This is my 4th fuel filter change at close to 75K--No problem so far. After this was one was complete, primed and started truck-no problems-after few seconds truck dies. Figured an air leak somewhere. Re-traced everything and pulled filter off to check things. Noticed that the plastic water- in- fuel element that attaches to the bottom of the fuel filter had a small crack in the plastic around the nut end. My guess is that this occurred over time from over torquing the element over the last changes. I guess this will cost over a hundred bucks to buy at the dealer. Be careful. Funny how a small -not well-designed plastic part can put you out of commision on a Sunday afternoon. Anyone know how much this cost and is it hard to find? Also, there should be a way to fabricate an emergency spare part to get you buy until you can get a replacement. May try to JB weld the old part for emergencies. Anyone with this experience?

--Thanks Ken

Eric has them.


http://www.gmdieseltech.com/store2/cart.php?target=product&action=view&product_id=16138&category_id=248

And the custom wrenches, so you don't break another WIF.

BTW, almost 20K between filter changes?!?

Tom

i am on my fourth at 33.5K, the last two after having installed the Cat pre OEM. and on the second one of those.....

same here just put my forth in today with 38,000 miles

Fourth what?--Are you guys talking 4 WIF sensors or 4 fuel filters?-By the way the sensor cost me a little over $50 at the dealer.--Ken

I have never had that happen after 417k & change mine every 25k. Use channel locks. Guess I better get the right tool from Eric this week-end!! O yeah ,I have an aux.filter , therefor OEM gets it every 25k & aux every 15k

:lol:

hd90rider--Over 400K miles wow!--I don't think that the wrench makes any difference. I use channel locks also. I think it's how much you torque the plastic nut. It apparently doesn't take that much. Any special things you are doing--additives etc. to get that kind of milege?--Ken

Me too, Did you do anything special to get to 417K miles.

78000 and never changed fuel filter.. :ro) I thought you were supposed to change them when you start to lose power?

You can tightened the plastic nut by hand and it will not leak. No need to turn it more than 1/6 turn after that with the channel locks. The filter runs a negative pressure under 5 Hg. Anything over 35% compression of the "O" rings is unnecessary. Later! Frank

DSl Beast, I hope you are joking. If your injectors take a dump and you are running your original:eek: fuel filter, the dealer would probably laugh at your warranty claim.:(

mine lost power so slowly,that i never noticed any diff.
untill i was reminded about the filter and changed it.then
i did notice an increase in power.

how often are you suppose to change the fuel filter

how often are you suppose to change the fuel filter
General Motors recommends 15K miles. Many on this web site recommend 10K or less. I just did mine at 20K this past weekend. It was my 2nd filter change. The element itself had some dark streaking in it, but the inside of the can was clean and rust free. I was very pleased. I run primarily Amoco Premier, but do occasionally have to buy other brands of fuel.

how often are you suppose to change the fuel filter

The manual says every 15,000. But based on some of the photos posted of cut open filters, many are changing them every 10,000 (or even sooner). 10K works for me.