Question about 2003 Mercury Grand Marquis

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Replaced alternator & battery won't start

Replaced alternator & battery won't start

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  • 44 Answers

CHECK BATTERY GROUND AND CABLE TO STARTER ALSO CHECK STARTER WATER IS BAD ON STARTERS AND GET WET AND SHORT OUT MEASY GOOD LUCK

Posted on Jul 14, 2013

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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skychief2001
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SOURCE: 99 sable won't start, replaced battery,starter,alternator, but still wont even crank. code reader also said map sensor so it was reset worked for alittle but now nothing

If the car does not have a security system, I would check for voltage at the starter from the battery and from the key switch.
The power from the key switch goes thru the neutral safety switch before getting to the starter.

Posted on Sep 08, 2012

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did they run a test on the alternator!! at battery when off should be at least 12.6 volts, less than 12 volts battery is bad. when running at battery voltage should be at least 14.1 to 14.7, thats if alternator is ok. if less than above replace alternator. if alt. is ok, could be a bad battery.

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CHECK ALTERNATOR 175 AMP MEGA FUSE. AND CHECK ALTERNATOR 20 AMP INLINE FUSE.IF FUSES OKAY.REPLACE BATTERY CABLES AND CHECK ALTERNATOR BATTERY FEED WIRE AND VOLTAGE REGULATOR WIRES FOR DAMAGE.AND CHECK DRIVE TENSION.MAKE SURE DRIVE BELT NOT DAMAGE OR SLIPPING.

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