99' f450 7.3l hard starting runs fine then shut down. - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 01-16-2008, 03:07 PM Thread Starter
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99' f450 7.3l hard starting runs fine then shut down.

Hey,
I hope some one has some suggestions. The truck hardly starts but once it does it idls fine. It runs fine while driving it but once we come to a red light or stop sign it stalls,it shuts down just like if I would turn the key off. And once it's stalled it won't start up again and has to be pulled. Any suggestions??

And one question does the power stroke use 2 fuel pumps. Like a supply pump and a high pressure pump? If so where are they located. Thanks.
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post #2 of 6 Old 01-16-2008, 03:10 PM
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The PSD uses one fuel pump. It is located on the frame rail on the driverside. Then it uses a HPOP High Pressure Oil Pump to pressure the fuel for the injectors. Then the injectors use electric signal to spray the fuel into the cylinders.

I suggest you have the truck scanned for codes and then go from there.


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2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
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post #3 of 6 Old 01-16-2008, 04:18 PM Thread Starter
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Thanks bigcountrysg
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post #4 of 6 Old 01-16-2008, 04:24 PM
duct tape & zip ties

 
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Quote:
Originally Posted by Rjames View Post
Thanks bigcountrysg
No problem man. That is why we are all here.


Your Actions Today, Decide Your Future Tomorrow

2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
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post #5 of 6 Old 01-22-2008, 02:37 PM Thread Starter
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FOUND THE PROBLEM!!! The o-rings on the outside of the injectors were in really bad shape. After we put new 0-rings on it started nicely
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post #6 of 6 Old 01-22-2008, 02:54 PM
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Glad to hear you got it figured out

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