1978 Gmc C15 problems
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.
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Common 1978 Gmc C15 problems
Based on complaints from owners of the GMC C15 1978, common problems with this car include:
- Choke Problems:
- Owners have reported issues with the choke not opening properly, affecting engine performance. This problem can be related to the vacuum choke pulloff not functioning correctly, leading to the choke tube not getting hot enough to open. It is essential to check the vacuum choke pulloff, ensure proper vacuum through the tube, and inspect for any blockages in the tube or intake crossover that may prevent the choke from opening effectively.
- Rust in Choke Tubes:
- Some owners have experienced rust-related issues in the choke tubes, which can impact the functionality of the choke system. Despite severe rust in the tubes, the choke may still operate adequately due to the heat generated by the engine. However, addressing rust in the choke tubes is crucial to prevent potential long-term problems with the choke mechanism.
These problems with the GMC C15 1978 can significantly impact the car's performance and reliability. Owners facing these issues should consider thorough inspections and necessary repairs to ensure optimal functioning of the vehicle.
1978 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:
- Power train problems
The graph below shows statistics for all 1978 Gmc C15 vehicle components and the number of complaints received.
1978 Gmc C15 complaints
The NHTSA has received 1 complaints about various vehicle components related to the 1978 Gmc C15.
POWER TRAIN PROBLEM
- Date Of Incident: 1996-08-11
- VIN: 3B7MC33CBSM
- Components: POWER TRAIN
- Summary: TRANSMISSION FAILS TO SHIFT PROPERLY WHILE TOWING TRAILER, ALSO STICKS IN OVERDRIVE.
1978 Gmc C15 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 1 recalls for different components of the 1978 Gmc C15.
- Manufacturer: GENERAL MOTORS CORP.
- Components: EQUIPMENT:MECHANICAL:CARRIER/RACK
- Summary: THE NUT ON THE CARRIER SUPPORT BOLT ASSEMBLY MAY BREAK WHICH WOULD ALLOW THE ENTIRE WHEEL AND TIRE ASSEMBLY TO SEPARATE FROM THE VEHICLE.
- Remedy: DEALER WILL REPLACE THE TIRE AND WHEEL CARRIER BOLT ASSEMBLY AT NO CHARGE.
Other years of Gmc C15
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