JALOPYJUNK
Member
I was curious if you have a rough idle at times. Sometimes it idles real smooth and other times it's a slight shake. Other times it's like someone pulled a plug wire off.
Could be MDS kicking in. Does the Eco light come on when this happens? Here's an explanation of the system:I get a small miss / shake at idle. Normally after getting off the highway and coming to a stop at a light. It's so minor I tend to dismiss it.
Could be MDS kicking in. Does the Eco light come on when this happens? Here's an explanation of the system:
What Is Hemi MDS?
We explain how Chrysler Hemi MDS cylinder deactivation works, what goes wrong, and how to fix it when it breaks.www.motortrend.com
This feels like a miss that is not turning on a CEL. On a scale of 1 to 10 I would give it a 4 when it happens. I can also hear it in the exhaust and see a rpm change. The dealer is stumped. They have sent the computer data to STAR and everything comes back fine. This truck had the engine replaced at 4400 miles. The new engine has 1700 miles on it. I know this truck is not going to get the best fuel mileage. Today I filled it up and it took 14.9 gallons to go 129 miles. This was about 85 percent city and 15 percent highway. I'm old so I drive this truck like an old lady.Depends on what "rough" is. A definitive miss feeling like an ignition coil unplugged (repetitive "thud thud thud") is not normal. A slight little rumble feeling, especially when in gear is absolutely normal. A V8 is not inherently as balanced as a straight 6 would be and a little bit of a vibration is totally normal. Any V8 I've had is exactly the same. I think a lot of people are paranoid of the "Hemi Tick" and then are hyper sensitive about anything having to do with the engine.
The OP however has had (i believe) 2 engines replaced though and is still fighting something horrible with his truck so I have no doubt his issue is real. Everyone else are likely not.
Depends on what "rough" is. A definitive miss feeling like an ignition coil unplugged (repetitive "thud thud thud") is not normal. A slight little rumble feeling, especially when in gear is absolutely normal. A V8 is not inherently as balanced as a straight 6 would be and a little bit of a vibration is totally normal. Any V8 I've had is exactly the same. I think a lot of people are paranoid of the "Hemi Tick" and then are hyper sensitive about anything having to do with the engine.
The OP however has had (i believe) 2 engines replaced though and is still fighting something horrible with his truck so I have no doubt his issue is real. Everyone else are likely not.