Hard Start on 98 truck - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 11-13-2009, 12:24 AM Thread Starter
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Hard Start on 98 truck

My buddys truck has an intermittent hard start... He took it to the dealership and they put an inj. pump and lift pump on it but still has the same issue. It acts like it is leaking down. Any ideas???

Aaron - 2004 F350 "Offroad Edition"

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post #2 of 5 (permalink) Old 11-13-2009, 03:54 AM
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Did they put a new lift pump on it as well?

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post #3 of 5 (permalink) Old 11-13-2009, 03:17 PM
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Yeap... Low pressure tore the diaphram in the VP44...

Try this mod...
(Bottom of page)

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116K Miles On My VP44 - 4 Years of 2 Cycle Oil Diet! - Mixed at 128:1 Ratio - 25.3 MPG maxed out!
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post #4 of 5 (permalink) Old 11-13-2009, 03:28 PM
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I don't mean to bust in on this but. My 99 is doing the same thing. Mine only seems to do this when the fuel hand is around a quarter of a tank or on a unlevel grade, only on starting. I have a Fass 95 lift pump and holds anywhere from 15 to 18 fuel pressure. If I touch barely put my foot on the pedal it will start after a few cranks. I have no problems if you turn it off on a grade then start it right back up but after a while, it does it. Any suggestions?

1999 Dodge 2500, 4X4, automatic, with an swapped 53 block with a 2001 55 block, Mods: Edge Juice with Attitude, Sliencer ring MIA, BHAF, 2" leveling kit, straight piped, brush guard.
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post #5 of 5 (permalink) Old 11-17-2009, 10:00 PM
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What about when its facing down hill? Sounds like fuel might be draining back into the tank.

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