Has anyone experienced this?

Malachi · #1 (**permalink**) 02-22-2005, 11:59 AM

The other day I was driving my 2004 Tundra with the OD off. I noticed as I was in 3rd gear, going down a slight grade at 50 mph, with the accelerator pushed just a little off idle, that the truck began a slight bucking sensation. I'm not sure if it is engine or transmission related. My truck has about 3,200 miles. I've never noticed this before but at the same time I usually drive it with the OD on. Has anyone else experienced this bucking sensation in the same situation? If so, does anyone know what the problem is?

JeffD · #2 (**permalink**) 02-23-2005, 11:52 AM

Yes - I have noticed that on both my tundras. It locks the torque converter with just a little throttle pressure and seems to buck and surge a little bit. It only seems to happen going down hills with enough throttle to lock the TC, but not enough to accelerate

Malachi · #3 (**permalink**) 02-23-2005, 12:41 PM

Quote:

Originally Posted by JeffD

Yes - I have noticed that on both my tundras. It locks the torque converter with just a little throttle pressure and seems to buck and surge a little bit. It only seems to happen going down hills with enough throttle to lock the TC, but not enough to accelerate

Thanks for identifying what it is. Is there a fix for this or is it what we should expect the truck to always do.

moosehead9 · #4 (**permalink**) 02-23-2005, 07:00 PM

My Tundra also does this. Most other vehicles with auto trans do this too. The Dodge I had with the auto did the same thing. My Chevy work truck also does this and sometimes it bucks pretty badly. I am sure it is the lock up converter causing this. I am not sure what if anything can be done about it. Ford had a kit out for some of their vehicles a few years back.