help me diagnois PO148 - TDR Roundtable

help me diagnois PO148

02-20-2007, 08:44 PM

#1 (permalink)

machinemover

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Join Date: Aug 2002 Location: sunny, AZ Posts: 295

help me diagnois PO148

dealer wants to charge me $300 for a diagnosis on this. I need help please. Symptoms are:
Pulling my 40' trailer up a 6% grade 3/4 throttle NO JUICE for more then 20 seconds engine light comes on, fueling problem.
Question is, how can I tell if this is a lift pump problem or a high pressure fueling problem. Is there an easy check before I go and buy a fass fueler or equivlent?

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'08 4500 4x2 C&C automatic.42" sleeper, Gooseneck. Ultimate Hotshot set-up. Stock and probably leaving it that way.

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