Isuzu Problems

RepairPal has identified the most common problems with the Isuzu as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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119
Known Problems

A ticking noise may be noted from the engine valve train area. This is commonly caused by varnish build up in the hydraulic lash adjusters (HLA). Our technicians tell us that using Mobil 1 synthetic oil has been successful in cleaning the varnish deposits and quieting the lifter noise.

The check transmission light may illuminate with a stored code 37. This is commonly caused by electrical interference on the data communication circuit between the transmission control module (TCM) and the engine control module (ECM). Our technicians recommend that all related connection and ground locations should be inspected and repaired as necessary. In some cases electromagnetic interference may be the cause, shielding of the affected wiring may be of help it this case.

The fuel level sensor may fail resulting in erratic fuel gauge operation and illumination of the Check Engine Light. Replacement of the fuel sender assembly is recommended to correct this concern. A powertrain control module (PCM) software update may be necessary for the updated fuel level sensor to read correctly.

The anti-lock brake system (ABS) warning light may illuminate due to a damaged wire harness near one or both of the front wheel speed sensors. Repairing the damaged wiring will be necessary to correct this concern.

 

The fuel level sensor may fail resulting in erratic reading of the fuel gauge. Sensor replacement is generally required to correct this concern.

Lack of oil changes can cause the piston rings to become clogged with debris resulting in excess oil consumption. Severe engine damage may result if the oil level gets to low. Engine dis-assembly may be required to clean or replace the piston rings. Our technicians recommend proper maintenance to try and avoid this expensive repair.

A rough idle may develop which may or may not cause the Check Engine Light to come on. This issue is commonly caused by a failed intake manifold gasket which will require replacement.

On some models the powertrain control module (PCM) software delays idle speed changes during cold starts causing stalling problems. A software update is available to repair this issue.

Certain models can get a brake squeal at the end of a stop due to the front brake pads leaving a film on the brake rotors. Replacing the brake pads and turning the rotors will fix this issue.

On some models the rear wire harness for the Anti-lock brake system (ABS) can fatigue and break causing the ABS light to come on. Replacing the harness with a new updated harness should repair this problem.

The automatic transmission accumulator cover can leak due to a failed o-ring. Replacing the o-ring and cover will commonly correct this issue.

On the V-6 engine, oil in the spark plug tubes can cause a misfire. Resealing the tubes as part of replacement of the valve cover gasket and replacing the spark plug wires will commonly repair this issue. On newer models the misfire can result in illumination of the Check Engine Light.

A worn vehicle speed sensor driven gear can cause the speedometer not to work. Replacing the worn out speed sensor should correct this concern.

There is an issue where the transmission can have a torque converter problem, or the computer monitoring the torque converter can misinterpret the information, and in either case this can cause the Check Engine Light (MIL) to illuminate. The problem will need to be diagnosed and depending upon what is causing the issue, the transmission will have to be repaired or the computer replaced.