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Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: Ford
Satisfied Customers: 15404
Experience:  30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
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2000 FORD F550 DIESEL ,HOW DO I DETERMINE IF I HAVE A BAD

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2000 FORD F550 DIESEL ,HOW DO I DETERMINE IF I HAVE A BAD PCM?

Hi, my name is ***** ***** problems are you having?

Customer: replied 6 months ago.

Hard to start,runs really rough after a while it runs good it has a check engine light on as soon as it goes of it runs great.I drive it for about 10 miles it losses power and cuts off,I can shut it off for 4 or 5 mins and it runs fine for short time and does it again

have you pulled codes from the computer yet?

Customer: replied 6 months ago.

The pcm won't let me commuinicate and I got a code,b1342 came from my scannING of the bcm and from my interpretation it may need a pcm?

Then Yes, the computer is most likely bad, you need to check all powers and grounds at the PCM, if it has all of them, then it can only be a bad PCM,Tim

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