On certain models contamination of the grease on the gas pedal potentiometer causes the Check Engine light (MIL) to come on and may cause a rough idle. The potentiometer will need to be replaced and adjusted to fix this problem.
Problems for specific Isuzu models:
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Most reported Isuzu problems
The 4WD indicator may say on in 2WD mode due to a faulty vacuum solenoid or valve. All 4WD vacuum hoses, solenoids, and valves should be inspected and repaired or replaced as necessary to correct this concern.
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