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2003 Mercury Marauder Base 4dr Sedan

2003 Mercury Marauder
Trim Info:
Rear Wheel Drive, 4 Door Sedan, Large
17 mpg city / 23 mpg hwy
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March 31, 2012, 7:27 am

Charles C

Question: Whats wrong with my marauder

03 merc marauder starts but durning normal driving the dash board components start going crazy( needels dancing battery and check engine lights on and alarm lights flashing rapidly ) all while driving we replaced the computer checked the grounds ect. After replacing computer car ran perfect for 3 days now it's back at the shop

April 4, 2012, 4:19 pm

Ron W
Expert Mechanic

Check the charging system for an AC voltage. It may be that one of the diodes in the alternator has failed and the leaking AC voltage is why the computer failed.

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