2025 Ram 3.6L Pentastar CEL issues

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fromthelakeRam

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Nov 3, 2025
Posts
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Location
Winnipeg, Manitoba, Canada
Ram Year
2025
Engine
3.6 liter V6
Bought a new Ram 1500 this past June. Week later the check engine light comes on. Took it to the dealer, no tech on that day so service rep checked a few things and says it's not serious, should be ok to drive, might even go off on it's own in a day or two.
Sure enough, light goes out a few days later....all good.
Now 5 months later, CEL has come on 5 different occasions. Took it to the shop first 3 times, they read the code(s) cleared and said all is good. 1st time they said it was a software update, 2nd time no reason given. 3rd time service rep tells me it's a rare problem on a few trucks here and there. Tells me not to worry, gives me a copy of "STAR ONLINE PUBLICATION" and case# S2418000012 Rev. A
Symptom/Vehicle issue: Mil on/check engine lamp (CEL) on, engine runs rough.

Bunch of crap on the next page and half about what it is and how to clear. Last page the final line is
"Engineering is investigating at this time. Return vehicle to customer."
So now dealer tells me not to bring it back, they are working on it and will send me a recall notice when they solve it.
My engine is smoooooth, not running rough or any other problem noticed, just that damn CEL light on. Came on again today when I started it to go run an errand.

Seriously this is how Ram takes care of things ? My last three trucks were all Chevy's, but just love the looks of these new Rams. Looks like I'll be going back to Chevy tho, unless they fix this soon.
Already filed a complaint with FCA customer care, they called back to see if I was treated ok, lol. I told the poor girl, I just want my NEW truck fixed, why should I have to put up with this BS. After 5 months my Chevy dealer would of been jumping through hoops to make me happy. Not these Ram guys tho, just go home sir, we will call you when it's fixed, Pathetic is the first word comes to mind.
Now looking to get info on filing a complaint through the government. Wish we had the lemon law here in Canada similar to what you guys have in the US.

I do a lot of winter driving in really remote areas, hard to feel confident with the CEL often on.
New to Ram, my first truck from them, Is this a common thing ? Is customer service always this bad.
 

star_deceiver

Senior Member
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May 18, 2019
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Location
Airdrie, Alberta
Ram Year
2021
Engine
3.6 Pentastar
You’ll be fine. They’ve acknowledged the problem and you’re on the list for it to get fixed. In the meantime, buy a code reader to be sure it’s the same code they’re working on and put a small piece of electrical tape over the annoying light. Call whoever your case worker is once a month until it’s fixed.

Change the oil at max 8000kms. Use the best 5w30 and filters you can find. Tighten the filter cap until it stops and don’t add any after torque. Drain and fill the trans at 50k, pan at 100, repeat. Diffs and tcase every 75k. Buy the Dorman oil cooler assembly. You’ll need it one day.

Oh yeah, go to all the fun places!

IMG_4195.jpeg
 

JoanD

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Joined
Jun 7, 2026
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Location
Lethbridge
Ram Year
2026
Engine
3.6L Pentastar
We bought a new 2026 Ram 1500 Express 3.6 L engine in January 2026. Within 6 weeks, CEL came on numerous times, took it to dealer 5 times and they told us the engine is mis-firing on all 6 cylinders. FCA Canada advised they are aware of problem and we are to be patient. Truck at dealership for 1 month now so no truck and no money we paid cash for truck. UNACCEPTABLE, FCA won't accept a warranty claim so we are stuck. No fix in sight as per FCA.
Garbage warranty - 10 year/160,000 km. Dealership said a number of trucks in Alberta with same issue.
 
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fromthelakeRam

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Joined
Nov 3, 2025
Posts
3
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Location
Winnipeg, Manitoba, Canada
Ram Year
2025
Engine
3.6 liter V6
not sure if this will put you at ease but I can tell you my issue with the CEL has been resolved. Took about 6 months and the CEL coming on and then going off all by itself probably a dozen times.
I was also given a bulletin about the engine running rough, but that never happened. It ran great, just the light on, was your engine actually running rough ? Maybe your issue is more severe.
My dealer never fixed a thing, one morning I went out to drive the truck, noticed quite a few of my settings had changed, figured they did a software download and rebooted my system at some point. Has been 4 months now with no CEL light, love my truck again. FCA is a joke though, no follow up from them or my dealer. Again, love my truck but I was treated a lot better by customer service when I owned other another brand.
Good luck, hope they figure it out for you
 
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