DODGE RAM FORUM banner

1 - 4 of 4 Posts

·
Registered
Joined
·
4 Posts
Discussion Starter #1
Hey y'all,

I am new to the forum. I recently purchased a 2012 1500 with 60k miles. It's got the 5.7 and four wheel drive.

The truck has a very noticeable lurch/vibration when rolling at low speeds in drive and reverse. It is perfectly smooth once the accelerator is applied.

The truck idles consistently at about 650 rpm.

I cleaned out the throttle body (it was not very dirty) and had no improvement.

Does anyone know what is causing this issue? My plan is to next replace the plugs.
 

·
Super Moderator
Joined
·
34,458 Posts
Have the plugs ever been replaced? If not they're at 200% of their service life. I have not experienced any lurch myself
 

·
Registered
Joined
·
4 Posts
Discussion Starter #3
I replaced the plugs yesterday. It made no noticeable difference. The ones I pulled out were NGKs, not the OE Champions. They had normal wear and looked fine. I replaced them with OE Champions.

I did notice that one of the coil packs had been replaced with a non-OE AC Delco. Replacing that with an OE pack is my next step.
 

·
Super Moderator
Joined
·
34,458 Posts
My OE plugs were NGKs. I think the coil pack is what I'd look at next; I'm not sure why there'd be a replacement coil on a truck with only 60,000 miles
 
1 - 4 of 4 Posts
Top