Problems: no warm start
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New User
Joined: Oct 2006
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Problems: no warm start
hi, i have a problem, my powerstroke 7.3 ( 2001 ) is starting when machine is cold, if it get warm, it dies. you cannot start then. ten minutes later you can start again, but if it get warm.....i have an DIABLOSPORT-Programmer, and i get codes P1000 and P0603. i have changed oil with filter, diesel filter, oil pressure switch.is there anyone who has an idea?
hope you can understand me, because i live in germany.
hope you can understand me, because i live in germany.
Elder User
Joined: Jan 2004
Posts: 803
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From: Bobcaygeon Ont.
When the truck dies and you try to restart it can you here the fuel pump running when you turn the key back on? You may have a relay that is shutting off when it gets warm. Check it out and let us know. I will keep thinking about it. Welcome to fte by the way. You'll love it!!
Fleet Mechanic
Joined: May 2005
Posts: 1,567
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From: Chattanooga
The ipr is in the side of the fuel canister and is the return flow pressure regulator. I think he may mean the sensor for the oil pressure located underneath the canister. It eludes my mind the name at the moment.
Post Fiend
Joined: Oct 2003
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From: MICHIGAN
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Fleet Mechanic
Joined: May 2005
Posts: 1,567
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From: Chattanooga
Your right, I was mixing my FPR and IPR. I was searching for the cleaning manual for him just now. Thanks for setting me straight.
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thank you all very much, but i thougt, if the car cannot start, what is with the CPS?
i have one new here, and i change it. thats it, i drive 20 mls and it drives very good.
i am so happy. but i dont know, why the machine starts up, if it is cold? can me someone tell me this. i dont understand this.
i have one new here, and i change it. thats it, i drive 20 mls and it drives very good.
i am so happy. but i dont know, why the machine starts up, if it is cold? can me someone tell me this. i dont understand this.
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
Originally Posted by hasali1
thank you all very much, but i thougt, if the car cannot start, what is with the CPS?
i have one new here, and i change it. thats it, i drive 20 mls and it drives very good.
i am so happy. but i dont know, why the machine starts up, if it is cold? can me someone tell me this. i dont understand this.
i have one new here, and i change it. thats it, i drive 20 mls and it drives very good.
i am so happy. but i dont know, why the machine starts up, if it is cold? can me someone tell me this. i dont understand this.
Elder User
Joined: Oct 2005
Posts: 786
Likes: 0
From: Reno nv
current theory on CPS internals : some of the components become heat sensitive and "break connections" when they get warm due to thermal expansion in the CPS. at 12 volts the gap you can bridge with an arc is about .003". Since the CPS works at 5 volts a gap of 1 or 2 thousands will shut it down. some materials will grow .005 to .010 for a hundred degree temperature difference which is what the front of your truck can see.
Since the bad CPS causes fuel timing (really important to running diesels) to go away, your computer thereby has a hissy fit and won't let the truck run.
my $.02 your mileage may vary. OH Yeah: buy and carry a spare CPS just for such occasions.
Since the bad CPS causes fuel timing (really important to running diesels) to go away, your computer thereby has a hissy fit and won't let the truck run.
my $.02 your mileage may vary. OH Yeah: buy and carry a spare CPS just for such occasions.
Last edited by piotrsko; Oct 13, 2006 at 06:56 PM.