Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Pcm relay?

(2001 Ford Explorer)
in Augusta, GA on June 26, 2011
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??
Displaying 1 answers & 3 comments
Popular Answer
on June 26, 2011
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.
on June 27, 2011
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....
on June 27, 2011
The processor will be fine; don't sweat that...very rare there is an issue there.
on July 09, 2012
Does a PCM relay trip at the same time as a fuel pump relay if the fuel pump is faulty?
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
2002 Dream CRUISER automatic just replaced fan motor now it run all the time. THIS IS THE RADIATOR FAN THAT RUNS UNTI...
HELP... MY PROBLEM STARTS WHEN DRIVING. I SEEMS THAT WHEN THE CAR GETS HOT IT WILL JUST SHUT OFF. WHEN THIS IS HAPPEN...
Didn't find what you were looking for?