FUEL LOSS - LEAK? Expertise Needed! HELP!

[AgPete139]

Fellow TRS-ers,


I smell fuel (strongly) every time I drive my truck. I do not smell any when I stop.

Since a week ago, my mileage has decreased dramatically. I usually get ~22 mpg with my setup, but now get 12-13 mph. I have not done any offroading in the last few months. Last week when I was filling up my tank, I noticed a medium sized puddle of gas below the tank/filler neck. I have crawled under 3 times, and have not seen any traces of evaporated fuel. I have not seen any spills since then.


I've read quite a threads regarding fuel pressure regulators, pumps, etc. The Hayes manual didn't help much. Please help!

Searched: http://www.therangerstation.com/forums/search.php?searchid=277947&photoplog_searchinfo=1&photoplog_searchquery=fuel+leak






AgPete139
1997 4.0 Extended Cab









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[RobbieD]

The first suspect, would be the fuel filler hose. Do you tend to keep the tank on the full side?

 

[ghost_rader]

i agree, but if you have a cracked fill hose on a newer OBD 2 truck, the check engine light should in theory be on and a code for an evap leak would be set i'm not sure that would cause such a drop in fuel milege, but someone on here might know better. another thing i would look at is the return line, i know there was a recall on my 94 4.0l for a cracked return line that came with a fuel smell.

 

[AgPete139]

Thanks for the responses...

I actually have a tendency to keep her on the medium-low side since I make frequent long trips. I'll recheck the filler neck.

I'll check tomorrow since it's already late tonight.



Pete

 

[RobbieD]

Good luck, man. I hope it ain't something too pain-in-the-ass.

 

[lil red]

im haveing the same problem in the jeep
i thinl its a cracked line, and i know it needs a fuel filter cuz she's gotten really sluggish latley
i cant break the tires loose anymore
not that i want to but still, i like to have some low end