BlackGMC

iTrader: (31)

My truck has been doing this alot lately... Whenever i get to about 1/4 tank of gas it starts idling like complete crap... Any ideas, the truck has 45k on it...

I was thinking maybe a bad fuel pump or is 1/4 tank when the EVAP cycles (kinda a stretch on that one, but an idea)???

Also i know there is plenty of gas, cause when my truck gets to "E" and the light is on, i can only put in 21.5-22 gallons of gas and I believe it is a 24-26 gallon tank (i may be wrong on that one...)

jschrock

iTrader: (7)

Mine does the same thing....i know for a fact its not the fuel filter bc this was on a brand new one (first tank to run through the filter). Also if you do a WOT it spits and spudders...

BlackGMC

iTrader: (31)

See mine runs fine at WOT, just idles like crap

Phantom

iTrader: (16)

Tyler (dirt track racer81) said his truck used to run lean when his tank was under a 1/4 tank and run a little not so good

PathfinderJr

iTrader: (6)

Is there enough baffling in the tank to keep the pick-up submerged when the fuel level is that low? That's the only reason I can think of for it to lean out when the gauge reads that level.

00ChevyScott

iTrader: (10)

Why would baffling in the tank matter at idle.............................

silveradokidd_4518

iTrader: (14)

i would say fuel level sender but you said you can only put 21-22 gallons...

could possibly be the entire fuel pump..

Ender06

iTrader: (3)

FUEL PUMP!! My 8.1 was doinf this exact thing, would get to the point were it would idle real low and sometimes die. Even died when I would come to stop sometimes, but would run great, just bad idle. And it was always with a 1/4 tank or lower. AND my fuel pump took a dump on me yesterday!!

dirt track racer 81

iTrader: (45)

just dont let it get to a 1/4 tank. mine still does it with a walbro 255

BlackGMC

iTrader: (31)

hmmmm, this sucks, for example this afternoon, i start it up and it just dies, i did it 6 times in a row, it flares up then dies, no stumble just dies, the 7th i started it and put in gear real quick and drove off... This is ridiculus, if i can't let it get below 1/4.... Remember mine is also Returnless