94 ford f150 5.0 fuse 9 (pcm) and pcm relay popping

10

Asked by Luis Dec 17, 2014 at 12:59 PM about the 1994 Ford F-150 XLT 4WD LB

Question type: Maintenance & Repair

I have a 94 ford f150 with the 5.0 in it and it
keeps popping the pcm fuse underhood
and and burn out the relay then stalls out
and wont start unless replaced and it has a
new computer also replaced the
transmission connector that the wires were
stripped on new iac valve new tps

3 Answers
73,320

OJ answered 9 years ago

The PCM is an electronic device very susceptible to overload, even a small one. The blown fuse and burning out of the relay would seem to indicate a short or excessive voltage being applied through the circuit. You'll need a wiring diagram unique to your vehicle and specifications for output voltage/ground/ testing procedures.

Best Answer Mark helpful
10

Luis answered 9 years ago

Tha ks for thwe not helpful advise thank you for telling me exactly what i knew

1 people found this helpful.
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