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1999 Mercury Mountaineer Problems

Find the most common issues based on 1999 Mercury Mountaineer owner complaints.

Most Common 1999 Mercury Mountaineer Problems

A failed heater blend door or actuator can cause the temperature control for the HVAC system to stop working. A clicking sound from the dash area would commonly indicate an actuator fault. If the h...
The Mercury Mountaineer 4.6L V8 model is known for engine overheating, even with normal use, and a coolant leak from the front of the manifold. This will often trigger the check engine light and lo...
A rattling noise from the engine may indicate that the timing chain cassette is worn. Our technicians tell us that installing an updated cassette and timing chain tensioner should correct this conc...
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1 Known 1999 Mercury Mountaineer Brakes Problem

4wd vehicles may develop a squealing noise coming from the front wheels when driving below 30 mph. This is generally caused by dry excluder seals, lubricating the seals will commonly correct this c...

0 Known 1999 Mercury Mountaineer Drive Train Problems

1 Known 1999 Mercury Mountaineer Electrical & Lights Problem

The Mercury Mountaineer 4.6L V8 model is known for engine overheating, even with normal use, and a coolant leak from the front of the manifold. This will often trigger the check engine light and lo...

3 Known 1999 Mercury Mountaineer Engine Problems

A rattling noise from the engine may indicate that the timing chain cassette is worn. Our technicians tell us that installing an updated cassette and timing chain tensioner should correct this conc...
The intake manifold O-ring gaskets commonly leak, causing stalling and poor idle quality; the Check Engine Light will illuminate.
The Check Engine Light will illuminate and the engine will idle roughly when cold. There are updated upper intake manifold gaskets to resolve the problem.

0 Known 1999 Mercury Mountaineer Exhaust & Emissions Problems

1 Known 1999 Mercury Mountaineer Heating & Air Conditioning Problem

A failed heater blend door or actuator can cause the temperature control for the HVAC system to stop working. A clicking sound from the dash area would commonly indicate an actuator fault. If the h...

1 Known 1999 Mercury Mountaineer Maintenance Problem

2 Known 1999 Mercury Mountaineer Miscellaneous Problems

The rear wiper may stop working. This could be due to a rear wiper motor that has failed requiring replacement.
The rear window wiper may not fully contact the rear window. To fix, replacement of both the wiper blade and wiper arm is necessary.

0 Known 1999 Mercury Mountaineer Suspension & Steering Problems

9
Known 1999 Mercury Mountaineer Problems & Complaints

A failed heater blend door or actuator can cause the temperature control for the HVAC system to stop working. A clicking sound from the dash area would commonly indicate an actuator fault. If the h...
A rattling noise from the engine may indicate that the timing chain cassette is worn. Our technicians tell us that installing an updated cassette and timing chain tensioner should correct this conc...
The intake manifold O-ring gaskets commonly leak, causing stalling and poor idle quality; the Check Engine Light will illuminate.
The Check Engine Light will illuminate and the engine will idle roughly when cold. There are updated upper intake manifold gaskets to resolve the problem.
The Mercury Mountaineer 4.6L V8 model is known for engine overheating, even with normal use, and a coolant leak from the front of the manifold. This will often trigger the check engine light and lo...
4wd vehicles may develop a squealing noise coming from the front wheels when driving below 30 mph. This is generally caused by dry excluder seals, lubricating the seals will commonly correct this c...
The rear wiper may stop working. This could be due to a rear wiper motor that has failed requiring replacement.
The rear window wiper may not fully contact the rear window. To fix, replacement of both the wiper blade and wiper arm is necessary.
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