I have a 1993 f-350 dually with 7.3 idi non-turbo auto. 210k took a longer trip then usual helping some family move and after the 5 hour trip wouldn't start. Had it towed home and started checking things the next day. Replaced a 30a fuse under hood that was blown, got new fuel filter, and replaced injector caps and lines (only because I've have the parts for 2 months and no down time to do them). Hooked up battery charger and gave a few good 20sec cranks while bleeding lines at the injectors. And got it to hit a few times after but not fire. Let sit for about and hour and then it fired up and ran great. Started up the next morning without a problem then working an hour away I shut it off and tried to start it and nothing. Good cranking just acts like I'm not getting fuel. Read on here about putting cool (not cold) water on the IP and tried it. Fired right up. Top of that injector pump was hotter then my coolant lines. I took top off to check out the fuel shut off switch. Grounded it and hooked a jumper to it. It was operating but did sometimes stick partly closed and hummed, when it did shut completely it made no noise.

My question is will that cool water trick effect the fuel shut off switch?? Because after starting it isn't having any problems going for however long I want to run it. Just after heated up doesn't want to start. I really want to make sure cause my local O'Reilly's wants $500 for a new IP. I've also hear the ICP can keep one from starting.

 

There is no ICP in an IDI. It's a fully mechanical system, with no electrics other than the shut-off solenoid(which physically moves that lever which closes the metering valve).

Other than that, yeah, probably a good chance a new IP would certainly help.

Do check out Conestoga Diesel or R&D IDI Performance or Typ4 here on the forum - These are the only 3 places you should buy an IP from. The auto parts stores sell very crummy rebuilds, and we've seen quite a number of people still having issues(usually a different ip-wear related issue) ater buying a "rebuilt" auto parts store pump.

 

I was afraid of that....

And ouch those are around $700 for a stock one.
I have a international here in town I might try to get a new fuel shut off switch and see if that does anything. Why would the injector pump fail to pump then after started run fine all day long?

 

how many miles are on the pump in the truck? they are really only good for around 150k miles before needing rebuilding.
while $700 may sound like a lot of money for a stock injector pump, you are basically getting a brand new pump.
for the $500 from an auto parts store or one of the ripoffs like pensicola diesel, you are getting a repainted housing with the one part that failed replaced.

 

Don't know for sure might be original I've only owned the truck a year and it had 180k when I got it. I know parts are always going to be expensive for diesels but v I've actually had this thing listed for sale and only gave $1700 when I got it a year ago. Just want to get it better before the next guy has problems.

 

trust me from my experiences the injection pump is something you DO NOT WANT TO CHEAP OUT ON. Please do yourself a favor and pay the few hundred more for a quality, trustworthy, reliable injection pump that you know was completely rebuilt and in working order.