Codes P0455, 0456 and 0457. Dealership wants to replace gas tank

[Ram2015help]

I have a 2015 Ram 1500, 87,000 miles with all three of these codes. I replaced the gas cap, ESIM and purge canister already. Dealership says I need a new gas tank and is asking right at $4,000. Has anyone else needed to go to that extreme to fix these codes?

 

[PolarisCobra]

I would test the EGR valve first. Not expensive, easy to change. I had one of those codes a few years ago, EGR fixed it. Don't remember which one. Dealer replaced gas cap, did a smoke test which found nothing. Gave me back the truck with no codes, but it came back in a couple of days. I found a you tube video someplace that described an easy test for the EGR valve, and sure enough, that was the problem.

 

[DILLIGAF]

You're getting hosed by a dealer, nothing new.

 

[Daw14]

Try at least one other dealer , or better yet find an independent shop that isn’t looking to ph u .

 

[Ram2015help]

I’m definitely getting a second opinion. Found a guy on YouTube with a shop 45 minutes from my house. He was showing how to fix the exact same codes I have and that it was just a disconnected line.

 

[Atcer2018]

I have a 2015 Ram 1500, 87,000 miles with all three of these codes. I replaced the gas cap, ESIM and purge canister already. Dealership says I need a new gas tank and is asking right at $4,000. Has anyone else needed to go to that extreme to fix these codes?

Ouch! Replace it yourself and save three grand.

 

[BenWade]

I have a 2015 Ram 1500, 87,000 miles with all three of these codes. I replaced the gas cap, ESIM and purge canister already. Dealership says I need a new gas tank and is asking right at $4,000. Has anyone else needed to go to that extreme to fix these codes?

Unless that gas tank is $3,500 just replace it yourself. These dealers are ridiculous

 

[Wild one]

I would test the EGR valve first. Not expensive, easy to change. I had one of those codes a few years ago, EGR fixed it. Don't remember which one. Dealer replaced gas cap, did a smoke test which found nothing. Gave me back the truck with no codes, but it came back in a couple of days. I found a you tube video someplace that described an easy test for the EGR valve, and sure enough, that was the problem.

4th gen Hemi's don't have an EGR valve

 

[GTyankee]

Mopar is selling fuel tanks for $1200 +

Dorman & Spectra are two other considerations

 

[PolarisCobra]

4th gen Hemi's don't have an EGR valve

I'm sure you're right. I believe I meant the purge valve for the evap system. On my truck, its located on top of the engine, in the front. Wasn't expensive, easy to change.

Like this - https://www.autozone.com/emission-c...valve-pv804/664018_0_0?searchText=purge valve

 

[Atcer2018]

Mopar is selling fuel tanks for $1200 +

Dorman & Spectra are two other considerations

Holy crapola! When I replaced mine in 2021 the tank was $265.

 

[indept]

Why did they say to replace tank? Did they do a smoke test and if so, where is it leaking at? Or are they just throwing parts at it at your cost?

 

[GTyankee]

I have to wonder ....

A Ramforum member was told that a Roll Over Valve in the Fuel Tank could cause a back up in Air Pressure Relief.
That Air can't get out, so gas can't go in, except as a trickle.
Also the Roll over valve could not be RESET or Replaced.

Does that mean fuel tripped the Roll Over Valve & that tank is worthless, except for dirty scrap ??

I would have to believe that there is a way to reset the Tip or Roll Over Valve.

A shade tree mechanic friend, used to Trip a friend of his, Tip Over Valve that was in a El Camino.
He would wait until the El Camino's Owner went inside, then he would take the side of his fist & strike the El Camino's sheet metal, right next to the Fuel Filler Door.
That tripped something that caused the Fuel Pump to malfunction, he waited for the owner would come out & try to drive away.
My friend would then go under the hood & make like he was trying to fix the problem.
After a short period of time, he would do what ever he needed to do to reset the Malfunction, it had to be an electric fix to reset it.

I know our Rams are much newer & they have a different technology, but i would think there would have to be a way to reset the Roll Over Valve

 

[Dodge 1500 4X4]

He would wait until the El Camino's Owner went inside, then he would take the side of his fist & strike the El Camino's sheet metal, right next to the Fuel Filler Door.

I believe they called that a Anti Inertial switch that disabled the fuel pump in case of a collision, rear ended side swiped etc.

 

[18CrewDually]

I have to wonder ....

A Ramforum member was told that a Roll Over Valve in the Fuel Tank could cause a back up in Air Pressure Relief.
That Air can't get out, so gas can't go in, except as a trickle.
Also the Roll over valve could not be RESET or Replaced.

Does that mean fuel tripped the Roll Over Valve & that tank is worthless, except for dirty scrap ??

I would have to believe that there is a way to reset the Tip or Roll Over Valve.

A shade tree mechanic friend, used to Trip a friend of his, Tip Over Valve that was in a El Camino.
He would wait until the El Camino's Owner went inside, then he would take the side of his fist & strike the El Camino's sheet metal, right next to the Fuel Filler Door.
That tripped something that caused the Fuel Pump to malfunction, he waited for the owner would come out & try to drive away.
My friend would then go under the hood & make like he was trying to fix the problem.
After a short period of time, he would do what ever he needed to do to reset the Malfunction, it had to be an electric fix to reset it.

I know our Rams are much newer & they have a different technology, but i would think there would have to be a way to reset the Roll Over Valve

The roll over valve you're talking about is in the filler tube at the entry of the tank. If you have a camera bore scope you can go down the gas filler hose and push the center of the valve to reset and open the valve.

 

[DILLIGAF]

I just ripped mine out of the filler tube when I did my flat deck. No more slow fills in winter either...

 

[GreatBu]

When I had this problem it was the fuel filler neck that needed replacing. Was around $40.00 and easy to DIY.

 

[WildcatAKC]

Holy crapola! When I replaced mine in 2021 the tank was $265.

Try replacing the fuel sending unit/ pump. That’s what u did for my 2013 Bighorn

 

[62Blazer]

If they want to replace the tank that means they think the tank itself is leaking. Generally the only time I have seen issues is if the opening around where the fuel pump module sits gets corroded (if the tank is plastic, generally a metal ring molded around the opening that causes issue). Guess there could be a crack somewhere, like around the filler neck??? However on a 2015 model I wouldn't suspect that is the issue and usually something else.
I would probably want a second opinion. If anything and the tank did need replaced, I would at least check with an independent mechanic on the cost. Usually not that big of a job to replace a fuel tank especially on a lift. Even if you had to pay $1,200 for a tank I can't imagine it being $2,800 in labor to do it!

 

[Ram2015help]

I’m going to get a 3rd opinion now. I took it to a mechanic who basically said take it back to the dealer and have them flash the computer? He said that would clear the codes and until then I would always see them. He did not do a smoke test just ran the codes and looked at what I had already replaced. He didn’t charge me so I can’t complain much.