1999 Isuzu Rodeo Problems

RepairPal has identified the most common problems with the 1999 Isuzu Rodeo 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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Known Problems

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.


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.

Certain models may have a vibration issue at highway speeds that could be due to uneven tire pressures, tire rim out of specs, wheels out of balance, AC compressor bracket bolts not torqued correctly, misalignment of the steering shaft coupler, improper ride height, or wheel alignment out of adjustment. A qualified technician is needed to sort out these problems and correct them.

Rear axle seal leaks can be cause by a plugged rear differential vent. Replacing the leaking seal and clearing out the vent will fix this problem.

Chattering when cornering can occur when the limited slip differential fluid breaks down. Replacing the fluid will repair this issue.