For the last little while, whenever I would open up the gas tank I would get a little bit of pressure release - whoosh. I have a metal LRA tank and so as the problem got worse, I would hear the sheet metal occasionally "pop" as the pressure developed - whomp whomp. At the time I didn't know where the whomp whomp was coming from - fingers crossed this fixes it. Last week I went to fill up the tank and got such a face full of air that I knew I had to figure out what was going on. I sent a message to @orangefj45 and he let me know that it was likely my charcoal canister.
I purchased the ACDelco vapor canister that a lot of others have mentioned. ACDelco - Vapor Canister (SLP-1) (215-153) , Black Amazon product ASIN B000C9I9GQ
For those getting ready to do this project I wanted to point out a few things that would have saved me a couple of trips to the auto parts store.
These first few pictures show the parts I used to connect the fresh air port underneath to the 1/2" line that now has to run up to the top of the ACDelco canister. The canister comes with a little clip on cover that needs to be removed to attach the 1/2" line.
Because the diameter of the ACDelco canister is larger, the ends will no longer make it all the way around and bolt together. I ran over to lowes and got a 2.5" bolt with a nylon lock nut. You will need to get two of each. Tighten it down, but don't go crazy because the new canister is plastic. While outside of the vehicle, I put the bottom mounting strap around the canister and climbed under the vehicle, I bolted in one of the strap flanges to the mounting bracket and then got out from under the vehicle. I then put in my 2.5" bolt and nut on loosely so that it could still be adjusted on the canister until I could get it bolted to the upper mounting bracket. Once it was tight on the upper mounting bracket, I then made myself into a contortionist and got two ratchets going to tighten down the 2.5" bolt.
In IMG_7770 above, you can see that the left side is bolted to the mounting brackets and the right side is about a mile away. Again, because of the larger diameter there isn't a way to mount this in all 4 mounting locations. The canister is super light weight, and because we used bolts instead of zip ties to tighten the bands around the canister, I'm not concerned amount only having it mounted in two spots instead of four.
Now that the canister is mounted in the vehicle it's time to get all of the hoses adjusted to size and mounted up. You will need 1/4", 5/16", and 1/2" hoses.
I couldn't find the right brass fittings to adjust the tank vent line so I had to use a doorman universal thing. Pictured here.
This last picture was tough to get any detail, but you can see that two of the mounting bracket wings are out in mid air. The other side is bolted up tight on both though.
Hope that helps the other greenhorns like me.
I purchased the ACDelco vapor canister that a lot of others have mentioned. ACDelco - Vapor Canister (SLP-1) (215-153) , Black Amazon product ASIN B000C9I9GQ
For those getting ready to do this project I wanted to point out a few things that would have saved me a couple of trips to the auto parts store.
- There are three hoses on the OEM canister. Two on top and one on the bottom. All of the hoses are 5/16 fuel lines. The one on the bottom is a fresh air vent which needs to be rerouted to the big 1/2 port on the top of the new AC Delco canister
- The AC Delco uses three different hose sizes which makes it a little tough to get everything to connect up right.
- The AC Delco has a larger diameter. The metal bands that hold the OEM canister will fit around the new AC Delco one but you'll have to make some adjustments
These first few pictures show the parts I used to connect the fresh air port underneath to the 1/2" line that now has to run up to the top of the ACDelco canister. The canister comes with a little clip on cover that needs to be removed to attach the 1/2" line.
Because the diameter of the ACDelco canister is larger, the ends will no longer make it all the way around and bolt together. I ran over to lowes and got a 2.5" bolt with a nylon lock nut. You will need to get two of each. Tighten it down, but don't go crazy because the new canister is plastic. While outside of the vehicle, I put the bottom mounting strap around the canister and climbed under the vehicle, I bolted in one of the strap flanges to the mounting bracket and then got out from under the vehicle. I then put in my 2.5" bolt and nut on loosely so that it could still be adjusted on the canister until I could get it bolted to the upper mounting bracket. Once it was tight on the upper mounting bracket, I then made myself into a contortionist and got two ratchets going to tighten down the 2.5" bolt.
In IMG_7770 above, you can see that the left side is bolted to the mounting brackets and the right side is about a mile away. Again, because of the larger diameter there isn't a way to mount this in all 4 mounting locations. The canister is super light weight, and because we used bolts instead of zip ties to tighten the bands around the canister, I'm not concerned amount only having it mounted in two spots instead of four.
Now that the canister is mounted in the vehicle it's time to get all of the hoses adjusted to size and mounted up. You will need 1/4", 5/16", and 1/2" hoses.
I couldn't find the right brass fittings to adjust the tank vent line so I had to use a doorman universal thing. Pictured here.
This last picture was tough to get any detail, but you can see that two of the mounting bracket wings are out in mid air. The other side is bolted up tight on both though.
Hope that helps the other greenhorns like me.