check your timing belt
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.
The most probable cause is that the voltage regulator has failed. The regulator is an integral part of the alternator so you will probably have to replace it.
Bad voltage regulator - not sure whether it is internal to the alternator or a separate unit
Bearing in: Alternator? Water pump? A/C Compressor? Belt tensioner?
the battery could have a dead cell, this could cause it to not charge. Have the battery tested to be sure.
Dead battery? Battery cables in need of cleaning or replacement?
aerodnamics are such that there isn't much airflow past the alternator and high loads cause them to overheat
dead cell in the battery or something is on pulling power from the battery.
"Misfiring" After Installation of a New AlternatorRemoval and replacement of an alternator should not causemisfiring of the engine.Either this is a coincidence, OR whoever changed the alternator inadvertently damaged the ignition wiring system.The "fix" for this problem is to have someone who knows what he/she is doing to fully troubleshoot the ignition system, identify the fault, and properly correct it.
One possible cause is a defective alternator, Have the charging system checked.
Hey Cari==Make sure there is good air flow around and through the alternator. Restrictions from heater hoses around alternators can cause them to overheat and fail. GoodluckJoe
no but they may have broke a wire or disconnected a wire and not hooked it back up
most likely the alternator needs attention cause it is not charging
waddup man my girl has a 95 mercury mystake (mystique) and the same thing happened i replaced two alternators in two days and found out the original one was fine it was a compter in the car (those little electrical harnesses in the engine) and it was corroded so bad it wouldnt keep a charge to the battery and was constantly draining it...
I would say probably not, the reason your battery is weak is I reckon due to a fault with your alternator. It is obviously not producing sufficient power (electricity ) to keep the battery charged. The whining noise is probably caused by worn-out bearings. A replacement or re-conditioned alternator should cure the problem .
Its a sign that either your battery or alternator is starting to fail.
Yes, it could cause flooding, that's when too much fuel gets into the engine. You need to replace the pressure regulator.
No, it will not.
Spark plugs don't smoke. A bad alternator would cause a dead battery.
The alternator is belt driven and so is the water pump but that is where the correlation ends. There is no way a bad alternator could cause a water pump to go bad unless the alternator pulley was warped. Then there is a small chance.
Battery Light OnCheck for bad alternator. alt. is goodbattery is goodchecked fues goodwhat about wiring
The 1996 Mystique has OBDII (On Board Diagnostics Level 2) and requires a command from a "code reader" or OBDII monitor. It can also be shut off by disconnecting the battery for a long enough period of time, apparently - but I have an Auto XRay unit, so I just use that. If the cause is not repaired, the CEL WILL come back on.
A bad alternator will cause a battery to go bad. It does not have an effect on the air conditioner.
Mercury is highly toxic and working with it can cause mercury poisoning.