Mercury Grand Marquis Questions

Unanswered Mercury Grand Marquis Questions

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When I pick up speeds to 80 mph and make a full complete stop it takes off fine but if I don't get it up to 75 or 80 mph first it will pull off and pick up speeds very slow what is the problem?
How do you check the vent controllers and what else may be going wrong?
small oil drops on oil pan and ground.
I bought the car & gas gauge read "full" 320 miles til empty. Well the gallons NEVER change & the miles til empty will start at 320 but once it gets to 270 it will reset back to 320. This morning it actually said 2 ga...
At 34,000 miles, a knock is audible from the right side of the engine only when accelerating. Similar to low octane knock but not quite.
At about 34,700 miles, began to hear a knocking sound when accelerating. Similar to low octane knock sound but likely not. Any ideas?
I think a fuse or flasher or relay but no fuses blown I swiched the horn relay with another and nothing changed.
rear end dropped started car in 5min rear end up drove 20min lite on dash came on is leak fixable;appox cost
Checked the fuses and relay tried switching relay with another one. All fuses are good. Have not checked the heavy duty fuses on drivers inner wheel well.
I have changed out the alternator twice but my battery still won't charge. Any suggestions would be greatly appreciated
Right after exterior and undercarriage car wash for this car, shortly after acquiring it. Checked all the fuses under the dash, all were OK. Baffled at first, checked with place that was installing two new tires. T...
screen where compass located is blank (not lit up)
I went to get rear hangers put on my car at ford dealership because exhaust was dragging. A day after the trac control light started coming on and making the car stall. When I would hit around 35-38 mph the light come...
I put on a new intake manifold on my Grand Marquis GS 4.6 Litre, made sure the wires were right and cranked it up. The engine begins running rough after it has run for a few seconds. OBDII shows no codes after multi...
petal real touchy gains speed slowly can get to speed not safely
p0402 code all tests of dpfe and selenoid are good only vacuum valve does not significantly effect idle when vacuum is applied
Auto will not go into park it goes into reverse. when going into drive there is alot of play within the shifting lever. Have to find neutral to start car. Can I make repair by removing underneath of steering wheel cov...
in the morning i go out and start my car. within a minute it start to idle down then back up then down it contiues this until its warm if i was to drive it before it warms up it would not idle down when i come to ...