[kevin albert]

I changed the plugs and cleaned throttle body with new air filter and van
still has a very very slight shake, no codes, wondering if anyone out there
may know whats next i can do to fix this. from what i understand
this engine does not have an EGR.

 

[Long_Voyager94]

How many miles?
Coils ever been changed?

Any shop or mechanic will likely tell you it's normal, but we've found the OEM coils to be subpar in general on Pentastar engines, which in turn causes a mild miss at idle.
Usually upgrading to quality coils (MSD/Accel) solves the issue permanently.

 

[07caravan]

it has 94000 miles on it, i didnt change the coils, does it have an egr, and i was
wondering if the pcv valve could make it do it also.

 

[petr.bratinka]

Could be the engine mounts

 

[07caravan]

cant be the mounts, if it was the shake would be constant, im leaning towards a bad coil

 

[07caravan]

Is there any way i can clean my electronic throttle body were it dont have to be relearned, i want to take it off and clean it but everyone says it will have to be relearned. help please!

 

[petr.bratinka]

cant be the mounts, if it was the shake would be constant, im leaning towards a bad coil

That is not true. If the mount have just small crack then the slight shake will get lost in the vibrations of the moving car. I will post a video what kind of shake mine engine has. I bought new set of mounts, I will change them in the end of the week and the we will see if that helps. However I curious about your problem still, because it might not be the mounts in the end :/.

 

[07caravan]

The mounts have nothing to do with multiple misfires. even i know that, it was the pcv valve creating the misfires i replaced and all is well now.