ok guys have 1990 2 dr blazer just put my fuel pump in replace lines with rubber all the way up to the filter problem is when she is running the gas is pissing out were the lines go up in to the frame rail near the front left tire and cant get in there to see what one is cracked im pretty sure its not the return line the was its pissing out

 

Return line has little pressure. If the truck runs fine it probably is the return. I would figure out which one is the return and replace it with rubber fuel line. Dont have to replace the whole thing, just a section

 

i run into issues like this with brake lines. no need to get at the old one, just run the new one next to it or where ever you can

 

ok guys looking from behind the injectors there are 2 lines i take it one is for the gas and other for the return can some one tell me what one is a gas and or return going to bypass the rail

 

the intake should should have a valve like a tire valve on it

 

Not on his tbi engine. us with the 92+cpi,or vortecs (96+) has these. just not tbi. they have 2 big lines with big nut fittings.


op i believe the passenger side one is the return. Dont bypass this line,you can bypass some of it to get past the leak,then plum it,but dont delete the return.

 

Thanks Chris. Didn't know that