Hey guys, trying to sort out a hesitating, bucking and poor acceleration issue with my 4runner. Have slowly been going over everything and troubleshooting possible causes according to the FSM...no luck so far.

Came across this today....

Found this fuel filter today (or what appears to be) on the return line and want to know if this is suppose to be there. Looks like it's something the previous owner added in for some reason. Doesn't appear to be stock; can't find anything that looks like it in the FSM. Anyone know why something like this would be added in (if it's not stock) and if this could cause hesitating/bucking issues when the truck has warmed up?



Here's a picture of the part in question:



Thanks for any input!

 

i dont really think it would cause your hesitation but if its on the return line theres no real need for it ethier

 

It isnt stock, not much need for it, but could help keep the fuel system cleaner. My lines were were really rusty so it could only help.

 

I appreciate the replies. I guess if it isn't needed I'll probably just rip it out.