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Maybe the chip in the key is defective.
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∙ 14y ago
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Mercury grand marquis will not start?
A bad starter can cause a Mercury Grand Marquis to not start. A bad alternator or a problem with the security system can be the cause for the car not starting.
Why would a 1999 Mercury Grand Marquis start but then stall right away?
Likely the fuel filter is clogged so you need to change it. If you can keep the engine running by pumping throttle a few times at start up, and then it runs, check the filter; cost about $10.00. On My 1999 Mercury Grand Marquis I had to replace the Idle air control valve because it did stay running until it was warm
Your 1999 Mercury Grand Marquis wont catch spark to start.?
Check the ignition coil on the Marquis. Check the crank sensor as well. One of these is probably bad.
Why won't a 1995 Mercury Grand Marquis start?
changed sterring column changed crank sensor and fuel pump
Why does your 1987 Mercury Grand Marquis crank but won't start?
First check spark, if you have, then check the fuel pump for pressure.
What is a B1S1 oxygen sensor?
Bank 1 is the passenger side of the engine in a Mercury Grand Marquis Sensor 1 would be in the exhaust close to the engine before the exhaust enters the catalytic converter ( upstream sensor )
Why would a 1996 mercury marquis not start with a good battery?
Might be you alternator. Happened on my 1997 grand marq a couple of weeks ago
1989 mercury grand marquis will not start it will turn over has fuel to injecter but no spark ignition?
pre-heat spark plug, if this works then replace it.
My 94 mercury grand marquis will not shift into gear after I start the engine Can you help?
If you mean the shifter is locked in park, then check the sensor on the brake pedal. Also, if you just turn the key to the first position, with the engine off, you will be able to put the shifter into neutral and start the engine from there. Then just slip it into reverse or drive.It will still go into park after.
What can cause a 1992 grand marquis not to start after replacing starter battery and solenoid?
Diagnosis: Engine Won't Start or Run Check related link below
Why wont your 1994 grand marquis check engine light come on?
does the light illuminate during start up? If not the lamp is burned out. If it does, then the engine computer is likely at fault.
Why does Engine misfire on cyl 6 1998 merc grand marquis?
Could be a bad coil, plug, or injector. Start with the coil first.
