Question about 2001 Mitsubishi Diamante
You have 1 of 2 things:
1. The heater core o-ring has leaked engine coolant down onto the ECM and/or transmission control relay.
2. The wave spring in the F4A51 transmission (assuming you have a V6) has broken and destroyed the pump gears.
Either way, you will have repair bills in excess of the value of the car. These items are 100% the fault of Mitsubishi and they have yet to accept any responsibility for the design flaws. You can sign an online petition related to both - just google them.
Posted on Dec 11, 2009
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Posted on Jan 02, 2017
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