possible ipr issue, rebuilt now no start ?? HELP

[brraapp]

i recently bought a truck back that i owned a few years back an early 99 350..i got it cheap because it was running crappy and the guy was fed up..it started right up had a little miss but idled decent, after running down the road a few miles it slowly petered out to the point of stalling..it would restart but run bad grey smoke followed by back firing when revving then black smoke not enough power to drive..i reseachered all the things on here and started with the ipr, once i found it, i noticed the nut and spacer where missing??? just the sensor part sliding arround on the shaft. i bought a re build kit removed ipr, dissasembeled valve body cleaned made sure it was all moving properly put new o rings on and re installed..cranked motor and nothing..when before it started right up, it ran crappy but it ran. checked oil level put a gallon in since i lost all in the hpop and heads. checked hpop level it was full cranked and nothing. hit it with either fire and die no fuel..what now? and what would the ipr sensor thing do if it didnt have the spacer and nut? im sure its not being in the right place on the valve is not a good thing?? please help

[HaysKSFirefighter]

The spacer and nut has to be on the ipr to function properly, if the solenoid is sliding around then that changes how your ipr opens and closes. Have you found a new spacer and nut? you really need to have them on there, it will cause all kinds of stalling/rough running issues without it.

[rivercat]

im having an issue on my 01 X. When I cold start it lopes really bad for a few seconds and sometimes has a rough idle when hot. At light throttle it runs decent down the road but at WOT it cuts out truck trys to die with a white puffs od smoke when power comes back in. I believe either the IPR is clogged or not working right or there is a short somewhere near the CPS. What do you guys think? Also it dies allot more frequent driving in hard rain, and will actually stall at an idle.

[brraapp]

your prob definately sounds elictrical to me with water making it worse.. im not a pro though that is why i am asking questions also! i made that ipr tool with an inch and a eighth deep well half inch drive not an impact amd has to be six point.. then weld a six inch piece of flat bar to the back of the socket leaving the square drive opening open..you can remove and service that ipr in 10 min. with this tool.. if u search ipr service there are detailed instruction on ipr disassembally and service international offeres a service pack for 26$ new nut spacer and o rings..hope this helps

[HaysKSFirefighter]

Originally Posted by rivercat

im having an issue on my 01 X. When I cold start it lopes really bad for a few seconds and sometimes has a rough idle when hot. At light throttle it runs decent down the road but at WOT it cuts out truck trys to die with a white puffs od smoke when power comes back in. I believe either the IPR is clogged or not working right or there is a short somewhere near the CPS. What do you guys think? Also it dies allot more frequent driving in hard rain, and will actually stall at an idle.

The bit about the rain makes me think IDM, they are tucked in the drivers inner fender and are notorious for leaking and letting water/road grime in. Do some searches about that and see if your problems match up. I've never dealt with one personally so I don't know all the specifics about it.

[rivercat]

Got one coming, a 120v got a good phot thread about how to unbury the thing, and what about the shock hazard gonna hate trying to shoehorn the thing out and waking up on my back. lol gotta be a way to cross some pins with a screw driver and relieve the capacitors.

[Edwardmcmorris]

Lmao unhook the neg wire. I just checked my idm and that's what I did. Batery powered impacts are amazing (FYI). I'm gonna fight my ipr Tom. Did the ipr fix ur problem?