89 diesel. i need help!!! - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #1 of 21 Old 12-06-2008, 07:57 PM Thread Starter
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89 diesel. i need help!!!

for some reason all the fuel in the front tank is going to the rear tank. then it quits running. crank it over a bunch of times and it fires up and will run at idle for about 15 minutes and dies. this is runnin it on the front tank. switch it to the rear and still has same problem, even though there is fuel running out the neck of the rear tank. i need help! badly....... thanks Joe.

1997 F-350 Dually Flatbed 4x4 Diesel - Mods to Come
1999 F-250 Utility Diesel- Daily Driver
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post #2 of 21 Old 12-06-2008, 08:11 PM Thread Starter
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come on i know somebody has to know somethin

1997 F-350 Dually Flatbed 4x4 Diesel - Mods to Come
1999 F-250 Utility Diesel- Daily Driver
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post #3 of 21 Old 12-06-2008, 08:57 PM
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so the diesel if comming out of the filler neck?

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post #4 of 21 Old 12-06-2008, 08:58 PM
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how long has it been doing this?

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post #5 of 21 Old 12-06-2008, 09:25 PM
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i was thinkin fuel tank switch on the frame but i guess im wrong

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1999 F350 CCLB 4WD 7.3
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post #6 of 21 Old 12-06-2008, 09:32 PM
Emergency Services

 
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Fuel problem

If you have an extra set of hands, try switching to the rear tank and crank it over while you hold the shrader valve open up by the fuel filter. If you get fuel there, crack the line at the back of the injection pump and make sure you have fuel there also.

Depending on the style of fuel selector valve you have on the frame rail, that very well could be the problem.

1999.5 F350
4" Straight Pipe / Gauges (Pyro, Boost)
Wicked Wheel / Wg delete / Boost fooler
Tymar intake / Zoodad Mod / NChornet CCV mod
Hpx Crossover / Fuel CCK / ITP prepump tank mod
FPR Shim w/ underhood gauge
AIH Delete / Non Ebpv pedestal w/ valve delete
TW 6 position chip (will never own another canned toon)
3.73's / 6 speed manual 4x4
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post #7 of 21 Old 12-06-2008, 09:45 PM
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Fuel Switch

Bockhold, i think you were right on the money.

I looked at my tank selector valve on my 92 and I agree that it is probably the culprit in this case. It is probably sticking inbetween positions and allowing fuel to be pulled from the front tank and returned to the rear only. The selector valve runs both the draft and return side to each tank.

1999.5 F350
4" Straight Pipe / Gauges (Pyro, Boost)
Wicked Wheel / Wg delete / Boost fooler
Tymar intake / Zoodad Mod / NChornet CCV mod
Hpx Crossover / Fuel CCK / ITP prepump tank mod
FPR Shim w/ underhood gauge
AIH Delete / Non Ebpv pedestal w/ valve delete
TW 6 position chip (will never own another canned toon)
3.73's / 6 speed manual 4x4
Still messin with it
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post #8 of 21 Old 12-07-2008, 10:25 AM Thread Starter
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thanks guys. i was gonna put one on it anyways because its got almost 200k on it and it could be bad. how much does one cost?

1997 F-350 Dually Flatbed 4x4 Diesel - Mods to Come
1999 F-250 Utility Diesel- Daily Driver
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post #9 of 21 Old 12-07-2008, 10:31 AM
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i bought one earlier this year from ford and was like $150

had to be ordered

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1997 F350 CCLB 2WD 7.3
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post #10 of 21 Old 12-07-2008, 10:38 AM Thread Starter
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holy crap. is there any way i can fix the old one

1997 F-350 Dually Flatbed 4x4 Diesel - Mods to Come
1999 F-250 Utility Diesel- Daily Driver
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