Have done everythingj/1988f150 351 windsor/startes runs and then wont start/ have almost did ever t hing new. Need help bad!!!!

Asked by Sep 04, 2016 at 11:32 PM about the 1988 Ford F-150 STD Extended Cab LB

Question type: Maintenance & Repair

Dropped fuel tanks/map sensor/new fuel pumps /fuel filter/new distribusor
/plugs /wires/injection coil moldule/no vacumn
leaks/alternator/solenoid/checked neutral safety swicth/ran. codes thru
eec/note gets engine hot thru hoses quick! Puzzled I do no it needs timing to
be put perfectp. Bottom line starts ok runs 5 to 10 mintures ok. Then stops
and wont crank afer seats for long period of time. 351 windsor efi 1988

2 Answers

18,330

Not familiar with your particular model, but had a hopped up V8 in a Ford Torino back in the 70's. Would run for a while then die. Would not restart until it cooled off. Turned out being the ignition module box bolted to the fender well. Thinner than a cigar box, and just a little smaller. Had cooling fins on it for cooling. Mechanic told me when it failed, to pour cool water over it. If it restarted, change the module. That is what it was. Obviously something electronic, susceptible to heat.

6,525

Terminology is very critical here, when u say it doesn't crank, module has nothing to do at this point. does it turn over but it doesn't run or doesn't crank at all like a dead battery?

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