Engine just shut down

[OceanRescue01]

Was driving into work this am and came to a stop somewhat quickly (traffic). When I went to go again the engine was off. Lights, radio, dash all on. Just no hamster in the wheel. Popped it in park and started it back up. No issues. It’s happened maybe 3-4 times in the last year or so. Can’t figure it out. Always happens after stopping quickly. Any thoughts? Thanks!


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[Burla]

Gas, Air and Spark.. I'd likely rule out air, but inspect throttle body and air filter for kicks. Replace fuel filter if you haven't. Then you get to spark, run codes, if no codes I would look at ignition as the truck usually "reads" that you turned off the truck on a faulty ignition. Maybe the shiftier as well. It could be something else, but **** gets for real after those. You have a 2013, I believe you have the 30k mile plugs? Something to consider as well. I forget what year they started with the 100k mile plugs..

 

[OceanRescue01]

Yes. Copper plugs for me. Thanks for the info. I’ll start checking off the list as I go here. Appreciate it buddy!


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[Hydrasport]

Looks like you have 2013 5.7. I have had the issue with the transmission going into neutral when quickly stopping and not realizing it when immediately stepping back on the gas. Sounds like you have had a problem before with random engine shut down or stalling when nearly stopping or stopping quickly. Any codes? 6 speed or 8? Does it only occur when stopping quickly?

I had no engine or transmission codes stored on my truck. Even took the truck to the dealer and they could not duplicate the problem and the truck had no stored codes. The reason I bring up a slightly different issue is because the cause may be software related, assuming you have an automatic. To me It feels like the transmission fails to completely downshift and "acts like" it is "stuck" in two gears at once, or lockup converter not releasing causing the engine to stall when the driveshaft stops. I have read that some of these Rams may have an update for the slow or poorly timed downshift issue but that usually causes an unwanted "neutral". Just adding my thought on why your engine may have a random stalling problem. Usually bad plugs or fuel filter issue would cause more than a random issue like you are having and an issue serious enough to stall an engine should set a code.

 

[corneileous]

Sounds like you’ll be cleaning the butterfly plate in your throttle body this weekend. At least I’m almost pretty certain that’s what your problem is. I got rid of it shortly after I did it to mine but my old truck, 08 1500, Hemi, for the last several years I owned it, did exactly that, even under the same exact conditions.

After doing a google search here and there, I found from other forums that what the most likely cause was, was carbon, dirt, and whatever residue being built up on the throttle plate, and when it almost completely closes in a situation like that, it sticks and can’t open in time quick enough, and the motor stalls.

I never got around to doing it before i bought my new truck but because like yours, it never did it a whole lot and the only reason I decided to clean it when i did, was because I was trying to sell it and, I didn’t want it stalling on no one who drove it for a test drive so I bought a can of throttle body cleaner, got some old rags and scrubbed both sides of the plate and the inlet, and as far in as I could reach with the rag.

I ended up selling the truck shortly after that so, I can’t really say that was the problem but I will say that the idle got a little better and smoother. It was pretty filthy. I’d give that a shot.


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