RHO engine light

[Lance]

I ordered the RHO in October of 2024 and took delivery in early Jan 2025. I love this trucks looks, features, and performance. I put around 1,300 city/hwy miles on it, when I noticed a check engine light while omw home from school. I stopped by my Dodge dealer right away and was given a rental. I was told the next day after a diagnostic that both catalytic converters were broken apart internally and of course the $12,000 repair is covered under factory warranty. I am currently waiting on the parts that are on back order.

 

[SDMatt]

Thanks for reaching out. Keep us posted on the repair results.

 

[MattH89]

I ordered the RHO in October of 2024 and took delivery in early Jan 2025. I love this trucks looks, features, and performance. I put around 1,300 city/hwy miles on it, when I noticed a check engine light while omw home from school. I stopped by my Dodge dealer right away and was given a rental. I was told the next day after a diagnostic that both catalytic converters were broken apart internally and of course the $12,000 repair is covered under factory warranty. I am currently waiting on the parts that are on back order.

These cats are becoming widespread at this point. I wonder if a recall is incoming.

 

[frogjbm]

I ordered the RHO in October of 2024 and took delivery in early Jan 2025. I love this trucks looks, features, and performance. I put around 1,300 city/hwy miles on it, when I noticed a check engine light while omw home from school. I stopped by my Dodge dealer right away and was given a rental. I was told the next day after a diagnostic that both catalytic converters were broken apart internally and of course the $12,000 repair is covered under factory warranty. I am currently waiting on the parts that are on back order.

Aka melted cats…the engine runs very hot and the belief is the cats sit too close to the turbos. There’s gonna be some massive recalls soon I’m sure of it

 

[Jeffhallphotos]

I ordered the RHO in October of 2024 and took delivery in early Jan 2025. I love this trucks looks, features, and performance. I put around 1,300 city/hwy miles on it, when I noticed a check engine light while omw home from school. I stopped by my Dodge dealer right away and was given a rental. I was told the next day after a diagnostic that both catalytic converters were broken apart internally and of course the $12,000 repair is covered under factory warranty. I am currently waiting on the parts that are on back order.

Did you notice any power restrictions? Mine is in for a new O2 sensor but now I wonder if the CAT is toast

 

[Lance]

Did you notice any power restrictions? Mine is in for a new O2 sensor but now I wonder if the CAT is toast

No I didn’t notice any difference

 

[OldSchool]

I’m hoping it’s just defective cats. They did enough testing on these things in the wild - even here in AZ. I think it would have shown up unless it is a batch of bad cats that are self imploding.

 

[moparfiend]

Good that warranty covers the repair.
But a $12,000 repair?? That is crazy expensive for the cats. Heck the whole engine is under 14k

 

[D&Sadventure]

I don’t think the cats are the cause of the problem. They are the symptom. The injectors are hanging open too much. Whether it’s due to an electronic glitch or poor connection. But that’s just my hunch.
The cats are nothing more than a waste incinerator, and if you throw enough fuel in the fire, you’re gonna burn down the stove

 

[Lance]

Good that warranty covers the repair.
But a $12,000 repair?? That is crazy expensive for the cats. Heck the whole engine is under 14k

Yea it’s insane

 

[frogjbm]

I don’t think the cats are the cause of the problem. They are the symptom. The injectors are hanging open too much. Whether it’s due to an electronic glitch or poor connection. But that’s just my hunch.
The cats are nothing more than a waste incinerator, and if you throw enough fuel in the fire, you’re gonna burn down the stove

Yea that’s another good point. One would think the engineers would have already figured this puzzle out? I agree with you it’s not the cats, it’s too hot, which means fuel is burning and destroying them. They can’t de-tune these trucks, they know that would destroy the brand, so they have to figure this out yesterday!

 

[testerdahl]

Yea that’s another good point. One would think the engineers would have already figured this puzzle out? I agree with you it’s not the cats, it’s too hot, which means fuel is burning and destroying them. They can’t de-tune these trucks, they know that would destroy the brand, so they have to figure this out yesterday!

Engineering is already well aware of what's going on. These things take time to track down especially when you have engines that aren't experiencing this issue. Why are some Hurricanes having an issue while others aren't? That's a tough question for them to solve.

They do extensive testing and my guess is it is a bad batch of parts. It isn't a design flaw or ALL of the Hurricane engines would have this issue.

 

[D&Sadventure]

I don’t think it’s the tune either. Something unintended is hanging the injectors open when they shouldn’t be.

 

[frogjbm]

Engineering is already well aware of what's going on. These things take time to track down especially when you have engines that aren't experiencing this issue. Why are some Hurricanes having an issue while others aren't? That's a tough question for them to solve.

They do extensive testing and my guess is it is a bad batch of parts. It isn't a design flaw or ALL of the Hurricane engines would have this issue.

Good point!

 

[cconnorhtx]

I don’t think the cats are the cause of the problem. They are the symptom. The injectors are hanging open too much. Whether it’s due to an electronic glitch or poor connection. But that’s just my hunch.
The cats are nothing more than a waste incinerator, and if you throw enough fuel in the fire, you’re gonna burn down the stove

Agreed.

On my all of my previous twin turbo BMW M cars and both of my TT 911's, the cats (downpipes) are attached to the exhaust outlet on the turbos themselves. It's typical for catalytic converters to be close to the turbo outlets, if not directly connected to them

 

[testerdahl]

Agreed.

On my all of my previous twin turbo BMW M cars and both of my TT 911's, the cats (downpipes) are attached to the exhaust outlet on the turbos themselves. It's typical for catalytic converters to be close to the turbo outlets, if not directly connected to them

Yup, automakers have been mounting them closer to the engines to thwart off thieves. I first covered this back in 2016: https://www.motortrend.com/features...tic-converter-theft-prevention-on-new-tacoma/

 

[frogjbm]

Yup, automakers have been mounting them closer to the engines to thwart off thieves. I first covered this back in 2016: https://www.motortrend.com/features...tic-converter-theft-prevention-on-new-tacoma/

But do you guys think there is any merit to proximity to turbo outlets? Maybe not, but my concern now is, if the injectors are the culprit, the turbos could fail next.

 

[testerdahl]

But do you guys think there is any merit to proximity to turbo outlets? Maybe not, but my concern now is, if the injectors are the culprit, the turbos could fail next.

I don't. Turbos like to run hot and there's plenty of heat shielding around them to keep the heat from spreading.

 

[frogjbm]

I don't. Turbos like to run hot and there's plenty of heat shielding around them to keep the heat from spreading.

Got it, thanks Tim.

 

[Boostedtoy]

$12k for cats? That is wild. I haven’t checked rare earth metal prices lately but that expense seems crazy!