1994 Mercury Grand Marquis Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1994 Mercury Grand Marquis
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1994 Mercury Grand Marquis ProblemsThrottle Position Sensors May Fail and Cause Engine Performance Problems
The throttle position sensor (TPS) may fail. Common symptoms of a defective TPS can be rough idle, hard starting, hesitation on acceleration, poor fuel economy, and stalling.
The composite (plastic) intake manifold may crack near the thermostat housing and cause a coolant leak. Ford released an updated manifold that was reinforced to prevent a recurrence. No recall was issued for this problem but Ford did extend the warranty to seven years on some models from the date of purchase.
Transmission problems are common in this model, often as a result of a failed front pump. The pump loses its ability to create hydraulic pressure, which an automatic transmission needs to function. A sign of front pump failure can be a whine type noise.
1994 Mercury Grand Marquis QuestionsAlternator or battery (1 answer)
My car while driving the headlights go out and it feels like the car is going to cut off.... when sitting still does the same thing but I turned it off and the headlights went bright but now my car won't start.... the battery clicks but that's it.... everything still cuts on except the ac...
So recently I bought a used car from a dealership outright. When I first bought it, there were some problems and they thought it was due to a dead battery which would have made a ton of sense. About a week later, it didn't want to start and I was told it was not getting enough fuel and I need...
Interior lights turn off when brakes are applied