Pulsating Vibration in Drivetrain

[jeeps and fords]

So this problem is as far as i can tell in the transfer case or transmission it'll do a pulsating vibration while in park stopped or in drive or reverse with brakes applied. If you grab hold of the either drive shaft you can feel the vibration and it's just more of an annoying noise in the cab that you can barely hear from outside. Any ideas?

 

[nswsparky]

sounds like an engine problem. Check the engine mounts or trans mound

 

[jeeps and fords]

It's an automatic, had the system flushed a few weeks ago but it did it before it and after it...

 

[iracemine]

do a contribution test. I'd bet you have a injector on the way out.

 

[DaveBen]

If you can feel it by grabbing the driveshaft (and it is NOT turning, obviously), then it is in the motor. Do as iracemine suggested.

Dave

 

[jeeps and fords]

Thank you #3 failed the balance/ contribution test now to order new injectors....

 

[DaveBen]

Glad you found it so soon!

Dave

 

[jeeps and fords]

Bought the new injectors and wiring harnesses today, gonna change all of them out tomorrow should be a long day... I'll post back how it goes and if it gets rid of it.

 

[jeeps and fords]

Injectors are done but still have the vibration gonna check the mounts tomorrow...

 

[iracemine]

I heard it takes about a day of HARD driving to get all the air out before it will run right after a injector change.