1993 GMC Sonoma Repair and Maintenance

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

1993 GMC Sonoma Problems

Engine Running Rich Due to Fuel Leak Inside Intake Manifold

Vehicles using the enhanced vortec V6 engine may be hard to start run poorly and/or use to much fuel due to a fuel leak inside the intake manifold plenum. Commonly this is caused by a leaking fuel pressure regulator or fuel line. The fuel system will need to be pressurized with the upper intake manifold removed in order to determine the exact cause of the leak. Removing the "tuning valve" from the upper intake can allow for limited visual inspection without removing the upper intake manifold.

Distributor Shaft O-Ring Seal May Leak Oil

An engine oil leak may develop from the distributor shaft o-ring seal.

Internal Faults in Distributor Can Cause Engine Problems

The distributor may develop internal faults. This can cause a rough running engine or stalling condition and the Check Engine Light may or may not illuminate. The distributor should be overhauled or replaced to correct this concern.

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1993 GMC Sonoma Questions

Why does my AC only blow on my feet after having the truck in the shop? (1 answer)

While in the shop they replaced my distributor, dist cap, rotor button, coil, plugwires, starter and intake manifold gasket.

Where do you connect a tachometer to check the Revolutions Per Minute at an idle (2 answers)

I have replaced the throttle body and need to verify engine speed

how do you adjust the clutch where is the bleed valve or screw (1 answer)

it doesnt happen a lot i forgot to check the fluid

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1993 GMC Sonoma Recalls

Recall 99V193000
VEHICLE DESCRIPTION: CERTAIN 4-WHEEL DRIVE PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH ABS (ANTILOCK BRAKING SYSTEM) MANUFACTURED FROM SEPTEMBER 1989 THROUGH AUGUST 1996. UNDER CERTAIN DRIVING CONDITIONS THE SWITCH WHICH SIGNALS THE ABS SYSTEM WHETHER THE VEHICLE IS IN 2-WHEEL OR 4-...
Recall 94V093000
SIGNIFICANT WEAR CAN DEVELOP ON THE LOW AND REVERSE CLUTCH PREVENTING THE PARK PAWL FROM ENGAGING. THIS CAN PREVENT A "NO PARK" CONDITION TO OCCUR WHILE THE ENGINE IS RUNNING, CAUSING UNINTENTIONAL MOVEMENT OF THE VEHICLE WITHOUT OPERATOR ACTION. (THE "NO PARK" CONDITION WILL NOT OCCUR WHILE THE ...

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