03 ox66 225 - will not idle

[basserman1]

I had to replace the high pressure pump about a month ago. The motor ran fine until the old pump died. The only thing I touched on the motor was the high pressure pump. Now, the motor will run for only 10 seconds. I have replaced the fuel filter, fuel bulb, and one of the low pressure pumps that leaked gas when I loosened the mounting bolts.

Now, all three pumps including the new low pressure pump leaks gas when I loosen the mounting bolts.

I cant get this thing to run. What else can I do?
Thanks!!

 

[basserman1]

Re: 03 ox66 225 - will not idle

anyone have any ideas??

 

[rodbolt]

Re: 03 ox66 225 - will not idle

now test the low pressure pumps as per the service manual.
then useing an ohmeter check the fuel pump low speed resistor.
also check the rail pressure when it dies, if its a high pressure fuel issue you will see about 0psi when it dies, if not pressure should hold about 25 psi for a couple minutes after shutdown.

 

[New2me]

Re: 03 ox66 225 - will not idle

Ill give a stab...You probley need to go ahead and change all the low pressure pumps. Pull the VSt down and inspect and clean the screen on the pump and fuel regulator,clean the o2 sensor,check the fuel filters as well.Do a search on here and there are alot of OX66 questions and answers.