Help…gas leaking from gas tank

Good morning,

I recently noticed a strong smell of gas. I crawled under the truck and noticed the front area of the fuel tank was wet. I’m planning to get a camera along the top of the gas tank to see what’s going on. I’m not a mechanic, but I have researched and reviewed how to drop the tank if needed.

Anyone have any input or suggestions? Any advice or expertise is appreciated.

Thanks In advance ,
2018 platinum crew cab

 

If it's coming from the top of the tank it's possibly a seal where the fuel pump drops in. Check all the way up to the filler neck to make sure it's not coming from above the tank. I'm also wondering if it could be a saturated Evap canister. Post pics once you pinpoint where it's coming from.

 

Thanks for your input. Couldn’t find my endoscope camera but I stuck my head under the truck and tried to see where it was coming from. It was hard to see but it looked like it was coming from one of the two hoses from the fuel pump. There’s not much room at the top of the tank so it’s still hard to say. I will probably have to drop the tank to locate it.

Is it recommended to replace anything once I drop the tank? Fuel pump…fuel filter?

 

I was able to drop the gas tank. it was a bit tricky, but it was fairly straightforward. There. was a quarter tank and it was still heavy. The top was completely drenched with gas. The leak didn’t appear to come from the fuel pump or gasket area. Possibly from One of the two lines or from the pink plug.

I figured I’d stop and take a break and post my progress. Any comments or suggestions would be appreciated.

 

I'm wondering if you could use low PSI air pressure to check the lines. @reywcms any ideas?

 

You can definitely check the lines with some air pressure and see for leaks. I’d definitely drop a new pump and filter while it’s apart why not

 

Thanks for all for the replies. I took the lines off and used my compressor to try to pressurize the lines but I didn't use the proper nozzle and it was hard to tell. I'll double check tomorrow.

Thanks for everyone's help!!!

 

This is actually your truck telling you to replace the fuel pump with a high flow fuel pump and install a supercharger.

 

This is a stretch but would the emissions warranty cover any of this?

 

From Picture #4, it definitely looks like that line on the right is leaking. It's drenched. If the lines are cheap, I'd replace both and replace the pump like others have said.

Unless you can pinpoint a leak somewhere else more definitively.

 

Just got off the phone with the local dealer. The fuel lines are 200+ miles away. Dealer wants $145 for both lines and they will be here tomorrow. On line they are $35 each but will be available for pickup Tuesday (because of the holiday weekend) which is not gonna work. Fuel Pump was $300+ on line (Fuel Pump Assembly was $450+).

My truck is 6 years old and only has 70K. Dropping the fuel tank was initially intimidating but it was easy enough to do if I need to replace the fuel pump in the future. Supercharger would be fun but definitely not in the budget.

Thanks again everyone

 

That was mostly in jest (and I'm in the same boat man, outside my budget), but applaud you for dropping the tank and handling it yourself. That type of work is outside the realm of most peoples capabilities, especially with the size of this tank.

 

The way to find this type of leak is with a low pressure smoke machine. You use low pressure air mixed with smoke as the indicator. Check out some YouTube.