First post...Bad vibes please help

[wrd1972]

Hello all, I have an 05 TB vortec v6.
The problem is when you turn the steering wheel slightly to the right you get hum and vibes which raise in frequency when speed increases. If you drive perfectly straight it is silent and has no vibes.
It is most noticable between 45 and 60 MPH. It is super annoying and the dealer is no help.
Again this only happens when you turn to the right.
It shows no signs of noise or vibes whhile turning to the left.
Please help.
Thanks

[ScarabEpic22]

Originally Posted by wrd1972

Hello all, I have an 05 TB vortec v6...

Not trying to be mean, but they dont make a V6 for the Trailblazer. There is the Inline 6 4.2L 4200 Vortec and the 5.3 5300 Vortec V8. Ohh, yea, the 06s have one more powerplant, a variant of the LS2 'Vette 6.0L V8.

Sorry about your problem, but I would recommend as most others on here would is to take it to the dealer and make them sit in the truck with you and duplicate the problem with a service tech in the truck. Shouldnt be a problem seeing as you have an 05. I have an 02 that is out of warrenty.

[wrd1972]

My bad,
I mean the inline six, the vehicle actually belongs to my fater in-law. I usually know what im talking about, I have an 95 z28 LT1 which I have rebuilt my self and IM familiar with engine isues. I also have a lifted Jeep Wrangler so IM very familiar with driveline vibrations. But the problem with this trailblazer really has me stumped and the dealer wont help.
All suggestions are appreciated.
Thanks

[Robert1010]

[quote=wrd1972]Hello all, I have an 05 TB vortec v6.
The problem is when you turn the steering wheel slightly to the right you get hum and vibes which raise in frequency when speed increases. If you drive perfectly straight it is silent and has no vibes.
It is most noticable between 45 and 60 MPH. It is super annoying and the dealer is no help.

There are two very common vibration's on Trailblazers. Try this:

1. On the hood prop rod put a piece of rubber fuel line over the rod where it hits the fan shrould.

2. Drive with 2 feet when you feel the vibration use your left foot to lightly press the brake pedal (keep rt foot on gas). This will unlock the tourque convertor clutch.

Try these tests.

Rob