Replaced the mechanical fuel pump in my 95 7.3 today. Truck ran before but pump leaked and had loss of power. Put the new pump in and truck fired up after a few cranks. I keep the rpms at about 1500 for 5 minutes to get the air out of the system. Let the truck go to idle then it died. Hasn't restarted all afternoon. I'm very confused. I have plenty of fuel. It just won't fire at all. I have no idea what could have went wrong?

 

I say keep cranken on it (in small doses to not burn the starter up). You getten any smoke?

 

Truck use to smoke when it was cold outside while starting. I'm not getting any smoke what so ever.

 

I was thinking it was the cmp, but the tach still works while cranking.

 

That actually isn't a definite rule. you can have a moving tach but no rpms actually being read.

 

Well I'm gonna test the cmp. What color wires run to the cmp? Is it an AC generator, hall effect, or???

 

??? The CPS (CMP) is 2 wires that run to a clip about 10 O'clock on/by the "harmonic balancer" I would just replace it.

 

If I had money to just **** away I'd replace a lot of things but the fuel pump drained my account. Just trying to get my truck up and runnin again so I can get back to work.

 

I see. How are yoou gonna check it?
Can you barrow a scanner?...is you truck "scannable"

 

I've got a DMM Ill backprob the connector harness. What color wires is the cmp? I can prolly get a scanner from a friend this afternoon. My truck is scannable. I've used fords IDS system on it and genisus system scan tool. Snapon modus and ethos also work very well.

 

cool. I thought/think the 2 wires are black and purple but I can't be sure. but it is the ONLY 2 wires in the connector....or even in the general area

 

I tried to start the truck dis mornin and the truck is dead. I now have a parasitic drain since I replaced the pump.

 

Well I looked and there's about 6-7 wires in a harness on the front of the motor. It splits to 2 sensors coolant temp sensor and cam sensor. Where the other wires go I have no idea.

 

If you were not on your back....you were not in the right place I will try to find a pic for you.

 

Keep the volume turned OFF....just watch the video...it will show you were it is
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