mattplumber
Full Access Member
I have a crank but no start prob on a 99 7.3. Replaced the Cps with genuine ford part, still no start. Replaced fuel pump on frame rail because I thought it might no be making enough pressure, still no start. Started reading up on how the HEUI Injection sytem works and kept coming back to the IPR valve..................
I read up on how to remove it and clean it, which I did, but just for giggles I decided to ohm the solenoid to see what resistance it carried and it didn't register.
If that IPR solenoid senses High pressure oil which causes the injectors to fire and the solenoid is open and doesn't sense oil pressure, then could that be my problem?
Anyone ever had experience with this?
I checked the codes with an OBD-II scanner and it showed no faults.
I don't even know if what im saying is right, makes sense, or is even logical as tonight will be my 5th night at trying to figure out why this damn trucks injectors aren't firing and im at my wits end-HELP!
I read up on how to remove it and clean it, which I did, but just for giggles I decided to ohm the solenoid to see what resistance it carried and it didn't register.
If that IPR solenoid senses High pressure oil which causes the injectors to fire and the solenoid is open and doesn't sense oil pressure, then could that be my problem?
Anyone ever had experience with this?
I checked the codes with an OBD-II scanner and it showed no faults.
I don't even know if what im saying is right, makes sense, or is even logical as tonight will be my 5th night at trying to figure out why this damn trucks injectors aren't firing and im at my wits end-HELP!