1999 Powerstroke will crank but not start - Ford Powerstroke Diesel Forum
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  #1  
Old 12-04-2010, 05:28 AM
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1999 Powerstroke will crank but not start

This truck has me stumped. I bought the truck a few weeks ago knowing that it did not run (got a great deal). Towed the truck to my shop and looked it over. Everything seemed to be in order. It had been sitting for a while. Put one new battery in it and hit the key. It turned over real slow and the starter was intermitent. Put the truck on charge for an hour and replaced the starter the truck was cranking good at that point. After a couple minuets of off and on cranking I got the thing to start (I hit the jackpot). Smoked heavy and idled rough for a few minuets then cleared out and idled smooth. Took it for a test drive ran great, good power and throttle response. Pulled it back in my shop and shut it off and thats the last time it has ran. I have read many threads on here and checked everything I can think of (fuses, harneses, hpop level, battery voltage, fuel filter). I pulled the valve covers checked every connection.

When the batteries are up good it acts like it wants to start but just wont do it. I did bump it with a shot of either once and it did actually fire up but I had to hold the pedal at full throttle to keep it running and it would not get over 1000 rpm sounded terrible.

This truck is a 2001 F350 with 74,000miles. It does has a history with the engine though. The guy I bought it from had the heads off and had them redone. Not sure why? or if it even needed that. Also the exhaust back pressure valve has the harness connector broken off. I took the turbo exhaust tube off and verified that the valve was in the open position and then tied the control arm so that it can not close just to be safe.

I have a cheap scanner and the only codes are the exhaust backpresure valve, Keep alive memory, and P1316 IDM codes detected.

Any ideas or help would be greatly appreciated.

Thanks in advance.
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Old 12-04-2010, 09:04 AM
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You might need an IDM. those are pricey though so trade outta another truck to check?
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Old 12-04-2010, 11:28 AM
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Is there any way to test this. Could I unplug the valve cover harnes and check for 110 volts on each injector. Also would a buzz test work if the idm is bad. I ordered a scanner that will do a buzz test.

I am also thinking it could be a high pressure oil problem would like to test pressure but dont have gauges.
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Old 12-06-2010, 05:00 PM
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if your idm is bad it wont sync up to the computer, my 99 had this same problem.
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Old 12-06-2010, 05:13 PM
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P1316 means you need to do an injector buzz test in order to retireve IDM codes. When you had the valve covers off did you make sure the valve cover gasket was connected fully to the injector harness. These are notorious for coming loose right at that connection. This only applies to under valve cover wiring harnesses with one big plug and not 2 plugs on each side. Could be IDM as well. Need to do injector buzz test,
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Old 12-07-2010, 05:22 AM
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Thank You for the help. I did check both connections on the valvle cover gaskets the big one outside and inside, as well as each injector. I ordered an autoenginuity scan tool should have it in a couple days. I plan to do a buzz test then. I have seen (heard) a buzz test done before, but have never done one myself. Is there anything that I should do special. Does anyone know if a buzz test will work if the idm is dead.

Thank You
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Old 12-07-2010, 12:35 PM
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I just got done swapping IDM's out of a running truck. The truck that was not running before still would not run. Just to make sure I put the IDM out of the truck that does not run into the one that does and it still ran. Positive that it is not the IDM know. If anyone has any ideas where to look next it would be greatly appreciated.

Thank You
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Old 12-07-2010, 12:48 PM
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Quote:
Originally Posted by masmitty02 View Post
Thank You for the help. I did check both connections on the valvle cover gaskets the big one outside and inside, as well as each injector. I ordered an autoenginuity scan tool should have it in a couple days. I plan to do a buzz test then. I have seen (heard) a buzz test done before, but have never done one myself. Is there anything that I should do special. Does anyone know if a buzz test will work if the idm is dead.

Thank You
Just stand directly in front of the truck with the hood up. I want a AE really bad, but it will have to wait. They are awesome scan tools.
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Old 12-07-2010, 01:37 PM
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i had the same problem with my 7.3 a little while back had to take the batteries loose and let the computer flash itself it wasnt throwing any codes or anything but if u sprayed either in and held gas pedal down it would try and run but shut right off the bad thing is that the truck was running fine and shut it off didnt drive all weekend then went to go get in and it was doing this never figured out why this happened
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  #10  
Old 12-07-2010, 04:46 PM
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If the P1316 is still there after swapping IDMs then you still have an electrical issue with your injector circuits.
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