Why my 1986 Lincoln Mark 7 LSC turn off or stall when it heats up. So I have to wait to it cool down for a hour and it will cut back on with no Problems.

10

Asked by Apr 01, 2015 at 01:26 PM about the 1986 Lincoln Mark VII LSC

Question type: Maintenance & Repair

I change the ignition coil, Mule coil and ignition relay still giving me problems.

6 Answers

63,195

Check the fuel pressure,sounds like fuel pump may be going bad.

1 out of 1 people think this is helpful.
10

Thanks,,,But I really don't think it's my fuel pump b/c when I try starting it I can hear the fuel pump cut on..Anything else you suggest I need to check?

1 out of 1 people think this is helpful.
63,195

Just because you hear pump,does not mean is pumping.

63,195

Sign that it lead,s to bad fuel pump,is when it heat,s up it will stop pumping.

10

Wow! thanks!!

185

From 1984 to 1988, this was a common indication of the TFI (Thin Film Ignition module), mounted on the side of our distributors, failing. Properly replace it and do NOT skip adding the dielectric grease else you'll be in this same situation again shortly thereafter.

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