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O3 EXPLORER 4.0 K MOTOR WHAT ACTIVATES POWER RELAY? NO CRANK…

Customer Question
HELLO MY NAME IS*****...

HELLO MY NAME IS***** 4.0 K MOTOR WHAT ACTIVATES POWER RELAY?

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

NO CRANK NO COMPUTER POWER JUMP POWER RELAY RUNS FINE

Submitted: 2 years ago.Category: Ford
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Answered in 22 minutes by:
2/27/2016
Ford Mechanic: Scott W., Ford Technician replied 2 years ago
Scott W.
Scott W., Ford Technician
Category: Ford
Satisfied Customers: 3,593
Experience: 28 yrs. experience as Ford ASE Master Technician. Accolades include being a 2005 Ford PTS Regional Finalist and 2006 ASE Ford National Technician.
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Hello my name is Scott

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Ford Mechanic: Scott W., Ford Technician replied 2 years ago

Here is the power for PCM relay, the relay is fused in power distribution box under the hood, the power comes from the ignition switch, hot in start and run.

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Ford Mechanic: Scott W., Ford Technician replied 2 years ago

.

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Ford Mechanic: Scott W., Ford Technician replied 2 years ago

.

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Ford Mechanic: Scott W., Ford Technician replied 2 years ago

.

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Ford Mechanic: Scott W., Ford Technician replied 2 years ago

The power originates from the ignition switch from red and green wire, then to fuse panel under hood, then to PCM relay. Here are all the diagrams, you have to trace the power from the relay back throught the pictures by using the letters with arrows on them. I have seen more problems at the fuse box under the hood than anywhere else, but it could be a open wire from the igntion anywhere to the PCM relay. Any more questions just ask, thanks Scott

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Ford Mechanic: Scott W., Ford Technician replied 2 years ago

Please take the time to rate my help as this is how I am paid. Thank you

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Scott W.
Scott W.
Scott W., Ford Technician
Category: Ford
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Experience: 28 yrs. experience as Ford ASE Master Technician. Accolades include being a 2005 Ford PTS Regional Finalist and 2006 ASE Ford National Technician.

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