1996 GMC Suburban 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1996 GMC Suburban 2500
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1996 GMC Suburban 2500 ProblemsCheck Engine Light With Code P1870
Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regulator valves in the valve body. This condition does not commonly occur until the transmission reaches normal operating temperature. If the valve body is worn, replacement will be necessary to correct this concern.
One or more fuel injectors may become stuck closed causing an engine misfire and the Check Engine Light to illuminate. Our technicians tell us that this problem can be caused by some fuel additives. There are special procedures which may be able to restore the affected injector. If this fails the affected injector must be replaced.
The alternator may fail causing the battery to go dead, or an abnormal noise may develop. The dash warning light may or may not illuminate. A failed alternator will require replacement.
1996 GMC Suburban 2500 QuestionsWill a 1993 or 1994 engine fit a 1996 suburben (1 answer)
I bought a good used 93-94 motor from a junk yard for my 96 suburben, will it line up and fit in ok? If not is there a way to retro fit it?
misfire code p-1345
cranks so much worried about heating up starter and ruining it. what all should I check on engine and or truck only has 89,000 miles on it, but cant get it to start now, just cranks