Fuel Filter Change

Hey all;
Decided I should change the fuel filter. Never done it, and dont know when it was done. Question: Where is it? Is it in the backseat? I lost my Haynes Book. Thanks.

Oh, and is it hard?

Under the battery and intake pipe on your car. According to all data anyway.

According to all data anyway.


Don't you mean "SomeData". :grinyes:

Don't you mean "SomeData". :grinyes:


Oh i could go on for days about that....apparently the firing order on a GM 5.7 is 1-2-3-4-5-6-7-8..... Not exactly the greatest technical program, good diagrams though.

I shouldve searched before posting. Found it within 2 seconds. Duhh. How epensive are fuel filters, and can I get one at AutoZone? Also, do I have to relieve the fuel pressure beofre doing? Thanks

Fuel filters are about $20 at autozone. You might want to relieve the pressure to prevent a lot of gas pouring out of the fuel lines but you could always just get a cup or bucket to catch it in. If you go by the book you have to have a fire extinguisher handy too. :gay: Changing the filter is actually pretty fun and if it is bad you will notice a great change in your car's performance.

Is alot of fuel going to pour out? I would imagine because of the fact that the car is not on, that it would just be whats sitting in the lines. Is that alot? Fire extinguisher myass. Although it would have been nice when my car caught fire when I first bought it.

How would I relieve the pressure? Then, how would I get the pressure back? Thanks

Remove the fuel pump relay, and depressurize the fuel rail, that should take care of it. Once you put the relay back on and cycle the key it will pressurize again.

How do you depressurize the fuel rail? I know this is probably basic knowledge, but I've never done it. It would also be good for people who search on this in the future. Thanks

How do you depressurize the fuel rail? I know this is probably basic knowledge, but I've never done it. It would also be good for people who search on this in the future. Thanks

Disconnect the fuel pump electrical connector.
Start the engine and let it run out of fuel.
Turn it over to make sure it does not start.
Done

Wouldnt letting the car run out of fuel cause it to possible mis-fire?

And that will run the lines dry? Then disconnect everything I need to and Im ready to go?

It will only take a few seconds. You aren't going racing ; )

There will still be a little bit of fuel leakage, but you won't get sprayed in the face this way.

Just let the gas leak a little bit it's not much and it's gonna leak a little no matter what so why go through the touble? You might want to get a 14mm flare wrench for the bottom bolt.

You know I've done this a few times and the manual says that your car will die but I have let mine run for like ten minutes and it never died. I still didn't have a lot of spillage anyway.

Make sure you have a wrench on both the banjo bolt and the fuel filter itself. We were lazy and decided not to do this when we replaced the fuel filter. We ended up bending the hell out of the outlet port. Also we found you don't have to depressurize the fuel system. When you remove the rubber hose towards the back of the filter just pinch it closed with some pliers and put a bolt into the end of the hose. To put it back on just use the pliers again. Good luck.

You know no two people ever do anything the same way. So rip that somebitch off and see how that works for you. Either way doesn't really matter. The man asked how to depressurize the fuel rail, and that is how you do it.

Make sure you use flare wrenches when doing this. If it has been on for a while it is a pain in the freaking ass to get off and regular open end wrenches slip rather easily on the bolts, rounding it off nicely so it's almost impossible to get off. And it's always a good idea to relieve the fuel pressure, EZ is an idiot (he's my brother) so don't listen to him. Mine was so hard to get off that I almost let another person touch my car to get it off.

Alright. I thought I had a day off this weekend, but of course I don't. Ill pick up a flare wrench and fuel filter this weekend. What sizes do I need?

Also, Ive seen cars with those stainless steel fuel lines. Mostly seen with nitrous. Are those any good? Worth doing? Thanks for all the help

I'm not sure how stringent the tracks are around you but, up here at Pacific Raceway(SIR) they won't let you get away with having any more than 10" of rubber hose on your fuel lines. The techs seem to be way more lenient with the slower import cars, But I would check with the tracks just to be sure, especially if you plan on going past the sportsman class. If you don't plan on going to the track, and you're going to stay normally aspirated I don't see why you would need to upgrade the fuel lines. The stock rubber ones should last forever.

http://www.dsmtuners.com/forums/showthread.php?t=67761
Hopefully this should help.

OK, they say that the fuel filter is under the car by the fuel tank. Checked the Haynes (I found it!!) and it says underside the car, not in the engine compartment. I havent had time to check myself yet.

http://i5.photobucket.com/albums/y170/Skugulgurk/helper.jpg

The red circled thing is your fuel filter.


http://i5.photobucket.com/albums/y170/Skugulgurk/helper2.jpg

we had to block off the original line and run a new one to the regulator. I'll go more to detail on this with the turbo write up. Hope this helps.