5 Common Problems on the 4th Gen Chevy Truck

Mechanic Showing Common Problems of 4th Gen Chevy Truck

The 4th generation Chevy C/K 1500 truck existed from 1998 to 2002 and veered off into the 1st gen Chevy Silverado line for the 1999 model year. While it lasted for a long time for good reasons, it also ran into common problems. Here’s a list of 5 common problems of the 4th gen Chevy truck.

Fix your 4th gen Chevy truck yourself with quality auto parts at 1aauto.com

Top 5 Problems on the 4th Gen Chevy Truck (1988 to 2002)

1. Windshield Wiper Problems

Wiper board on a 4th gen Chevy truck

Symptoms of Windshield Wiper Problems on the 4th Gen Chevy Truck

  • Windshield wipers don’t work
  • Wipers don’t work at the set settings
  • Windshield wipers won’t shut off

Causes of a Windshield Wiper Problems

The wiper board controls the speed of the wiper motor. Sometimes this board can fail on the 4th gen Chevy truck.

How to Fix a Bad Wiper Board

The wiper board is located under the hood on the firewall. You might be able to replace the wiper board separately. We recommend replacing both the wiper board and the wiper motor.

2. Body and Chassis Grounds

Broken ground (left) on the frame of the truck
Broken ground (left) on the frame of the truck

Symptoms of Bad Body and Chassis Grounds

There may be no immediate or apparent symptoms of bad body or chassis grounds on the 4th gen Chevy truck, but there may be odd electrical problems like the engine not starting or the dash lights flickering.

Causes of Bad Body and Chassis Grounds

The grounds tend to break and corrode, and this can cause electricity to ground at other parts like the bolts. While this can work temporarily, over time it can cause issues with electrical components.

How to Fix Body and Chassis Grounds

Repair the ground strap by installing a new ground strap close to the area on the backside of the engine and installing the wire to the chassis. Generally, there’s a ground from the chassis to the cabin and also from the cabin to the motor.

3. Door Pins and Bushings

Door hinge pin on a 4th gen Chevy truck
Door hinge pin on a 4th gen Chevy truck

Symptoms of Bad Door Pins and Bushings

  • When opening the door, the door may sag

Causes of Bad Door Pins and Bushings

The doors can sag on the C/K 1500 truck when the pins and bushings wear out.

How to Fix Door Pins and Bushings

The pins and bushings are in the door jamb. To replace the bushings, the spring will need to be removed from the door check. A special compressor tool is needed to reinstall the spring. The steps include having an assistant hold the door or place a floor jack underneath the door to support it, and then popping the pins and bushings out with a chisel and a hammer.

4. Engine Oil Leaks

Symptoms of Engine Oil Leaks

Oil leaks on the ground

Causes of Oil Leaks

As vehicles age, it’s common for parts to corrode and wear over time and leak, like the oil pan gasket. A lot of 4th gen Chevy trucks have an oil filter adapter that can leak.

How to Fix Engine Oil Leaks

Remove the oil filter adapter and remove the o-ring and the gasket on the top. If the vehicle has oil cooler lines, these will also have to be disconnected.

5. Tail Light Problems

Symptoms of Tail Light Problems on the 4th Gen Chevy Truck

  • Bulb not working after being replaced

Causes of Bad Tail Light Boards

The tail lights on the 1998 to 2002 Chevy C/K trucks have electrical circuit boards the bulbs attach to that can overheat and fail. Sometimes the tail light bulb may not work after being replaced. This is because the circuit board has most likely failed.

How to Fix Bad Tail Light Boards

Inspect the circuit board for burning, which is a definite sign it has failed. Replace the circuit board if it has failed.

Replace These and Other Parts Yourself

Complete these and many more repairs on the 1988 to 2002 Chevy truck, also known as the GMT 400 truck, with how-to videos in 1A Auto’s video library

Shop 4th Gen (1988-2002) Chevy/GMC C/K Truck Parts

Related Content

4th Generation Chevy Truck Model Years

  • C1500 – 1/2 Ton (1988-1999)
  • C2500 – 3/4 Ton (1988-2000)
  • C3500 – 1 Ton (1988-2002)
  • K1500 – 1/2 Ton (1988-1999)
  • K2500 – 3/4 Ton (1988-2000)
  • K3500 – 1 Ton (1988-2000)
Summary
4th Gen Chevy Truck Problems | Chevy C/K Trucks (1988-2002)
Article Name
4th Gen Chevy Truck Problems | Chevy C/K Trucks (1988-2002)
Description
Find out the top problems on the 4th gen Chevy truck, also known as the C/K truck and the GMT 400, such as windshield wiper and tail light problems.
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Publisher Name
1A Auto
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