Join Date: Nov 2012
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95' 7.3 crank but no start...sometimes
I'm working on a 95' 7.3. Truck has 350k on it, I've owned it about a year and it's always ran like a raped ape. Always fired right up at the turn of the key.
The hpop was leaking really bad so I replaced it with a good used one that was re sealed. And ever since the truck never started the same, it cranks a little longer before firing and sometimes it will just crank and crank with no start but it would eventually fire up and run great.
I was driving into town today and it was running great, then all of the sudden it began running sort of rough and lost some power and the check engine light emedietly came on. So I putted it back home-about 5 miles, and just shut off in the driveway, and absolutely would not try to fire.
Checked codes with a small obd II scanner and no codes were stored. Checked it with a badass scanning system. Buddy of mine had and it was unable to connect with the truck but found 125 system codes.
After a few minutes of head scratching I tried to start it and it cranked for a good 30 seconds and finally fired up and ran normal. I let it warm up and then shut it off, then started it up right after Snd it started normally and idled for about 1 minute and shut off on its own and wouldn't fire up again. When it was running I had no check engine light.
I am getting 8psi at the shraeder valve on the fuel bowl, I have no clue what it could be and was hoping for some help!