1990 Gmc C15 problems

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The Chevrolet C/K is a series of trucks that was manufactured by General Motors from the 1960 to 2002 model years. Marketed by both the Chevrolet and GMC divisions, the C/K series encompassed a wide range of vehicles. While most commonly associated with pickup trucks, the model line also included chassis-cab trucks and medium-duty trucks and served as the basis for GM full-size SUVs. Through its entire production, the model line competed directly against the Ford F-Series and the Dodge D series (later the Dodge Ram pickup).

Used for both the model branding and the internal model code, "C" denoted two-wheel drive, while "K" denoted four-wheel drive. Four generations of the C/K series were produced, including the GM monikered second-generation "Action Line" and third-generation "Rounded Line" vehicles (colloquially aka Square-Body trucks). For the fourth-generation (colloquially also known as OBS trucks), Chevrolet kept using the C/K designation while GMC revised its branding, changing to a singular GMC Sierra nameplate (C/K remained as an internal model code).

For South America, the model line was manufactured by General Motors de Argentina from 1960 to 1978, Sevel Argentina from 1986 to 1991, and General Motors Brazil, who produced versions of the model line for Brazil, Argentina, and Chile from 1964 to 2001.

As GM entered the 1990s, the company revised its truck ranges, replacing the medium-duty C/K trucks with the Chevrolet Kodiak/GMC TopKick for 1990. For 1999, GM replaced the fourth-generation C/K pickup trucks with an all-new model line; in line with GMC, Chevrolet dropped the C/K nameplate (in favor of a singular Chevrolet Silverado nameplate). Initially marketed with its successor, the final C/K pickup trucks were produced for the 2000 model year. From 2001 to 2002, the final vehicles of the C/K model line were medium-duty chassis cab trucks.

1990 Gmc C15

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Common 1990 Gmc C15 problems

Based on the information gathered from the sources provided, here is a list of common problems with the GMC C15 1990 based on complaints from owners:

  • Internal Distributor Faults: Some drivers reported internal faults in the distributor, causing issues like squealing noises, rough engine running, or stalling. This problem may require an overhaul or replacement of the internal distributor and is usually noticed around 130,000 miles.
  • Steering Wheel Position Sensor: Owners may experience a service stability message due to a failed steering wheel position sensor, which can occur around 90,000 miles. Replacing the sensor can cost about $200 to $300.
  • Windshield Wiper Motor Component Failure: Models made between 1990 and 1999 may face intermittent issues with the windshield wipers due to a defective wiper motor control board. This problem can be temporarily fixed by tapping on the control box or permanently resolved by replacing the control board.
  • Coolant Leaks or Oil Leaks From Intake Manifold Gaskets: Owners may encounter coolant or oil leaks from the intake manifold gaskets, which can lead to engine performance issues. Addressing this problem may involve repairing or replacing the gaskets to prevent further leaks and maintain engine efficiency.

These common problems with the GMC C15 1990 highlight various issues that owners may face with this vehicle, ranging from electrical and mechanical failures to fluid leaks. Understanding these issues can help owners anticipate and address potential problems to ensure the longevity and reliability of their vehicles.

1990 Gmc C15 engine

1990 Gmc C15 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Gmc C15 problems, we found that the most common problems with these 2023 model year vehicles are:

  • Electrical system problems
  • Service brakes problems
  • Hydraulic problems

The graph below shows statistics for all 1990 Gmc C15 vehicle components and the number of complaints received.

1990 Gmc C15 complaints

The NHTSA has received 2 complaints about various vehicle components related to the 1990 Gmc C15.

1996-06-11

ELECTRICAL SYSTEM PROBLEM

  • Date Of Incident: 1996-05-19
  • Fire: 1
  • VIN: 1GTDC14K91E
  • Components: ELECTRICAL SYSTEM
  • Summary: THE ALTERNATOR FAILED WHILE DRIVING AND CAUSED A FIRE. *AK *NLM
1995-05-10

SERVICE BRAKES, HYDRAULIC PROBLEM

  • Date Of Incident: 1994-06-04
  • Components: SERVICE BRAKES, HYDRAULIC
  • Summary: THREE TIME DURING EMERGENCY BRAKE STOP, BRAKE FAILED, POSSIBLE BOOSTER FAILURE. TT

1990 Gmc C15 recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 1990 Gmc C15.

1990-06-04
  • Manufacturer: GENERAL MOTORS CORP.
  • Components: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES
  • Summary: LOOSE PIVOT BOLT HOLDING THE BRAKE PEDAL TO ITS SUPPORT BRACKET COULD DISENGAGE FROM THE NUT.
  • Consequence: THIS COULD CAUSE LOSS OF BRAKING ACTIVITY THAT COULDRESULT IN A TRUCK CRASH WITHOUT PRIOR WARNING.
  • Remedy: RETORQUE BRAKE PEDAL PIVOT BOLTS TO SPECIFICATIONS TO PREVENT LOOSENING.
1990-01-29
  • Manufacturer: GENERAL MOTORS CORP.
  • Components: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
  • Summary: ON C AND K MODELS, FEED AND OR RETURN FUEL LINES CAN CONTACT THE AUTOMATIC TRANSMISSION SHIFT LINKAGE CORDON SHAFT. IN ADDITION, ON K MODELS LINES MAY ALSO CONTACT FRONT PROPSHAFT. IN EITHER CASE THE FUEL LINES COULD BE DAMAGED RESULTING IN A FUEL LEAK.
  • Consequence: A HOLE COULD BE RUBBED THROUGH THESE FUEL LINES, ALLOWING FUEL LEAKAGE NEAR EXHAUST CROSSOVER PIPE; THIS COULD RESULT IN AN ENGINE COMPARTMENT FIRE THAT COULD SPREAD TO THE PASSENGER COMPARTMENT.
  • Remedy: INSTALL NEWLY DESIGNED FUEL LINE ROUTING BRACKET TO PREVENT CONTACT AND, IF NECESSARY, REPLACE FUEL LINES.
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