Chalk another onto the list...
Well, I didn't get around to cleaning the EGR. Want to know why? I encountered another problem on my way home from work yesterday. I was on the freeway doing a modest 72 mph, when all the sudden I had a terrible vibration. This has been an ongoing problem but it has never been this bad. It seemed to start getting worse when I had to pull my buddy out of a mud hole down this nasty ass two track made for quads. That was last weekend. It was coming from the rear so I thought I had kicked a wheel weight or the u-joints were finally going. It did it my entire ride home which is an hour. IT seemed to quit as soon it down shifted to a lower gear or when I let off the gas. When I got home, I put it up on stands and took a look at the u-joints. Holy shit, they were as loose as a working girl's ******. I couldn't believe how much play there was. The one on the back of the drive shaft that connects to the rear diff was missing all the needle bearings inside the cap and had actually worn down the stud on the actual u-joint. I am surprised it didn't break on the freeway leaving me stranded; especially with Michigans ****** roads. (potholes everywhere) So I go to local parts store and buy two new ones to replace both in the back. Drive shaft came off easy, put the one on the rear of the shaft in. The one that connects the shaft to the tranny was sort of a ***** but I eventually got it out. I was about to put the new one in when I noticed a hair line crack running across the circular part of the yoke. So now I have to go the junk yard and see if I can find a new yoke to put in. I didn't want to re-install the cracked one. So right now she is sitting in the garage on jack stands awaiting the new yoke while I'm driving the new Silvy. I just wonder if this was a contributing factor in the bucking/jerking sensation. I guess we'll see.