Recent content by CEPhD

Small distinction The 4.0 has a timing chain while the older V6s had timing belts. This, in and of itself, is not a problem, but it is more maintenance that must be done as the belt should be changed at some interval. As far as reliability, perhaps give a slight edge to the chain, but if...

Curious I am really intrigued by this problem. As mentioned several times earlier in this thread, the transmission was designed before WS fluid was the norm. When ours started acting up, I figured I would do a drain and refill and being the cheap-o that I am, went to Wal Mart and purchased...

About 90k for us That is when the trouble started... Does it kind of blow your mind when you say, "Hey, can you change my transmission fluid? I have money." And the service guy at the dealership says, "Sorry it's lifetime fluid. I would prefer to lose you as a customer and not have your...

Vibration I don't buy the engine vibration thing for a couple of reasons. First, the engine passes through this RPM range in all the other gears (and at idle) without issue. Second, for there to be trouble with the V8s and the V6s (two different motors) both at the same points (3-4 and 4-5...

My two Cents In our case (2005 V6-4x4) that the partial fluid exchange has eliminated the issue for us. Granted, I have not pushed my luck and really tried to reproduce the issue by holding it for extended periods of time in the 38-50 mph range. In our normal routes around town at normal...

Michelin LTX M/S 2 FTW!!! I am curious which Michelins you got. Everything I have ever heard suggests the opposite of your experience. I know that Michelin has made some tires in recent years that are OEM on some vehicles. These IMHO do not look to be as well constructed as the "real"...

Fluid Change I totally agree with Ducman's summary. If you put 4 quarts in, then you will for sure have more than enough and some will come out when you pull the check plug. Really the hardest part of this whole mess is pumping the fluid into the tranny. The fill plug is on the top/side of...

Fixed for now... I also did the 4qt drain and refill over the weekend. For now, the problem is gone! I did not notice a particular increase in smoothness overall, but the rumble strip problem is gone. I will update if it returns. Similar to the OP, the problem went away immediately after...

Excellent news I am exceedingly happy to hear this. I appreciate you reporting back with your positive experience. With mine, I must say that it seems less pronounced that it did about a fortnight ago. I was just totally convinced that my TC was fragging and sending metal chunks into the...

Based solely on my interwebs research, it appears that the new Tundra guys with this problem who are getting it fixed under warranty are either getting new transmissions or new torque converters. As I mentioned above, it would appear that the TC is the problem, not the transmission. I am...

Me too I have a 2005 4x4 V6 with about 90k and seem to have developed the rumble strip issue as well. I am curious if the OP has gotten any traction on getting anything figured out. It seems like it must be the "Lock Up" feature of the torque converter in 4th and 5th gears. The vibration...