Question about Mercury Grand Marquis

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How do I replace the negative battery cable on a 1989 mercury grand marquis. The new replace ment cable I bought has a built on head with no way to connect the ground wire to the frame

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Usually you will need to cut the cable to the appropriate length.

The end that goes on the battery is already there, but you will need
to measure and cut the cable to the correct length, and crimp on an
eyelet to put a bolt through. This is simple and will ground your battery.


Posted on Oct 13, 2010


Your always better to buy battery cables from a dealer.
That way they fit
You wno't get the correct NEG Cable with the small ground wire at the parts store. Dealer

Posted on Oct 12, 2010


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1 Answer

I have a 1987 mercury grand marquis with v8 my alt is new my battery is new and my battery keeps going died what wrong help

A lot of alternatives even though they are new can be no good, remove the negative battery cable, if the car continues to run, you have a bad alternator

If you need further help, I’m available over the phone at

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Car was running, electrical wire burning smell, starter makes grinding noise, with the car running, stop the car, starter keeps making grinding noise, with the car turned off, ABS and trac control

You have the polarity of the battery backward somewhere. Did you replace the starter and hook it up backwards. Difficult but possible. Check your positive and negative on the battery itself.

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You may have a bad connection where the battery grounds to the frame and/or engine. Check the cable running from the negative battery post to where it bolts to the car. It should be clean and very tight - no corrosion. If you can see the connection, watch it while someone tries to engage the starter. See if it sparks, or starts to smoke or glow a dull red. If so, the connection needs to be cleaned up very well.

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When I try to start the car (86 Grand Marquis) it won't turn over. I can see that the engine moves just a speck every time I click to "start" but wont continue turning. Could this just be the...

Is it just clicking, like the battery is dead? Will it turn over fast, with the spark plugs removed?
I would try using jumper cables, and try giving the starter a better ground -. Clamp to starter housing and negative side of battery. (NOT + TERMINAL) .
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I bumped my neighbors 1989 merc grand marquis. Totally demolished passenger side tailight cover (the red thing). Need replacement

mcdevito75 here, Check your local junk yard, other thann that you can check ebay or you may have to go to the dealer Ford for a brand new lens, (RED)

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You may have a bad switch or a wiring issue

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check out the ground and the fuseline its the cable coming out by the battery by the firewall also try this website

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look for * for page with lowest price. good luck

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