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2001 Chevy Blazer 4.3 V6 4X4 clicking noise upon acceleratio

Tiny
BUMPIN BLAZER
  • MEMBER
  • 2001 CHEVROLET TRUCK
I have a '01 Chevy Blazer 4.3 V6 4x4, and everytime I take off from a stop a loud metal on metal clicking noise can be heard from what seems 2 be under the driver seat. When the car is parked I grab the intermediate drive shaft, that goes from the transfer case to the front differential, and can slightly turn it and shake it and the noise is similar to noise heard when driving. When on a lift and put in gear accelerating, there is no noise, but when bearing the load of the car itself on ground, it's ridiculously loud. Not too positive if the driveshaft in question is the problem or not, because I cant ride underneath the car when taking off on ground obviously. Could this be a commonly overlooked problem? Or does anyone have any suggestions, I'm open 4 any reasonable solutions!
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Tuesday, February 20th, 2007 AT 10:10 PM

4 Replies

Tiny
CHEVY22
  • MECHANIC
  • 1,375 POSTS
Jst for starters, is the tranfer case disengaged ? I know I know, but just make sure first that you can hear it engage and then disengage and get back to us
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Wednesday, February 21st, 2007 AT 6:42 AM
Tiny
BUMPIN BLAZER
  • MEMBER
  • 2 POSTS
Yes, it engages, but it still makes noise in 2hi or 4hi/lo
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Wednesday, February 21st, 2007 AT 7:09 AM
Tiny
CHEVY22
  • MECHANIC
  • 1,375 POSTS
Ok did you check all of the u joints and the input and output bearings from the transfercase for play
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Wednesday, February 21st, 2007 AT 7:12 AM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Is it like a chirping sound? And only on acceleration?
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Wednesday, February 21st, 2007 AT 8:13 AM

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