New fuel filter leaking

Today I stopped by NAPA and picked up a NAPA Gold (Wix) fuel filter. I brought it home and installed it. No leaks. No problems. Case closed.

Here's a picture of the OEM (Left) and NAPA (Right) in a side-by-side comparison. I can see a difference inside the line fitting. I don't know know why this makes a difference on mine but it seems to.



Installed Picture.

 

I’m having a similar experience with the inlet dripping just slightly after install. Put the old one back on and no leaks. I prefer ome but may try another brand.

 

I know on my ‘85 Celica GTS convertible the fuel filter had a crush washer. Replace that with the filter, no leaks!

 

why do you change it every spring?

 

To be able to remove it with breaking everything

 

have you broken the front fuel tube ever?
the flare nut by the filter

 

Several times on Tacoma`s and 4Runners with over 100,000 miles of Winter and Liquid brine.

Most times the fuel pump bracket lines break as well trying to change the fuel line

A fuel filter is cheap insurance to the $300.00 plus in parts and time.

 

Just a thought from what I am seeing at work .....The part you are installing may be a counterfeit. I have been amazed at some counterfeit products I am seeing in my line of work. Also recently read an article about counterfeit MSD ignition products (for american muscle cars mostly) What I see is incredibly like the genuine with very subtle differences (possibly angle of conical sealing area in your case) only visible after tear down and measuring the parts of the item.

 

I'm glad I'm not the only one with a fuel leaking problem. I guess I had an Autozone fuel filter before and the new replacement filter is OEM Toyota. It seems like Autozone or Wix filter like the one quoted in the picture, the flare is shallower than the OEM and the hole is a little bigger. So once you use any aftermarket filter pretty much deforms the flare on the line and the OEM filter would never seal. It's kinda hard to tell from the pictures but there are some little differences between the OEM and aftermarket filters. Autozone filter on the left and OEM on the right. I ordered a new filter from Autozone and I'll try to install it tomorrow.

 

Thanks for sharing. That sure explains what happens. I thought I had lost my mind when the new OEM was leaking. I had to go get another Wix from NAPA. I tossed the OEM in the garbage.

I have a similar situation with an OEM radiator cap on some unknown BS aftermarket radiator that came with the truck.

A new OEM cap will not seal properly, but a Carquest (most likely a Stant) brand does.

 

I just got back from Autozone with new filter and it came with 4 crush washers, 2 for the thread and 2 for flare. The crush washers didn't come with the OEM filter. Hopefully, they will help with the leaking issue because the threads were bottomed out when I tried to stop the leak with the OEM filter.

 

I pretty sure with the OEMs you have to buy the fuel filter crush washers separately. Same goes with the oil filter and drain plug washer.
Aftermarkets tend to include them with their filters.

 

I think 2.7L 4 cylinders have crush washers for the banjo bolts but not for V6. I didn't see any when I took the filter off.

 

I guess I should go to AutoZone and get a spare.

 

I just went out and got the fuel filter installed and no leaks. After a couple of days of pondering, I just didn't get the flare nuts tight enough due to the lack of leverage of the flare nut wrench. I was only using flare nut wrench to tighten the flare nuts and used the filter bracket as the counterforce. I got a 19mm wrench on the filter and flare nut wrench on the flare nut in order for me to get it tight and not leak.

 

I know this is a little older thread, but just having this experience myself I will throw in my .02.

I replaced a Denso OEM filter with a Denso OEM filter. Exact same model and part number. I could not get the outlet to stop leaking. Took me about an hour and 4-5 tries. Here is what finally worked:

-Not tightening the mounting bolts at all to the "harness" until after the lines are installed. I think this was the biggest factor.
-Installing the outlet line completely before beginning to tighten the inlet side and making sure that I was pushing hard towards the outlet until I could not longer finger tighten.
-Used a 19mm wrench on the filter nut to get extra torque

I did not see any crush washers with either filter. I don't think the OEM has them as far as I know. Also every time I mounted it the inlet side felt like it had a crush washer. You know how you can tighten it just a little more because it feels like something gives (not stripping). The outlet side never felt that way.

 

The crush washers were for the old style 22RE filters that used Banjo Bolts to secure the fuel lines.

Also in that pain in the but spot above the starter under the intake manifold

Flared fittings seal in a totally different way

I am sure most of the leaks are from states with lots of winter chemicals or China built filters .

I get my filters from Toyota

 

CO/CA truck with limited chemicals. Brand new Toyota OEM filter. Leaked like crazy

 

Thanks to everyone here for all of the tips! I just replaced the fuel filter on my 2004 Tundra, it looks similar to the Tacoma filter. The first time I did the replacement I had a leak, I realized after my second try my problem - I had started the front fuel line into the filter without the filter completely seated in the bracket, thus crooked/cocked, and it never seated correctly. There is a specific sequence I found to getting the filter in without effort or mishap - I posted here in my build thread with pictures: https://www.tundras.com/threads/the-6-million-dollar-tundra-revival-story.84992/#post-2170731

 

I did my fuel filter like two months ago. What a PIA I bought an Autozone filter and proceeded as usual, only to have so serious fuel leaks coming out of it. I went back n’ forth trying to snug the lines up but gave up b4 I stripped them. I went back into the filter box and lo and behold there were some teeny tiny crush washers. I had never used them in any other fuel filter job before. In one last ditch effort I put those in the receiving ends before snugging up the lines. Worked perfect. No leaks whatsoever.