fuel delivery/ vapor lock? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 08-02-2001, 06:57 PM
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fuel delivery/ vapor lock?

Okay folks.... here goes.
1979 jeep cherokee s, 360 400 th, carter afb 4 bbl, edelbrock performer intake, bfgoodrich 33" MTA's, 4 inch suspension lift, 2 inch body lift, (all that is new or fresh rebuilt)

had sputter/ stall like the out of gas symtoms at 45.
replaced fuel pump
pulled fuel filter anad hacksawed it in half, it was packed with rust! pulled gas tank & it too was rusted out bad.
replaced with Poly tank from JC whitney source fit was great! replaced all rubber fuel lines,filters and rebuilt a brand new carter 4bbl.

problem still exists with a pratically brand new truck!

I am now kicking around the vapor lock theory and printed out some really early messages about this that was discussed like a thousand messages ago!

but now idicators point to fuel return system. also filling this thing with gas is a pain in the rear seal, nozzles keep shutting off, and I have to hold it pointing to the back of truck going real slow to keep it filling!

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post #2 of (permalink) Old 08-03-2001, 01:15 AM
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Re: fuel delivery/ vapor lock?

Sounds like the vent line from the tank to the charchol canister has a kink in it and is not allowing the tank to vent properly. At least for the gas filler problem.

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post #3 of (permalink) Old 08-03-2001, 04:51 PM
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Re: fuel delivery/ vapor lock?

thanks I'll check it out.

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