Shaking issue/tuning

I’ve been telling you . Try AT fluid change first. Not flush. You’re way passed due for AT fluid change anyway .

 

Tune it, most tuners will let you test drive the tune. I bet that a tune takes care of it.

 

I did check these out, but it did not seem to have any play on them at all.

 

yes, I was thinking of doing this.

 

My last transmission oil change was at 85,000 miles. I’m only at 113,000 right now

 

Ok. Hope you get to the bottom of this

 

The next thing I would do is pull the rear drive shaft and see if there as any binding in the yolk , sometimes the joints can have some binding and that will cause vibration . I did some work on my companies Nissan Frontier at about 90 k and the joints didn’t have play but they were binding at a certain angle .Those needle bearings in the U joints are tiny and do wear out sooner or later . They need to run smooth , otherwise they vibrate.

 

I’ll have to look in the the U joints bearings.

 

Sometimes the simplest stuff causes the most disruption. I like to always check the simple mechanical stuff first before I look into big stuff .

 

so I decided tonight on Christmas Day to run down the road and get rid of some trash. I noticed this a couple of days ago, but I didn’t pay any much attention to it when I use the truck code without letting it warm up, there is no vibration at all whatsoever but once the truck warms up, the vibration starts.

 

I’d put in up on stands. Check the brakes quick. Wouldn’t suspect this is the issue. Inspect the tires, ball joints , drive shaft for sure. If everything seems fine, take it to a professional.

 

Does it still do it in 4H?

 

Yes it does.

 

I took it to a mechanic the day before yesterday and yesterday I got the call back to come. because they couldn’t find nothing wrong with it. They said they plugged it in and so on and they couldn’t find nothing and even took it on a 12 mile drive. So I left that mechanics shop and brought it to another one and now I wait the phone call today to see if they find anything.

 

I don’t know ‍

 

@Ecko380 . I watched this today and I’m reminded of this thread. https://youtu.be/NwT9rM5b4po?si=fZeSqCyR7dwrMLve

 

OK, I will check it out. Thank you.

 

I got my truck back from the second mechanic. He could not find any thing wrong with it and every thing seems to be ok. He even put it on the lift and still could not find anything wrong with it. He also pluged the truck to the computer to see if he could find any error codes and he couldn’t find any. He also took it on a 12 mile test drive to see if there were any problems. Lastly he reflashed the transmission this seemed to resolve it but I still need the tune.