Feel of being bump from the back

DeNz

New member
Hi guys,

Do any of you noticed while on stop and foot on brake pedal somethimes you feel being bump once from the back? I also noticed this when releasing my break and vehicle start to move forward. Its like there was some body suddenly hit you.

Thanks.
 
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yea i felt it, my newer model tacomas did it too.

its just the driveline and axle moving one way when you stop, and then when you move forward it moves back another way. just what happens in a RWD/4WD vehicle like ours... altho my IS doesnt do it.. and thats rwd..
 
Yea I have a 2007 runner and it's driving me crazy. Toyota knows about it and can't seem to come to a solution. I called and let them know that it was unacceptable on a 30 thousand dollar vehicle. They were sympathetic but offered nothing more.
 
i find that it lessens under easy driving i.e smooth easy acceleration and smooth easy stops.
driveline clunk, u are my bithc.
 
I agree there are ways to minimize it, but in as nice a vehicle as the 4runner is this just pisses me off. I'm a dyed in the wool Toyota fanatic but they need to do something about the clunk.

I had a 2000 Tacoma and a 1998 P/U before and didn't have a problem. The clueless service rep just says "son, that a normal characteristic of the vehicle." Give me a break! :rant:
 
teamblend said:
altho my IS doesnt do it.. and thats rwd..

It's axle wrap. The IS doesn't do it because it has independent rear suspension, whereas the 4Runner has a solid axle.
 
axle wrap? I've never heard of that before. I thought it was the slider sleeve of the driveshaft sticking?
 
First post - you guys are great and put together a great site that has helped tremendously since buying my 07 4Runner. I bought my Runner as the result of being rear ended, so the first time a few days ago I experienced this clunk in traffic, I knew right away what it was. So glad I found this site - thanks.
 
nc211 said:
axle wrap? I've never heard of that before. I thought it was the slider sleeve of the driveshaft sticking?

It's when the entire axle housing rotates when you come to a stop. Some have reported that the thump no longer exists when the mount (don't know the proper name off the top of my head), but it's like a trailing arm and it bolts up to the center around the diff and runs along side the driveshaft up to the frame. The thump that it's felt is from the slip yoke not sliding smoothly, which caused by axle wrap.
 
I have noticed that when I grease up my zerk fittings every oil change their is no thud. Right around 3k is when the thud comes back. Just make sure you grease up them yokes, 7 of em. ;)
 
Hello,

No issues here after 37,600 Miles. Every 5K miles, the driveline was lubricated. I did have the driveline clunk issue when the truck was new, but after the truck reached 20K miles, it has disappeared.
 
I've noticed the same clunk. Good to see that it's not an issue specific to just me.
Another thing I can't seem to get used to is that when I'm sitting at a red light or whatever and the A/C compressor kicks in, I have to have my foot extra hard on the brake to keep it from rolling. This can be disconcerting in traffic.
On a funnier note, I was driving through a parking lot, coasting in gear, when I came to a rise in the pavement. I didn't hit the gas, because I was not really paying attention, and all of a sudden I felt a BIG clunk, and the truck went right up the rise. I was sure Someone had run into me or I had rolled back into them. I figured out, though, that the "hill assist" had kicked in and pulled me up the hill. LOL
 
Have the dealer grease your drive line every time its in the shop

I have a V6 4X Limited and I have a standing instruction with my dealer.

Grease the Drive Line every time its in the shop

I never feel it anymore

joe
 

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