Transfer Case?

Tiny
GEOLOGIST
  • 2000 CHEVROLET BLAZER
  • 160,000 MILES

I have a 2000 Blazer ZR-2 that has developed a low growl in the trans/transfer case area and a marked decrease in mileage. The mileage dropped from 17 mpg in 2wd to 12 mpg. However, when I shift (push button) into 4wd (on a wet road) the mileage goes back up to 17 mpg. I have checked to see if it really was in 4wd on snow and all four tires turned. What's the problem?

Do you
have the same problem?
Yes
No
Thursday, May 30th, 2013 AT 7:12 AM

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