My truck has developed this ungodly shudder when going to throttle at about 30mph. Feels like going over rumble strips. Shakes the whole truck. Is this the transmission shudder I have been reading about in these posts?? I notice it more on slight inclines. I have a 97 4.6 auto with tow package.
It has been doing this since changing my transmission fluid with a synthetic blend mid summer. Should I go back to non-synthetic?
Otherwise this transmission shifts great (I have the chip) and I have no other problems with it.
Any EXPERT advise would be greatly appreaciated.

 

bACK TO THE TOP... ANYONE????

 

What type of fluid did you use? Did it have a MERCON or MERCON V rating?

Mark

 

It actually had a rating for both. I only drained the T/C though because I was on the road. It was really hot where I went (Texas in August) and I thought changing half the fluid would be better then nothing.
I already have the filter and will be doing a complete change this weekend. Don't want this to turn into a rebuild...