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1994 Volkswagen Jetta Problems

RepairPal has identified the most common problems with the 1994 Volkswagen Jetta based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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10
Known Problems

Shifting issues due to internal problems in high mileage automatic transmissions can be difficult to resolve without transmission replacement.

The water pump and/or other cooling system may develop a coolant leak. Oil leaking from the  valve cover gasket is also common.

Electrical issues that are difficult to diagnose—and sometimes intermittent—are typically due to ground wiring issues. The most troublesome ground locations are under the battery or at the engine.

Reverse gear failures and noise in the manual transmission models are common.

One or more power windows may fail. Our technicians tell us this is commonly due to a failed window regulator which will require replacement.

Oxygen sensor and coolant temperature sensor failures are common.

Throttle body failure is not uncommon and can lead to shifting issues with the automatic transmission and other drivability concerns.

Poor drivability symptoms—including hard starting—can be caused by coolant temperature sensor and oxygen sensor faults.

Ignition wire breakdown is common, resulting in misfires.

Heater core leaks are common in this model, more so if the wrong anti-freeze/coolant is used in the cooling system.