I am replacing my gas tank (rust issues) with a new one from S30. I have everything unhooked but the main filler hose that is connected to the tank. I've used slip joint plies that won't budge it and also gentle heating with a heat gun. The tank has been empty for months and i blew a bunch of air through it first. Also afraid that if I get the rubber too soft I might just deform it with the pliers. It looks like new main filler hoses are going for about 125 to 175 dollars so I want to avoid that. Right now the tank is just hanging loose under the car on a support I've set up. Any ideas are welcomed.

Be patient. Space heater to warm the whole thing up? (Here, this time of year, we wouldn't be having that problem...) I wouldn't use pliers. I'd try prying the end of the filler hose away from the tank (or the tank away from the filler hose - which ever way you want to look at it.) with one or two long prying tools (whatever works to catch the edge of the hose without harm - thin or wide) Long screwdrivers? Flat pry bar? Regular pry bar? Non-metallic pry tool?

But you do need to somehow break the "bond" that the rubber has made with the steel inlet tube. Then treat the filler hose with Meguiar's Hyper Dressing...

If the worst should happen and you damage the filler tube I have a used one in excellent condition that I will let go at a very resonable price.

Edited 18 hours ago18 hr by jfa.series1

Get a couple of 90 degree picks, 1 large & 1 small. Round off the tips so you don't poke through the hose. First, work the small one around the lip of the hose to break it loose. Then, follow up with the larger one.

After you break the adhesion, put some silicon grease on the larger pick and work it around again. Try the tongue-and-groove pliers to twist back and forth until it breaks free.

Thanks Guys, some excellent advice on tools, approach and lubricants. I'll get on it tomorrow and post some feedback on how it goes.

Thank you.

3 minutes ago, swflaz said:

Thanks Guys, some excellent advice on tools, approach and lubricants. I'll get on it tomorrow and post some feedback on how it goes.

Thank you.

If you can get to Harbor Freight tomorrow, here's a coupon for the large and small picks: https://go.harborfreight.com/coupons/2025/07/184225-69592/

Ha, fantastic. Thanks Steve.