Re: Analyze this
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Originally Posted by jsbihn
Hummer Jim,
It is a good possibility that the water is AC condensation, but could that be causing the whitish/ tannish smoke?
Also, the mechanic that diagnosed my cats actually is a dealership mechanic for Cheyy/ GMC
Given, the rattle issues wouldnt they sound more like pipes banging?
This actually sounds like you put rocks in a soda can and then you are shaking the soda can
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The exhaust on the 2003 and 04 really can make several odd vibrations and pops and creaking noises but if you are hitting the cats while they are cold and the have a rattle they sound like they are going bad then.
Could the smoke from the brakes be brake dust?
Not sure but it sounds like ceramic pads and shoes are wearing out and dusting. Since you said this only happens at high speed braking and it is not from the tail pipe.
~Richard
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Yellow 2003 H2 Luxury ALPHA , 2" lift, Black Helo Maxx8 20 X 10 Rims, Toyo AT Open Country II LT35/12.50/R20 tires, taillight guards and black LE brush guard, KC light bar w/4 Daylights, Recon Smoked roof lights, Sirius/XM Satellite Radio, Kenwood Head Unit , 4 - 6-1/2 inch Polk Audio Speakers, solid billet tailgate handle,HUMMER H2 Ghost lights ib front doors
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