TrailBlazer 2002-2009
The TrailBlazer, originally introduced as an upscale Blazer, was produced from 2002 to 2008 with a powerful I6 engine and with a monster V8 offered in the Trailblazer SS
Platform: GMT 305, 360, & 370.

Transmission Noise

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Old June 21st, 2017, 7:09 PM
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Default Transmission Noise

Last week I purchased a '05 TB LT with 138,000 mile on it. I have put close to 500 miles on it and so far I'm pleased.

I do have a question though. The transmission has an annoying whine to it. The fluid is a nice red color with no burnt smell to it, the shifting is smooth both when babying it or really getting into it. it is just louder than I think it should be. I plan on changing the fluid once I recover from the purchase and registering.

I have searched the forums and the only thing I have found is a reference to an air pump, but this doesn't make sense since the whine is only there when driving.

Any ideas would be greatly appreciated.




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