Truck stalled when I turned wheel at startup, wont start now. - Ford Powerstroke Diesel Forum
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Old 02-21-2012, 10:46 AM
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Exclamation Truck stalled when I turned wheel at startup, wont start now.

I just finished rebuilding the fuel bowl, all the hpop orings, and put everything back in. Also new pads and rear rotors. New oil change with full synthetic oil and new batteries. Let the truck prime itself a few times and filled hpop up with oil and started right up. Was rough considering it was cold and hadn't been running in a few weeks. But improved and was running really good. I started it a few more times to move the tires when I was bleeding the brakes. The last time I started it, I had my hand on the wheel and as soon as it cranked and started up I turned the wheel and it stalled the motor in start up. Doesn't start up now.

I got no exhaust/diesel fuel out the tail pipe either.
I checked the IPR it is still nice and tight on.
HPOP reservoir is nice and full.
Fuel pump is pumping and such.
No leaks anywhere, fuel or oil.
WTS light is normal.
Batteries are at full power.
Fuses are all good except #13 (Stop Lamps, Center High-mount Stop Lamp,
Trailer Tow Stop Lamp) was blown and replaced it.
Unplugged fuel heater and checked fuse, its fine.


Tried multiple start ups and nothing still.

Contacted Bob's from DieselOrings, he suggested the Hpop check ball maybe cracked. Took Hpop out again and found the check-ball to be fine. Reinstalled the Hpop, reservoir, and fuel bowl yesterday. Let it sit overnight since it was cold and wanted to give the gasket and loctite sometime to cure.


Installed a new CPS, nothing.
Checked and used new relays on IDM power relay, nothing.
Checked the Glow Plug Relay, reads 11.5+, nothing.
Unplugged EBPS, nothing.
Unplugged ICP Sensor, did get a service engine soon light after, nothing.


Is it the IPR? I remember the first time putting it back on I did over-tighten it before realizing I had to torque it down to 75in/lbs.

Thing is the truck ran 5-8 times in place before the stall, so everything was working properly.

I've checked the plugs and wires around the fuel bowl and surrounding reservoir area and all wires seem fine. Some lower plugs like the IPR and heater were covered in oil from my oil leak the last 8-9 months but I cleaned them good 3-4 months ago and never any issues.

Getting closer to dishing out the dough for AE.

Anything else?
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Old 02-28-2012, 11:42 AM
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Well I got AE now, starting to use it. Anyone point me in the right direction with it considering my situation with my truck?
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Old 02-28-2012, 11:50 AM
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Lots of things to check. First and foremost do the buzz tests and KOEO tests. Then check hpop pressure. Check while cranking as well.
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Old 02-28-2012, 12:42 PM
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Quote:
Originally Posted by audiocontr View Post
Lots of things to check. First and foremost do the buzz tests and KOEO tests. Then check hpop pressure. Check while cranking as well.
KOEO and Buzz tests fine.

Not sure on HPOP pressure test, here's data from a few tests while trying to start up.Ford-PowerStroke 7.3L-2000-February 28 2012.xls
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Old 02-28-2012, 12:53 PM
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You did the pressure test. Its the ICP and it looks good. Buzz tests all sound equal? Than the valve cover harnesses are probably good. Voltage seems a little low - you may want to charge up your batteries and try, or jump start it with another battery for added oomph.

Im leaning towards fuel pressure. Drain the bowl, then cycle the pump to make sure it refills. Do you have a fuel pressure gauge?
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Old 02-28-2012, 12:55 PM
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Quote:
Originally Posted by audiocontr View Post
You did the pressure test. Its the ICP and it looks good. Buzz tests all sound equal? Than the valve cover harnesses are probably good. Voltage seems a little low - you may want to charge up your batteries and try, or jump start it with another battery for added oomph.

Im leaning towards fuel pressure. Drain the bowl, then cycle the pump to make sure it refills. Do you have a fuel pressure gauge?
Fuel bowl filled up twice after stall (I had to remove it and hpop to check for a crack in the check-ball). I don't think I got a fuel pressure gauge that will work on this truck.
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Old 02-28-2012, 12:55 PM
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ooo, check your fuel pressure regulator spring. I'll bet its not seating correctly and youve over pressurized the system. May have locked up the fuel pump. Take the FPR apart and carefully put it back together making sure the spring is fully seated. Then drain and check the fuel bowl
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Old 02-28-2012, 12:58 PM
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Quote:
Originally Posted by audiocontr View Post
ooo, check your fuel pressure regulator spring. I'll bet its not seating correctly and youve over pressurized the system. May have locked up the fuel pump. Take the FPR apart and carefully put it back together making sure the spring is fully seated. Then drain and check the fuel bowl
So it could start a few times and run before stalling due to this?
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Old 02-28-2012, 01:05 PM
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Absolutely! I've done it twice - first time when i was told to try the BB mod, i made it a quarter mile before it seized the fuel pump. 2nd time was when i replaced the FPR. I drove about a mile before it over pressurized and stopped running, all because i caught the spring on the outer lip of the FPR. Pressure was over 100 psi. Its a long shot, but common.

Did it shoot out fuel when you removed the fuel bowl cover or return path last time you removed the bowl?
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Old 02-28-2012, 01:07 PM
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Quote:
Originally Posted by audiocontr View Post
Absolutely! I've done it twice - first time when i was told to try the BB mod, i made it a quarter mile before it seized the fuel pump. 2nd time was when i replaced the FPR. I drove about a mile before it over pressurized and stopped running, all because i caught the spring on the outer lip of the FPR. Pressure was over 100 psi. Its a long shot, but common.

Did it shoot out fuel when you removed the fuel bowl cover or return path last time you removed the bowl?
I did notice a bit more fuel out the drain tube into a catch can. I'm going to check it out right now and report back. I'll take it out, reseat, drain, and try a start again.
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