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2005 gmc envoy_denali_xl
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8 Posts
Discussion Starter #1
All of a sudden, my 2005 Envoy XL Denali started making a noise when switched into 4hi. Sort of a growling sound like a bearing might make. Noise starts as soon as it shifts into 4hi and stops when you shift out. No strange sounds shifting setting still only hear when driving at hi way speeds. 4 wheel drive seams to work other than the noise. Any ideas.
 

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2004 gmc envoy_slt
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14 Posts
When was the last time your transfer case fluid was changed? I remember when I had problems with my 4x4, I simply changed the fluid and everything worked beautiful.
 
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