Parasitic drain. Look it up on YouTube. You have a circuit pulling more than 50 milliamperes which is draining your battery overnight. There are many videos on YouTube about how to find and fix. There are also videos on how to test alternator. I would do that also.
My guess either bad grounds or possible alt is bad
alternator is 6months old. I put a new battery in but it is weak or dead every day. Am I missing something
1993 Mitsubishi 3000GT SL FWD
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Maintenance & Repair
Mitsubishi 3000gt turn signal problem.
1998 Mitsubishi 3000GT FWD
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Maintenance & Repair
My 1994 Mitsubishi 3000GT spins real quick but will not start
1994 Mitsubishi 3000GT FWD
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Maintenance & Repair
Does anyone know where can i get a ecu for my mitsubishi 3000gt 91 automatic . I veen looking for one on ebay but i cant find one with the same part #.i bought one but it didnt fit even tho its was...
1991 Mitsubishi 3000GT
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Maintenance & Repair
What is the number of a pump relay and the location?
1993 Mitsubishi 3000GT
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Maintenance & Repair
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