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How do you check the motor ground wire on a 94 Mercury Marquiis
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Holland     Reply with quote
How do you check the motor ground wire on a 94 Mercury Marquiis
Dragon     Reply with quote
what problems are you having?? you can use a set of jumper cables hook one end to the motor and one to the frame or body depending on which ground you suspect is bad
Cat     Reply with quote
The battery ground is bolted to the engine and to the negative post on the battery.The connection must be clean (no rust, corrosion)and tightly secured.The computer grounds are also hooked to the engine.If you are having a no start or no starter activity you should charge the battery first.Then have a auto store do a load test to determine if it is still good or not.
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