1993 GMC 3500 Pickup Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1993 GMC 3500 Pickup

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1993 GMC 3500 Pickup Problems

Driveability Problems Due to Internal Distributor Fault

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.

Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

Overheating and/or Coolant Loss Due to Leaking Quick-Connect Fitting

The quick-connect fittings for the heater hoses tend to leak engine coolant. This problem commonly occurs because the metal housing has become brittle, which can break and cause leaks.

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1993 GMC 3500 Pickup Questions

Received code 22 tranny has just been rebuilt .. changed tps still didn't fix it (1 answer)

Truck won't come out of low gear and revs super high rpm between 3.and 4 rpm then sends code

Why wont truck stay in overdrive? (2 answers)

as soon as the truck warms up its shifts out of overdrive and will go back in if you shut the truck off but it will kick out again going down the road as soon as it warms up again

what could be wrong if my truck wont turn over (1 answer)

i ust replaced the starter so what else could it be

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1993 GMC 3500 Pickup Recalls

Seat Recliner Bolts Loosen And Fracture

The seat recliner to seat frame bolts could loosen and fracture, resulting in the seat back reclining unexpectedly while driving. Dealers will remove all foam and fabric sandwiched between the recliner assembly and the seat frame, and will install new attaching bolts tightened to a higher specification free of charge to resolve the concern.

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