1997 Chevrolet K20 problems

General information about Chevrolet-K20
Overview of popular issues

The third generation of the C/K series is a range of trucks that was manufactured by General Motors from the 1973 to 1991 model years. Serving as the replacement for the "Action Line" C/K trucks, GM designated the generation under "Rounded Line" moniker. Again offered as a two-door pickup truck and chassis cab, the Rounded Line trucks marked the introduction of a four-door cab configuration.

Marketed under the Chevrolet and GMC brands, the Rounded Line C/K chassis also served as the basis of GM full-size SUVs, including the Chevrolet/GMC Suburban wagon and the off-road oriented Chevrolet K5 Blazer/GMC Jimmy. The generation also shared body commonality with GM medium-duty commercial trucks.

In early 1987, GM introduced the 1988 fourth-generation C/K to replace the Rounded Line generation, with the company beginning a multi-year transition between the two generations. To eliminate model overlap, the Rounded Line C/K was renamed the R/V series, which remained as a basis for full-size SUVs and heavier-duty pickup trucks. After an 18-year production run (exceeded only in longevity by the Dodge D/W-series/Ram pickup and the Jeep Gladiator/Pickup), the Rounded Line generation was retired after the 1991 model year.

From 1972 to 1991, General Motors produced the Rounded Line C/K (later R/V) series in multiple facilities across the United States and Canada. In South America, the model line was produced in Argentina and Brazil, ending in 1997.

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Common 1997 Chevrolet K20 problems

The Chevrolet K20 1997 has been reported to have several common problems, primarily related to the fuel system, ignition system, and electrical components.

Fuel Pump Failure: The fuel pump is a common issue in these vehicles, with many owners reporting that their trucks crank but do not start. This problem can be diagnosed by checking the fuel pressure at the Schrader valve, which should be around 40-60 psi. If the pressure is low, it may indicate that the fuel pump is failing or that there is a problem with the fuel filter or fuel pressure regulator.
Ignition System Problems: Ignition system issues can also cause the truck to crank but not start. This can be due to a faulty ignition coil, distributor cap, rotor, or spark plugs. A visual inspection of these components can help identify any damage or wear. Additionally, checking for spark at each cylinder can help diagnose any issues with the ignition system.
Neutral Safety Switch: The neutral safety switch is another common problem in these vehicles. This switch prevents the truck from starting unless the transmission is in park or neutral. If the switch is faulty, it can prevent the truck from starting, even if the transmission is in the correct position. A circuit voltage tester pen can be used to check the switch for power and ground signals.
Coolant Temperature Sensor: A faulty coolant temperature sensor can cause the engine to flood, preventing the truck from starting. This sensor tells the computer the temperature of the engine, and if it fails, it can cause the computer to dump too much fuel into the engine, flooding it out. Replacing the sensor can fix this issue.
Steering Wheel Position Sensor: The steering wheel position sensor can also cause problems in these vehicles. If the sensor fails, it can cause a service stability message to appear, indicating that the truck's stability control system is not functioning properly. Replacing the sensor should fix this issue.
Windshield Wiper Motor Component Failure: The windshield wiper motor can fail, causing the wipers to stop working intermittently. This issue can be diagnosed by checking for a recall on the vehicle, as some models have been recalled for this problem. If there is no recall, the wiper motor control board may need to be replaced.
Intake Manifold Gasket Leaks: The intake manifold gaskets can leak, causing coolant or oil leaks. This issue can be diagnosed by checking for leaks around the intake manifold. Replacing the gaskets can fix this issue, but it can be a complex and expensive repair.
Secondary Air Injection Valves: The secondary air injection valves can become restricted, causing reduced airflow and causing the check engine light to come on. Replacing the check valves can fix this issue.
Idle Air Control (IAC) Valve: The IAC valve can become stuck, causing the engine to idle too high or too low. This issue can be diagnosed by checking the throttle stop screw and the IAC valve for proper operation.

In summary, the Chevrolet K20 1997 has several common problems related to the fuel system, ignition system, and electrical components. These issues can be diagnosed and repaired with the proper tools and knowledge. Regular maintenance and inspections can help prevent these issues from occurring and ensure the longevity of the vehicle.

1997 Chevrolet K20 complaints

The NHTSA has received 0 complaints about various vehicle components related to the 1997 Chevrolet K20.

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Additional sources

More sources of information about 1997 Chevrolet K20 problems:

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