Fuel Filter O-Rings for Lines

sgiangregorio · February 23, 2006

I'm getting ready to replace my fuel filter on my E85 capable Tahoe (2002). I read a bunch of posts, and I have the tool on it's way to disconnect the hose from the quick disconnect.

One thing I noted was the comments about making sure that you have extra fuel line o-rings in case the ones there are damaged or missing when I pull the filter.

I went into an auto parts store today and the guy just grabbed a package of various sized o-rings and said it was fine to use. Since it wasn't labelled for use in fuel lines or with gas, I didn't want to chance them in case I needed a special type.

So, what o-rings do I need? Anyone have a link or a GM part number?

And since the filter only has a hard line on one side, is there an o-ring on the hose side (outflow side)?

Thanks

sgiangregorio · February 23, 2006

Pretty please.

asepgrad98 · February 23, 2006

just use the old ones, youll be fine

sgiangregorio · February 23, 2006

If they are there. I read that sometimes they are missing or damaged, so I just want to have some handy in case I need them.

And for anyone whose done the filter on a flex fuel capable truck, I'd like to know if the outflow side, the one with the hose, even has an o-ring.

thanks

sgiangregorio · February 23, 2006

GM part number 22514722 if anyone needs it. According to the dealer, there are no o-rings on the quick connect side of the fuel filter for an E85 vehicle.

100R1 · February 24, 2006

Don't reuse o-rings (or any rubber based gaskets)

Rubber takes a "compression set" which will deminish the sealing capabilities. Automotive O-rings are cheap and with your fuel system you would not want a leak.

I don't know what GM calls out for the o-ring material with the E85, but it probally is different from the standard Nitrile rubber compound used on NON-E85 vehicles.

Tucson_02Silverado · February 25, 2006

You can not use plain rubber o-rings in most locations on today's engine. The o-rings should be made of Viton

sgiangregorio · February 25, 2006

Thanks guys. I'm not sure what the o-ring is made from, but that was the part number from the dealer for an e85 vehicle. I'm going to pick a few up tomorrow.

I also spoke with Napa and they said they had rings made of viton and that they were safe for has. I just decided to get whatever the dealer said it called for though.

TOTALRECALL · April 10, 2006

Hi, have a friend trying to change his fuel filter on a 2002 Tahoe. Filter doesn't match my Chiltons manual. I saw in your post that you reference a special tool.

On his filter, the end near the tank looks just like a normal fuel line nut. But on the engine side, it kind of looks like some sheath or covering over and right up to the filter connection.

Is this the special tool you are talking about and if so, can you tell me more, like where I can get it? I don't know if he has an E85 capable vehicle or not, didn't think to check earlier.

Thanks for your advice as we are puzzled

Mike

redvett · April 10, 2006

The problem is the Chiltons manual get the real factory service manual and you will get accurat info. Go here to the site. http://www.helminc.com/helm/homepage.asp?r=seo11502

sgiangregorio · April 10, 2006

I got your PM and replied too. Check it out.

This is the tool I bought to help with the quick release end of an E85 fuel filter

http://cgi.ebay.com/ebaymotors/Lisle-GM-Fl...itemZ4610209536

C & A s Dad · April 10, 2006

The removal of these filters can be tricky and in most cases you will break the plastic lock which holds the engine side of the filter to the line. The tools are avail. in several styles but I like the one that looks like scissors. Mine came from CARQUEST and are Pro Value brand (# 39627). You will notice they are offset on the end and you will need this to get the OE filter off. GM was very cleaver in designing this and the OE design is very tricky to remove. You will see that it has a metal buldge just at the base which the offset on the tool is made to get around. The plastic retainer are also avail from most any parts store. Again min came from CQ and they are made by Dorman (part # 800 006). As far as an o ring, I was not aware there was an o ring in there, just the retaining clips, but I could be wrong. Not a tough job, but just be sure that you have a pkg of the retaining clips on hand.

sgiangregorio · April 10, 2006

There is only an O ring on the regular hard line side, not the flexible hose side. Per the Dealer, that's what I was told and saw on the blown up diagram. Have a few on hand in case you lose the one in there already.