Gmc C6 problems

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The Chevrolet and GMC B series was a series of cowled chassis that were produced by General Motors. Produced across three generations from 1966 to 2003, the model line was a variant of medium-duty trucks marketed under the Chevrolet and GMC nameplates. Initially derived from the medium-duty C/K series, later examples were derived from the GMT530 architecture.

The B-series was constructed as a cowled-chassis design; also known as an incomplete vehicle, all bodywork aft of the firewall was produced by a second-stage manufacturer. While primarily used for school bus applications, General Motors offered the chassis for multiple commercial and specialty uses.

Following 2003 production, the B-series was discontinued as GM concentrated on bus production derived from cutaway cabs. Until its 2009 discontinuation, the medium-duty GMT560 chassis was used for bus applications (only in a cutaway configuration). As of current production, General Motors provides bus chassis for both school bus and commercial bus applications, deriving all production from the light-duty GMT610 (Chevrolet Express/GMC Savana) cutaway van.

photo of Gmc C6 car production

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Gmc C6 model years

gmc c6 1986 photo
C6 1986
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Common Gmc C6 problems

The GMC C6 cars, also known as the Chevrolet Corvette, are known for their powerful engines and high-performance capabilities. However, like any other vehicle, they are not immune to certain issues and problems. Here are some of the common problems with the GMC C6 cars based on complaints from owners of this car:

  • Timing chain faults: Another common problem in the C6 Corvette is timing chain faults. The timing chain is responsible for synchronizing the movement of the crankshaft and the camshaft. When it stretches out or fails, it can cause the engine to run poorly or not at all.
  • Valve guide issues: The valve guides in the C6 Corvette can wear down quickly, especially during high-speed driving. When this happens, it can cause the engine to run poorly or even seize up.
  • Foggy headlights: The exterior headlights of the C6 Corvette can become foggy over time, which can reduce visibility and make it harder to see at night.
  • Fuel system faults: The fuel system in the C6 Corvette can have issues, particularly in the earlier models. Problems with the fuel lines and fuel pump have been reported, which can affect the performance of the engine and cause it to run poorly.
  • Air conditioning and heater faults: The air conditioning and heater systems in the C6 Corvette can also have issues, particularly in the 2012 model. These problems can make it difficult to keep the car at a comfortable temperature.
  • Transmission problems: The 4L60E transmission in the C6 Corvette can have a variety of problems, including slipping, hard shifting, and leaks. These issues can affect the performance of the car and make it difficult to drive.

It is important to note that these problems are not necessarily exclusive to the C6 Corvette and can occur in any vehicle. However, they are some of the most common issues reported by owners of this car. If you are experiencing any of these problems, it is best to consult with a qualified mechanic or dealership to diagnose and repair the issue.

Gmc C6

Percentage distribution of complaints by Gmc C6 years

We have researched Gmc problems and analysed all the complaints filed against Gmc C6 cars and compiled the top 1 most problematic Gmc C6 model years:

Below you can see the percentage distribution of known problems by Gmc C6 model years.

Distribution of the number of complaints by Gmc C6 years

We've also compiled a chart for you with the number of complaints about Volkswagen Jetta cars of certain model years:

Gmc C6 car problems categorized by type of issue

After analysing all complaints related to Gmc C6 , it was concluded that the most common issues with these cars are:

  • Electrical system problems

The graph below shows statistics for all Gmc C6 vehicle components and the number of complaints received.

Distribution of the number of complaints with fire by C6 model years

There were a total of 1 complaints that resulted in a fire. In the graph you can see the distribution of the number of complaints by model year.

The NHTSA has received 1 complaints about various vehicle components related to the Gmc C6 . Below are the 25 most recent complaints reported for Gmc C6 vehicles.

List of Gmc C6 complaints

Gmc C6 1986
  • Date Of Incident: 1998-10-01
  • Date Complaint: 1999-03-17
  • Fire: 1
  • VIN: 1GDE6D1A6GV
  • Components: ELECTRICAL SYSTEM
  • Summary: WHILE DRIVING AT 50 MPH WIRE HARNESS CAUGHT ON FIRE DUE TO A SHORTAGE IN THE ELECTRICAL SYSTEM. CONSUMER PULLED OVER AND WAS ABLE TO PUT OUT THE FIRE. *AK

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