 64 engine and engine cooling related problems since 1996. Table 1 shows the 21 most common engine and engine cooling problems. The number one most common problem is related to the vehicle's manifold/header/muffler/tail pipe (11 problems). The second most common problem is related to the vehicle's gasoline engine (8 problems). For details of each of the problem category, use the links in the table.
: 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. Read details...
Have owned '90gmc c1500 p/u & '99 GMC c1500 Suburban in past 12 years; both vehicles have had same problems w/ front brake pull/wear; suspension; brake pipes; engine/trans. Hesitation, hang. . . . ; corroded + battery cables, batteries; leaking hvac ducts; and on & on. Read details...
While driving at various speeds vehicle stalled without warning. Dealer had not been able to duplicate the problem. Also, windshield wipers worked intermittently. Read details...
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. Read details...
On the GMC 6. 5 the pmd, or pump mounted driver fails due to heat failure, also failing for no reason in 8 degree temperatures. When it fails there are no signs, warnings just stalling the power steering, power brakes gone. Read details...