Asked by May 17, 2019 at 04:14 PM about the 1991 Lincoln Mark VII LSC

Question type: Maintenance & Repair

when cold the car starts and runs fine.  Once up to temp it will suddenly stall
out and will not restart until the next day.  I have installed a new fuel tank,
fuel pump, fuel filter and new fuel lines. Also, I have installed a new ECM.  
When the problem occurs the fuel pump is running and I do have fuel
pressure at the fuel rails although I do not know the pressure.  The last two
times this happened I sprayed some starting fluid in the intake and it did start
.  I some advice. Thank you

1 Answer


Your car has a fuel or electrical problem; really could be either. It could be leaking fuel injectors flooding a hot engine. It could be a bad sensor: crankshaft position, cam position, or maybe even the engine coolant temperature. Might even involve ignition components, such as coil or igniter. Without actually seeing the car, it's not possible to say what the exact problem is. Why don't you take the car to a mechanic to diagnose. Or go to an auto parts store to get codes read and they probably won't charge you for this.

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