Question about 1986 Mercury Grand Marquis
Upon acceleration and decelertion it stops and starts up again when cruise speed is reached. Tune up did not help
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Posted on Jan 02, 2017
SOURCE: Car sputters when you accelerate
is the engine lite on? if a misfire shows, and the plugs are new, could be coil or wires. how does it idle? maybe air leak between mass air flow sensor and throttlebody.
Posted on Nov 15, 2008
It sounds like you may have a problem feeding the fuel to your engine, I had the same problem with my 89 RS. All the 1989 model's fuel systems were recalled. I think you may need a new fuel pump. The fuel pump is located inside the gas tank in the rear of the car right under the rear axle. The fuel pump itself isn't too expensive, but with other small parts such as the electrical harness upgrade and fuel filter and the labor you should be looking somewhere in the $500 range. I hope this helps.
Posted on Jan 12, 2009
The blower speed controller is located under the hood on the right or passenger side on the heater housing just to the side of the heater hoses near the very back of the right cylinder head.
Yes that would cause the concern you are having.
Posted on Feb 05, 2009
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