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1994 Mercury Topaz Problems

Find the most common issues based on 1994 Mercury Topaz owner complaints.
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Most Common 1994 Mercury Topaz Problems

Fuel pump failure can cause the engine to crank but fail to start. Diagnosis will show insufficient, or no fuel pressure, and fuel pump in the fuel tank will need to be replaced.
The vehicle may lose vehicle speed signal, which can affect speedometer operation and transmission shift quality. Most often the Vehicle Speed Sensor is faulty, however, at times, the driven gear ...
If the throttle lever is out of adjustment, or the grommets are missing / broken at the throttle or transmission, the automatic transmission can shift hard. Replace the grommets as needed and adjus...
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0 Known 1994 Mercury Topaz Brakes Problems

2 Known 1994 Mercury Topaz Drive Train Problems

The vehicle may lose vehicle speed signal, which can affect speedometer operation and transmission shift quality. Most often the Vehicle Speed Sensor is faulty, however, at times, the driven gear ...
If the throttle lever is out of adjustment, or the grommets are missing / broken at the throttle or transmission, the automatic transmission can shift hard. Replace the grommets as needed and adjus...

1 Known 1994 Mercury Topaz Electrical & Lights Problem

The horn may not work sometimes. A higher than appropriate horn voltage can cause switch damage and a relay kit should be installed to moderate voltage and maintain functionality.

8 Known 1994 Mercury Topaz Engine Problems

Fuel pump failure can cause the engine to crank but fail to start. Diagnosis will show insufficient, or no fuel pressure, and fuel pump in the fuel tank will need to be replaced.
Poor rubber material used in the motor mounts can cause them to fail, leading to a knocking noise or lifting sensation on acceleration. The motor mounts will need to be replaced with revised parts.
A faulty Thick Film Ignition (TFI) module and stator can cause the engine to stall, and the engine may crank but not start. Replace the TFI module and stator at the distributor if diagnosis shows...

1 Known 1994 Mercury Topaz Exhaust & Emissions Problem

If a buzzing noise is coming from the exhaust at different engine speeds and conditions, this is commonly caused by the heat shields on catalytic converters coming loose at points. The buzzing is...

2 Known 1994 Mercury Topaz Heating & Air Conditioning Problems

Internal heater blower motor issues can cause a ticking noise from the heater blower when the fan is on. To correct this concern, replace the heater blower motor with a revised unit.
O-rings in the quick connect fittings commonly allow refrigerant to leak from the AC System. The o-rings at system quick connect fittings should be replaced.

0 Known 1994 Mercury Topaz Maintenance Problems

0 Known 1994 Mercury Topaz Miscellaneous Problems

0 Known 1994 Mercury Topaz Suspension & Steering Problems

14
Known 1994 Mercury Topaz Problems & Complaints

If the throttle lever is out of adjustment, or the grommets are missing / broken at the throttle or transmission, the automatic transmission can shift hard. Replace the grommets as needed and adjus...
If a buzzing noise is coming from the exhaust at different engine speeds and conditions, this is commonly caused by the heat shields on catalytic converters coming loose at points. The buzzing is...
The horn may not work sometimes. A higher than appropriate horn voltage can cause switch damage and a relay kit should be installed to moderate voltage and maintain functionality.
Internal heater blower motor issues can cause a ticking noise from the heater blower when the fan is on. To correct this concern, replace the heater blower motor with a revised unit.
O-rings in the quick connect fittings commonly allow refrigerant to leak from the AC System. The o-rings at system quick connect fittings should be replaced.
The vehicle may lose vehicle speed signal, which can affect speedometer operation and transmission shift quality. Most often the Vehicle Speed Sensor is faulty, however, at times, the driven gear ...
Pressure issues between engine and air cleaner can cause oil to collect in the air cleaner box. The PCV valve will need to be replaced.
Poor rubber material used in the motor mounts can cause them to fail, leading to a knocking noise or lifting sensation on acceleration. The motor mounts will need to be replaced with revised parts.
A defective crankshaft pulley can cause a clicking, or clanging noise from the engine when it is running. The center hub can become loose and the pulley should be replaced with the revised design.
Outdated software in the engine control processor can cause poor engine performance, hesitation on acceleration, and possible stalling problems. The processor will need to be replaced to get the ...
Poor engine running at idle, stalling, and possible codes in computer for rich fuel running can be caused by a ruptured fuel pressure regulator.
A faulty Thick Film Ignition (TFI) module and stator can cause the engine to stall, and the engine may crank but not start. Replace the TFI module and stator at the distributor if diagnosis shows...
Fuel pump failure can cause the engine to crank but fail to start. Diagnosis will show insufficient, or no fuel pressure, and fuel pump in the fuel tank will need to be replaced.
Sludge build up in the throttle body can cause a poor engine idle, stalling, and/or hesitation. The correction is to install a new idle air control valve spacer kit to prevent the sludge build ...
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