no spark... just died heading to work....is there and where would the rely be located for the pcm??...the only code pulled was for the coil pack, there are 4 on each ... would it be normal for both to go bad at same time??
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2001 Ford Explorer
Question: pcm relay?
Answer #1DaveJHM June 26, 2011, 22:45Master
The 5.0L V8 in the 2001 Explorer has two coils - each one firing four plugs.
The ignition system / spark is controlled by the PCM.
There is a PCM relay in the battery junction box - the box with fuses and relays near the battery.
The crankshaft sensor is also one to have a look at to make sure it is sending the signal.
ReplyVisitor, June 27, 2011, 14:09
thx dave, i will check for the relay first , the crankshaft sensor tested fine with ohm meter, i pulled the pcm and took to the local ford dealer to have tested....which they said it would have to b on the vehicle to test....again thx for ur input it will help me to better diagnose....any other info would be helpful....
ReplyDaveJHM, June 27, 2011, 21:21Master
The processor will be fine; don't sweat that...very rare there is an issue there.
ReplyCamster, July 09, 2012, 16:17Technician
Does a PCM relay trip at the same time as a fuel pump relay if the fuel pump is faulty?