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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Known Problems

The heater core may leak coolant, excess coolant loss can result in engine overheating. Our technicians tell us a revised, copper heater is available to replace the original aluminum one.

Some engines may develop an oil leak at the front of the engine, the source is commonly the front crankshaft oil seal. Our technicians tell us a revised front oil seal retainer gasket is available to correct this concern.

The air conditioner may stop working due to icing up of the evaporator, generally caused but a faulty evaporator thermostat. Replacement of the failed evaporator thermostat will be required to correct this concern.

An oil leak may develop from the distributor shaft. Our technicians tell us that affected distributors will require replacement 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.

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 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.

A seal in the 4 cylinder engine around the balance shaft tends to fall out, causing a large oil leak. There is a retaining device available to prevent the seal from falling out, which can be put in place during routine timing belt maintenance.

The front brake rotors can warp and cause a vibration when braking. The rotors will need to be machined or in cases where they are worn to thin, replaced to correct this issue.

Engine oil leaking into the distributor can cause an engine misfire. Replacement of the distributor will be necessary to correct this concern.

The engine block can crack behind the exhaust manifold and cause an oil leak. Depending upon the severity of the crack it can be sealed to stop the leak.

The AC evaporator and/or condenser may develop a ref leak. When leaks in the AC system occur, complete diagnosis is required to determine the source of the leak. Replacement of any leaking part of the AC system will necessary to restore proper operation.

The AC evaporator can collect mold and give a foul smell. The evaporator will have to be disinfected or replaced to repair this issue.


The AC evaporator drain can clog and cause a water leak inside the vehicle, usually on the passenger floor. Cleaning the drain will fix this problem.

A severe engine oil leak may be the result of one or more of the camshaft plugs falling out of the cylinder head. The is most likely to occur in cold climates and is caused by the expansion and contraction of the cylinder head. There is a cam plug retaining kit available to secure new cam plugs in place.