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Scott W.
Scott W., Ford Technician
Category: Ford
Satisfied Customers: 3288
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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2003 6.0 starts run 5-10 secs shuts off.. cmp ckp sensors

Customer Question

2003 6.0 starts run 5-10 secs shuts off.. cmp ckp sensors replaced. ipc replaced... noticed that when it is running no rpms shown on gauge... scan data shows rpms... ficm lpwr 12v vpwr 12v mpwr 48.5... any ideas?
JA: Which particular sensor are you asking about? And have any trouble codes been triggered?
Customer: no codes other than EGR which has been closed and unplugged for years
JA: What is the model of your '03 Ford?
Customer: f350
JA: Are you fixing your F350 yourself? What have you tried so far?
Customer: yes and I answered that already
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 2 months ago.
Category: Ford
Expert:  Scott W. replied 2 months ago.

Hello my name is ***** ***** the vehicle stalls, does it stall like the key is turned off, or does it slowly die and runs for a 1-3 seconds like being choked for fuel? Is there any smoke, if there is what color?

Customer: replied 2 months ago.
acts like key turned off... may sputter a couple of times...If I unplug the ICP sensor it will start and run but with white smoke and raw fuel smell no RPMS shown on gauge then either
Expert:  Scott W. replied 2 months ago.

Is it just the RPM's that don't work or does the cluster go dead?

Customer: replied 2 months ago.
Everything else appears to be operating... when I unplug the ICP I do get the code for open ckt on that and the CEL comes on
but it clears as soon as I reconnect it
Expert:  Scott W. replied 2 months ago.

So it will not start with the ICP plugged in?

Customer: replied 2 months ago.
It will start but dies after 5-10 secs... ICP sensor has been replaced
Expert:  Scott W. replied 2 months ago.

Is it hard to restart right after the stall? Does it idle rough?

Customer: replied 2 months ago.
no runs smooth and will start right back up but won't run long
Expert:  Scott W. replied 2 months ago.

OK, I have seen a few PCM's cause a issue like this, usually tapping on the PCM will make the engine stall. Or it could be the main engine wire loom could be shorting where it contacts the intake manifold on the drivers side of the intake. If the loom is shorting they don't usually set any codes, since you smell raw fuel I suspect the wiring loom is the culprit. I have seen either the FICM wire loom short and also the main engine loom short.

Customer: replied 2 months ago.
ok i'll look at these items tomorrow
Expert:  Scott W. replied 2 months ago.

Ok