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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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Old 01-28-2013, 12:20 AM
Thomsen Thomsen is offline
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Fuel delivery question

I am working on an 89 f-150 with a 5.0. It has been sitting for about 3 years without running. The truck was running when it was parked, it sat for awhile and it was discovered that mice had carried wheat through through the pvc hose and into the valve cover. So I pulled the drivers valve cover and cleaned everything up. I went to start the truck and I couldn't get it to fire. I checked to see if I had any fuel pressure, and there is no pressure. The in tank pump is running. I am getting fuel up to the in-line pump on the frame rail, but no fuel coming out of it. My question is this, does the in line pump run off of the same relay as the in tank pump? How does the in line pump kick on? Is there a different relay that runs the inline pump? I am just wondering if there is something else I should be checking before I go buy an in line pump. Thanks.
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1978 F-150 swb 4X4: 400, NP-435, 205, 38.5 Boggers
1979 F-150 4X4: 466, C6, 203, D60/Sterling 42'' Iroks
1986 F-350 CC 4X4: 6.9 IDI, T-19, D60/Sterling
1989 F-350 4X4: 7.3 IDI, ZF-5spd, D60/Sterling, Banks
1994 F-150 4X4: DD, 5.0, AOD
2000 F-250 4X4: Supercab, Powerstroke, 6-speed
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Old 01-28-2013, 09:10 AM
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Conanski Conanski is offline
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Both pumps are on the same circuit so it sounds like the frame pump is dead.
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1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
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Old 01-28-2013, 09:10 AM
 
 
 
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