hard starting, easy fix - Ford Powerstroke Diesel Forum
Non-Powerstroke General Discussion General Discussion for 6.9L and 7.3L IDI (Non-Powerstroke) Engines

 
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post #1 of 5 Old 01-07-2008, 05:21 AM Thread Starter
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Smile hard starting, easy fix

I have a 87 with a 6.9 engine. After sitting for a while,maybe overnight, it was hard to start. I place a check valve in the fuel return line as it comes out of the injector pump and it fixed the problem. The engine was apparently losing its prime
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post #2 of 5 Old 01-14-2008, 04:12 PM
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do you have any pics of this my Buddy has an 86 f350 drw 4x4 short chassis cab with a flat bed and it has this problem

08 f250 king ranch 4x4 innovative 3.03 tuned,5" straight pipe,fully deleted, leveled on 35's, 20x10 -12, cac pipe,diesel site coolant filter

sold 05 xlt f250 6.0l fx4 reg cab black 6" lift studded and deleted, king ranch seats
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post #3 of 5 Old 01-15-2008, 05:34 PM Thread Starter
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Cant come up with any pics but the pump sits right on top of the engine. Its the first thing you see, and the fuel return line come out of the top with an elbow. You probably should look at a schematic of the fuel system in a repair manuel at the library. best of luck jim
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post #4 of 5 Old 01-17-2008, 05:24 AM
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which way is check valve installed? i am assuming it is installed so fuel will travel back to tank and stop it from traveling from tank to engine. is this correct?
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post #5 of 5 Old 02-19-2008, 04:35 PM Thread Starter
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sorry for the delay. Yes, the check valve is placed in the direction of the fuel traveling back to the tank. BTW my truck is still starting good jim
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