Thought my fuel filter was plugging up, but I changed it today and it still acts like it is running out of fuel at freeway speeds. It runs perfectly normal in town, but a prolonged pull in the fuel seems to make it starve. Is there a screen in the tank on a 1st gen? My pump is a fairly new piston job.

 

You provably know this but You could run it out of a jug and see if it does the same or runs better, that will rule out the tank. Maybe in this case it doesn't matter but I always think it is more beneficial to have a fuel pressure gauge after the fuel filter to know in advance if something is malfunctioning.

 

I have a tap before and after, just need to find an adapter for my sending unit.

 

IIRC, there may be a factory screen. Maybe check out BC847's big fuel line install in the sticky.

IMO, Get a fitting and hook up that pressure gauge. Narrow it down from there.

 

Yes there is a screen on the basket in the tank, its red...I think. You can take it off, there are little tabs on the sides.
Haven't you been running a lot of AV gas?

 

yep there is a screen in the tank... are you sucking air somewhere? mine sputtered and popped and acted like it wasn't getting fuel or running out but it was sucking air at at a loose fitting where the steel line goes into the IP.

 

I will check that. It acts like it is related to suction, but it got steadily worse last night as I drove up 2,400ft to my house. By the time I got up there I the truck was crawling, and as soon as I parked in my truck it died like it was out of fuel. That makes me think the screen is clogged.

I suspect the Jet A is more of a solvent than K2 and it washed a bunch of gunk into the screen. Dropping the tank this weekend.

 

Yeah I was running #1 most of the winter and it was in a pretty old farm tank and i got the last of it so when my truck died I thought i got all the junk out of the bottom of the big tank and it plugged off my screen too so I dropped the tank. The screen was pretty clean (nothing big enough to plug it off) but cleaned it all up and cleaned out my tank I redid my whole fuel system with a custom fuel sump and airdog so didn't use it again anyway.

Just be sure to make sure your tank is empty of siphon it all out before you drop it! makes it much easier! I've learned that the hard way

 

Make sure your tank is venting and not getting put under a vacuum.

 

Don't break the screen! As far as I know it's a dealer only part, and they don't make it anymore. They make a different one now with a paper filter and metal housing. Long story short the paper plugged up so I started mine on fire in my lawn and replaced the paper with aluminum window screen!

 

My screen is broke

 

When I go to put fuel in tank it makes a sucking sound when I first open the cap. Is this what your talking about. I dont think the suction is a good thing to begin with but again im not that car/truck savy so... lol

 

hey-Hey!!!,
When I went to a 4601 electric pump I put a small paper filet ahaed of the pump. It has a mostly clear housing so I can see what sort of crud is getting caught. This one just got plugged up and caused symptoms just like you describe until I replaced it. it happened right after I put a half-gallon of new 5W-20 motor oil in the tank along with the fuel. good ole detergent oil...
cheers,
Douglas

 

I'm not a believer of fuel additives.
I've torn a few VE injection pumps apart and the only damage I've ever seen to the H&R is from lack of fuel to cool it, or from water in the fuel.

I do believe that WHERE you fuel is more important than the brand name of the fuel.
I tend to steer clear of places that have oil dry on the filling site, I look for general dis-repair and ill condition of the pumps and the surroundings of the station itself.

WITHOUT FAIL, if I fuel at one those dumps, I usually have to drain water within a few miles.

Definitely steer clear of old "Mom and Pop" looking places, because old tanks and lack of care abound in these joints.
Generally speaking, if the place looks uncared for and run down, it is NOT the place for fueling.

Mark.

 

This makes me wonder if there is a big difference in the quality of the gas station or the various fuel mixes for different locations, because I have had my truck since 2001, I fuel anywhere that isn't Valero or Bp and I fuel a lot in Mexico, and I have never had water in my fuel. It is pretty dry here,could that be the difference? I find it a little weird that it seems to be a pretty common problem...Mark