New 2027 TRX at 100 miles not working and no ETA to fix

[808TRXSRT]

AI has been pretty helpful when diving into this issue..

TRX In-Tank Check Valve Behavior


While not a formal recall, TRX forums and Hellcat technicians document a specific fuel pump issue:


Long Crank / "Two-Turn" Cold Starts: The in-tank fuel pump module contains an internal one-way check valve designed to keep 58–60 psi of fuel pressure primed in the rails when the engine is off. In affected trucks, this valve develops an internal leak, allowing fuel to drain completely back down into the tank overnight. When attempting to start, the engine will crank for 4 to 6 seconds or fail the first attempt, then fire immediately on the second push

 

[BRUMTRX]

AI has been pretty helpful when diving into this issue..

TRX In-Tank Check Valve & Secondary Pump Behavior


While not a formal recall, TRX forums and Hellcat technicians document a specific fuel pump issue:


Long Crank / "Two-Turn" Cold Starts: The in-tank fuel pump module contains an internal one-way check valve designed to keep 58–60 psi of fuel pressure primed in the rails when the engine is off. In affected trucks, this valve develops an internal leak, allowing fuel to drain completely back down into the tank overnight. When attempting to start, the engine will crank for 4 to 6 seconds or fail the first attempt, then fire immediately on the second push

Exactly what's happening. I sent dealer videos and it goes back in tomorrow. Hopefully I can it fixed soon. Other than this bullshit start stuff, love the truck

 

[Two]

When attempting to start, the engine will crank for 4 to 6 seconds or fail the first attempt, then fire immediately on the second push

Sounds like I may never notice this potential issue.

I always start a 6.2 (and other FCA/Stellantis vehicles) by doing the flooded start routine, just to prime the oil system. Well if they have been sitting for over 8 hours I do.

 

[TRXforLIFE]

Sounds like I may never notice this potential issue.

I always start a 6.2 (and other FCA/Stellantis vehicles) by doing the flooded start routine, just to prime the oil system. Well if they have been sitting for over 8 hours I do.

Only after you’ve checked all the fluids for the 7th time for the day and flat bed towed the truck to work and back to make sure not to disrupt any mechanical systems.

 

[Two]

Only after you’ve checked all the fluids for the 7th time for the day and flat bed towed the truck to work and back to make sure not to disrupt any mechanical systems.

I'm grateful that there's a built in system to prevent dry starts, so I use it.

Is there a particular drawback that you know of which should make me not use that feature? Okay, I likely won't keep my TRX for life, but like with my other vehicles I treat them as if that was the case.

A future owner will reap the benefits, that's close enough for me. For example, whoever ends up buying my girlfriend's '21 will be better off by her also starting hers that way.

 

[Tom488]

Exactly what's happening. I sent dealer videos and it goes back in tomorrow. Hopefully I can it fixed soon. Other than this bullshit start stuff, love the truck

Try letting the pump run for a bit first, by pressing start twice without putting your foot on the brake, which will run the fuel pump. Once the pump runs its priming cycle (about 3 seconds), then step on the brake and press start again. If that makes a difference, it's further proof that the fuel rail pressure is bleeding out.

 

[BRUMTRX]

Try letting the pump run for a bit first, by pressing start twice without putting your foot on the brake, which will run the fuel pump. Once the pump runs its priming cycle (about 3 seconds), then step on the brake and press start again. If that makes a difference, it's further proof that the fuel rail pressure is bleeding out.

Yeah it is absolutely bleeding out. When i do the prime cycle it starts up every time. But i shouldnt have to do that every start up right lol? Cause I still want to drive the truck, I love it otherwise

 

[BRUMTRX]

UPDATE:

Dealer ordered new fuel pump assembly and will let me know when it comes in, see what happens with a new assembly in it. They don't have a eta for it. But said put a special request in.

 

[RamCares]

UPDATE:

Dealer ordered new fuel pump assembly and will let me know when it comes in, see what happens with a new assembly in it. They don't have a eta for it. But said put a special request in.

If you have not already, feel free to send us a private message so we can connect with a specialist that can asssit with expediting parts.

Diamond
Ram Cares

 

[hellcat_dvl_dwg]

Update:

Picked my truck up today they couldn't find anything wrong with it, of course not. I get to the dealer early this am and the truck fired right up. But drove it around today to work and to dinner with my wife and same shit is happening. I videoed everything this time to show them what is going on since they couldn't mimick it. Its really frustrating at this point because back to the dealer it goes tomorrow. Such a inconvenience.

Here is the video of what the truck does

TRX Rough Start

Ho-Lee Puq dude!!! This is crazy.

 

[hellcat_dvl_dwg]

I think I'll contact FORE and see if they have a better pump off the shelf and just swap it out from the jump so I don't have to worry about it. No way in hell I'll have waited all this time, spent all this money for it to just sit at the dealer over and over again. I don't understand how a vehicle that is made to be on public roads, driven around thousands of people, isn't scrutinized more for proper "workability", simply from a safety standpoint. BONKERS

 

[BRUMTRX]

I think I'll contact FORE and see if they have a better pump off the shelf and just swap it out from the jump so I don't have to worry about it. No way in hell I'll have waited all this time, spent all this money for it to just sit at the dealer over and over again. I don't understand how a vehicle that is made to be on public roads, driven around thousands of people, isn't scrutinized more for proper "workability", simply from a safety standpoint. BONKERS

Very frustrating, dealer has been great about it. But like what the F haha. I hope everyone else doesn't have issues down the road like this. Wish they had a upgraded fuel pump out id pay the extra money knowing that its right and not gonna fail again. Like I said love the truck other than this BS

 

[hellcat_dvl_dwg]

Very frustrating, dealer has been great about it. But like what the F haha. I hope everyone else doesn't have issues down the road like this. Wish they had a upgraded fuel pump out id pay the extra money knowing that its right and not gonna fail again. Like I said love the truck other than this BS

I'm going to reach out to my POC at FORE Innovations later today. I'll reply back here and let you know what they say about an upgraded fuel pump.

 

[BRUMTRX]

I'm going to reach out to my POC at FORE Innovations later today. I'll reply back here and let you know what they say about an upgraded fuel pump.

Please do thanks

 

[BusaDave]

Please do thanks

I am picking up my truck early next week when it arrives and this will be a good alternative. Hopefully mine will not have some of the issues we are seeing however, no problem with going with aftermarket for better reliability.

 

[-Vanguard-]

Only after you’ve checked all the fluids for the 7th time for the day and flat bed towed the truck to work and back to make sure not to disrupt any mechanical systems.

Just spat out my coffee reading this. LMAO

 

[green02crew]

Got confirmation from the dealer today, fuel pump failure due to check valve. Mechanical fuel pressure gauge read 86psi running and 0 when shut off, did not retain pressure at all. Parked facing downhill it does better than parked facing uphill. There is already a new part number superseding the current fuel pump part.

 

[-Vanguard-]

Got confirmation from the dealer today, fuel pump failure due to check valve. Mechanical fuel pressure gauge read 86psi running and 0 when shut off, did not retain pressure at all. Parked facing downhill it does better than parked facing uphill. There is already a new part number superseding the current fuel pump part.

The silver lining is this is a known problem in lots of hellcat powered cars. Just unlucky.