1997 GMC Suburban 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1997 GMC Suburban 1500
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1997 GMC Suburban 1500 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. The charge light on the dash may or may not illuminate. The alternator may also develop an abnormal noise. A failed alternator will require replacement.
1997 GMC Suburban 1500 Questionswhy is rear drive shaft making a loud popping sound when put in drive/reverse? (1 answer)
its been making this horrible popping for about 3 weeks and getting worse, what is it and how much to fix?
Won't start if left off for more than two days. Once started, starts again first time every time within 2 days. Then won't start unless jumped and gas pumped repeatedly. Battery always checks out good. Dealer says no drain on battery, no codes on computer. Engine runs fine.
Check engine ...
When these stopped working the transmission stopped down shifting. I can manual shift but it takes off in second gear. This happed once before and I only had to restart the truck to fix the problem. But that doesn't work this time. I have been told trans speed sensor or engine module may be...