ALTERNATOR WIRING PROBLEMS

40

Asked by May 14, 2015 at 10:13 PM about the 1989 Mercury Grand Marquis LS Sedan RWD

Question type: Maintenance & Repair

I have an 1989 grand marquis and the is a short in one of the alternator wires. the green wire is the problem it doesn't hold any electrical current and is not recharging the battery If you put an electrical current directly it resumes to charge the batter. does anyone have a solution or a blue print for the wires so I could change them myself or have someone else do it. thank you for the help in advance.

10 Answers

118,495

Does your ALT light turn on when you just turn on the key?

1 people found this helpful.
40

no light dashboard lights once the car is running but when I turn the key with out running the engine the only lights one the dash are the engine, check engine and battery.

3 people found this helpful.
118,495

Do a search for 89 Mercury grand marquis alternator wiring pictures, scroll to diagram 11 , it shows both 65 and 100 amp units. It shows 3 fuse links that powers those circuits.

5 people found this helpful.
40

I tried doing a search but I cannot locate the diagram you are talking about.

1 people found this helpful.
118,495

http://repairguide.autozone.com/znetrgs/repair_guide_content/en_us/imag es/0900c152/80/1e/4c/28/large/0900c152801e4c28.gif

40

its not letting me look it up. all I get is a grey page or big with other searches. is there any way I can find the diagram.

118,495

Here

How do you replace/fix it

118,495

Erick this thread is a year old try starting a new thread with your question. Usually it is just a burned out charge lamp or a blown fuselink' simple replacement.

1 people found this helpful.

https://www.cargurus.com/Cars/Discussion-t7969_ds792007 If your not busy may you please look at the thread.

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