Slight shudder but smooth idle

Hey guys I get a slight shudder/jostling or what I believe is the engine when at idle. The idle is super steady right around 750. Overall the truck runs great but I’m just curious as to what would cause the shudder with it running so smooth. Timing belt water pump etc just got done as well as spark plugs. Shudder has been there for a long time.

 

2.4, 2.7 or 3.4 motor?

I am assuming that you mean if has a rough feeling in the cab… The 4 cylinders are known for a rough idle in the lower rpms. As a test put a block of wood on a floor jack and put it under the oil pan and lift it slightly to see if the shudder goes away. Motor mounts and trans mounts have a tendency to loose their suppleness over time and transfer more vibrations to the frame.

 

3.4L. Yeah you basically feel the shudder in the seat of the truck. Almost something you would associate with the truck running rough but she purrs pretty smooth which is why I’m confused.

 

Video
What is a Shudder

Probably rocks and shit in your fuel injector baskets
dribble dick

 

The engine slightly moves, shakes, vibrates etc. similar to what you would have with a misfire or running rough. Not sure it would even show up on camera but I’ll see if I can get something.

 

@ztwatson Can you send over a video clip? I had a rough idle that was turned out to be a dirty Throttle Body. I cleaned up the TB and the idle smooth out. Maybe that's the issue???