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Old 11-25-2010, 08:20 AM
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truck died now will not start

We have 1994 7.3L / 5 spd. 4x4. Started the truck up to warm it up yesterday. Ran for a few minutes and died. Changed the idm with a spare, nothing, changed the cam position sensor and still nothing. We have 200 psi at the oil rail and fuel pressure while cranking. Any ideas what we should look at next?
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Old 11-25-2010, 08:32 AM
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HPOP resevoir?
check the fuse box under the hood
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Old 11-25-2010, 08:54 AM
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is it getting fuel?
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Old 11-25-2010, 01:11 PM
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We have checked the fueses, forgot to mention that we are getting fuel pressure while cranking. We are going to drain the bowel and make sure it is filling while cranking, not just showing pressure. What should I look for at the HPOP reservoir?
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Old 11-25-2010, 03:36 PM
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make sure the HPOP is full, are you getting smoke when cranking? Do you have a Wait To Start light, or Check engine light?

And only 200psi of oil on the rail? from a port in the head?
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Old 11-25-2010, 05:01 PM
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High pressure oil will not go above 200 PSI untill it recieves a signal from the cam position sensor. You need a minimum of 365 PSI for the injectors to fire.
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Old 11-26-2010, 04:14 AM
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hpop is full, no smoke when cranking, cam position sensor we put in was from a 97, could that be different? wait to start light comes on, no check engine light, any more ideas? Also need to add that a new mechanical fuel pump was installed 2 weeks ago.

Last edited by pitsingerk; 11-26-2010 at 04:22 AM.
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Old 11-26-2010, 06:13 AM
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the CPS still could be bad, unless it came from a running truck.

Also, pull the IPR out and check the o rings on it.
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Old 11-26-2010, 06:48 AM
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cps is out of 97 that got a new one from the recall. I have done some searching and it seems that the 97 is not the same as the 94. On our way to get a new cps from Ford.
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Old 11-26-2010, 01:06 PM
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New cps in, still will not start, need some ideas on where to go with one guys
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