Vibration while accelerating

Recently bought a 2006 Tacoma PreRunner TR5 (84K mileage). It was a leased vehicle, one owner. Great vehicle but for a vibration while accelerating from about 20 mph on up. It coasts smooth at any speed. I've read other posts here about vibration issues and it seems this is a fairly common problem. The truck has not been modified with suspension mods, etc. Tires are Michelin LTX m/s. No evidence of uneven wear. No off road abuse. Any suggestions or recommendations?

Thanks in advance

 

U-joint, and while you're at it check your rear trans seal. There is a good chance that it's leaking, get the updated seal not the original.
Here is the link about the rear transmission seal : http://www.tacomaworld.com/forum/2nd-gen-tacomas/45728-new-tsb.html

 

mine does it too, usually its because my tires are struggling to grab the road though

 

^^ I would let a mechanic take a look at that.

 

i recently noticed a vibration accelerating and breaking... its more when i accelerate with a slightly heave foot... but as soon as it reaches like 20mph it goes away.... i looked underneath and its not the transmission leak as mentioned above... could it be something to do with the drive shaft maybe ?? i had a 5 series and it would do the same and with time it got worst ... comes out it needed a new drive shaft .... ASGARD any news from the mechanic on what it was for your truck ?

 

^^ Yes, it turned out to be the front u-joint. The transmission leak doesn't cause the vibration, it is just a leak but you have to take down the driveshaft to fix both problems. A bad u-joint causes the vibration, you have 3 on the Tacoma.

 

expensive ???

 

is there any way i can diagnose it or a mechanic has to do it ??? If yes what do i need to look for ? Do you think my truck's symptoms were similar to yours??? were you going through the same thing ?

 

The OEM u-joint costs $60 (part number : 04371‑04030) , but I read a post where a member bought an aftermarket one at Autozone for $15.

 

Good idea thanks

 

i hope its just a u joint and not the shaft

 

the vibration is so low that its almost not there but i know its there i can feel it and its annoying

 

My vibration was much harsher, the whole truck was shaking. Maybe it's not your u-joint. Could be your engine mounts, tires.

 

no the tries were balanced last about 5000 miles ago ... i will get that done first and see if there is any change if not the i will go further ... just dont want it to turn out to be something bad if i can catch it in an early stage.... itll be great

 

Where do you feel the vibration ? Steering, floorboard, seat, etc. ?

 

seat and floor... not in the stearing wheel at all