GMC Suburban 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your GMC Suburban 1500
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GMC Suburban 1500 ProblemsInternal Faults in Distributor Can Cause Engine Problems
The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.
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.
GMC Suburban 1500 Questionshigh speed on a/c fan switch burns out switch; high is on a separate wire ,is there a repair for this problem? (1 answer)
Already changed fuel pump and filter.the plugs,and fuel injection connecters they were bare wire that stopped the back fire. It starts right up don't have to toutch thgas