Reaching out to see if anyone has experienced this, thank you in advance for any help here. So the story, I bought the truck and it was running fine until one day it started to die while idling warm or cold. I was about 15 miles from home and it flat out died on the way home. Fortunately my brother had his truck and was a few minutes away. I thought maybe it ran out of gas so I had him tow me to a gas station to fill up. Tried to start it, nothing.. so I push it to a parking space and put the pump straight to the battery and the pump is flat dead. I get a new pump at the nearest auto parts store and put it in and dive it home. (this is during the hottest part of summer) a month goes by and I hardly drive it next time I go to drive it, it keeps dying going down hill every time (in and out of gear) and often on flat ground taking it out of gear. I am thinking I have a vacuum problem and did some stuff to deal with that (check build thread for more info). I have verified now that the common vacuum issues have been dealt with, I replaced the plugs and rebuilt the carb. It now idles much better and only dies on the steepest of downhills, which I have both getting into and out of my neighborhood. I have not tried adjusting the float yet and think that is a possibility. Also I am not sold that the fuel pump is the right one for the job. It supposedly is the right PSI but it was the only one they had and I was short of time and the car was parked in a sketch area so I wanted to get it home. For any curious Minds its the Mr Gasket 42s 2-3.5 psi sold at autozone. In the long run I would like to get a nicer pump and a regulator to go with the Weber 32/36 I have in there. So after my long ramble any thoughts?
Nope sure haven't but I wouldn't be surprised as the carb had all kinds of crud in there when I took it apart the other day. Probably something to do either way as I am certain its the original tank and its probably rusty as all get out.
So now it only dies on an incline? Fuel pickup sounds like a good place to start if that is the case.
yeah in the limited testing I did over lunch that is correct, it only died on the steepest part of the hill as the truck picked up speed. But once on level ground and not moving it idles fine.
Id definitely check the fuel lines, i made sure to clear mine out and clear the in tank pick up. Shit was all clogged up and full of crud
Does anyone use the intake fuel pump with the weber? I assume mine is either dead or disconnected. Truth be told I haven't looked into that at all. Just wondering if I am going to go through the trouble of dropping the tank and cleaning it out if it would be worth replacing that fuel pump and get rid of the one I put on recently. Thanks again for the helpful replies!
When you mentioned it only happened on the steepest of hills made me think you might need to do the hill climb mod.
I've got a weber and I'm pretty sure I just have an external pump but I'm not a 100% sure to be honest.
It's a quick little mod to help on hills. It's something to do with moving the vent or something. You can find walk-throughs on the 4x4 forums.
The main difference (and I am not sure it matters) is that uphill driving I am fine because I am giving it gas. Its the downhill that is killing me. BUT I could see how a poorly adjusted float like they mentioned could def be a problem too. Seems like the order of things to try in ease and already want to do projects is to. Make sure the float is correct Get a regulator in there and verify the pressure from the pump Get the tank and lines all cleaned out I like a good project so this is fitting the bill nicely Thank you good folks!
Good to know! I am leary about the modding of the weber especially since before the fuel pump went out it worked fine on hills in both directions. So I'll keep that in the back pocket as a if all else fails. Anyone put or have plans to put snazzy fuel lines in their engine bay when working on the fuel system?
Definitely good to check the floats. Without a regulator and gauge it's hard to know if your in a safe range. Get one with a return to insure its not creeping up on you when the fuel heats up. To much pressure can absolutely mess up the needle/seat and float level. Personally dealing with this problem after I jacked up my fuel pressure foolishly. Also the fact that giving it gas driving up hill helps makes me think the hills and the Weber is the problem. One of the 4x4 guys tricks if they don't want to do the mod is to do a hand throttle so they can regulator idle without there foot. I've noticed some misbehaving on my old setup when going up a 20% grade or so.
I got that one and it's been okay. No return. Don't drive enough for my fuel to get hot. Dont really recommend it tho. I did just go back and saw others reviews and they have said they have been sent a plastic regulator or had to disassemble it out of the box.https://www.amazon.com/dp/B00P3XRXJ...abc_K25X0X6V0DE364WMK17M?_encoding=UTF8&psc=1 Just avoid the 0 to 100 ones.
I'd start with the regulator and fuel pressure gauge if you don't have them with that Weber. My understanding is the Weber only likes a max of 3psi or you'll have issues. My house is at the bottom of a decently steep hill and it has no problems with cutting out