So I have a extra fuel line, 90 degree fitting, 180 degree fitting, and a coupler all supposedly for 3/8 fuel line (at least I think since the stock clip says "3/8" so I would assume 3/8 SAE but I would then think it would be metric as well). I have been trying to think of all the different combinations I can hook it up while trying not to damage or cut up any of my stock stuff.

So has anyone been able to plug the male end of a flex fuel sensor into the stock fuel line like this:


I am pretty sure they are the same size (the flex fuel sensor is the stock GM/Continental Sensor), the only problem is I am scared if I plug it in I will never be able to unplug it again. There is not enough length to the male end of the flex fuel sensor line and I wouldn't be able to get my fuel line disconnect tool over it to take it off again.

I plan to use this coupler to plug the other side of the flex fuel sensor to the stock fuel rail:


I measured the length of the sensor line and the depth of the clip/teeth inside the stock fuel line female end and it will be close but I think there is enough for it to fully seat the clip/teeth, but problem will be how will I get it off. I looked at some other fuel line disconnect tools but they all need too much room to get over the line and fit down inside to push the teeth out.

 

You ever done the fuel filter on a GMT800 flex fuel truck?

you have 2 tricks because the same problem exists

1) use the green plastic tool that sucks major pp

2) cut the filter and use a real fuel tool

if you go this route, I think you'll be cutting the sensor if you have to remove it. Or cobble together some barbed 3/8 quick disconnects and 6an fittings to eliminate the need for an internally sprung connector mating to the sensor

 

I wonder if this supposed "low-profile" one would work:

For only $16 I might just order it and try it.

 

This is supposedly for a GM "Flex Fuel "Filter"", maybe they mean "sensor" haha:

35000 GM Flex Fuel Disconnect | Lisle Corporation

This isn't what you are talking about by the PITA plastic ones are you?

 

no! thats actually a cool tool! the PITA ones are green plastic. And they mean filter, you will need it for the sensor tho

 

I guess I'll find out in a few days if the tool works, or maybe I won't since I'll have to take a gamble and clip the fuel line on the sensor to see if it will even attach. Then once it's attached theres no going back haha.

 

It will attach. Snap right on, leak free even!

 

Ok thanks, I guess I might as well go for it, if its stuck and then I can't make it work, then I just have a useless flex fuel sensor hanging off the line haha.

I really wish I could just plug the sensor male end on one side into the stock line, then pug the other end of the sensor into the 3/8 coupler, then the 3/8 coupler into the male fuel rail end. I just feel like if I do that it will end up pushing the fuel line back so much it flexes then kinks or fails where it kinks.

I already used one of these stupid racetronix female/female 3/8 fuel line couplers and the stupid aluminum threaded nut cap thing unscrewed itself and allowed the whole sensor to come off the fuel line which then poured fuel all over the hot engine and left me stranded one time. I started using threadlocker medium strength on it though, but I am still extremely paranoid about the thing coming off again.

Maybe one day we will all figure out all these dumb issues and then have complete worry-free ness and never have to think about stuff like this. I guess though I have always found you can never predict a failure, its always something you never expected occurs as a random type failure. Of course I guess that makes statistical sense.

 

So I found this style of SAE fitting adapter with the plastic clip insert works. You can plug it into the sensor and get your fingers around the plastic thing and release it good enough, still tight though:

 

Anyone ever come up with a better tool for this issue of no room to get a disconnect tool in there to release?