Question about 1999 Mercury Grand Marquis
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Posted on Jan 02, 2017
Run your tests before you start buying your parts. verify that your fuel pressure is acceptable. a defective fuel pressure reg., clogged fuel filter, tired fuel pump, fuel injector, loose or damaged wiring to the injector or coil, maybe water in the gas or too much fuel cleaner/additive.
Posted on Apr 25, 2009
The fuel rail can stay in place. Loosen the 7mm headed screw that secures the coil pack and loosen and rotate the coil out. The rubber part of the coil allows enough movement to get it around the fuel rail.
Posted on Dec 05, 2009
The best answer that you can get depends on how mechanically inclined you are and how bad your problem is on the car.
If you are lucky, you can buy a A/C gauge and minimum hoses and refill the system at the low pressure fill back by the firewall around the black oblong tank with the hoses on it. You follow the instructions and add Freon until you get a steady pressure in the correct temperature range. Too much is as bad as too little. On Fords, I have replaced the Low pressure switch first and been alright with the remaining Freon.in the system.
If you are not lucky, you may have to add oil to quiet a noisy compressor or you may have a bad electric clutch or leaking hose or component. There is a neat ultraviolet kit with leak detector, uv penlight, and enough juice to do 4 tests. It is available at Autozone. But you still have to fix the problem when you find it.
If your system is open, degassed, and you have to refill it you can rent a Vacuum motor to prime the system , you can do it at Autozone. It takes a significant deposit for the machine and then you get a full refund when you return the machine. Oreillys may have one too.
If you have friends or coworkers, they can tell you about the bad or good places for this service. It is really an unknown. About all you can look at is the Labor cost per hour. Good Luck
Posted on Apr 05, 2010
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