# '99 chevy s10 zr2 4x4 squealing

**URL:** <https://community.cartalk.com/t/99-chevy-s10-zr2-4x4-squealing/32474>\
**Category:** Maintenance/Repairs\
**Tags:** ford\
**Created:** [June 27, 2009, 5:23pm UTC](https://community.cartalk.com/t/99-chevy-s10-zr2-4x4-squealing/32474 "2009-06-27T17:23:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![giffman36](https://avatars.discourse-cdn.com/v4/letter/g/c5a1d2/32.png) [@giffman36](https://community.cartalk.com/u/giffman36)\
**Post date:** [June 27, 2009, 5:23pm UTC](https://community.cartalk.com/t/99-chevy-s10-zr2-4x4-squealing/32474/1 "2009-06-27T17:23:42Z")

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I have a 99 s10 zr2 when I have driving down the highway going 60 to 75 mph it will start making a squealing noise. The more I slow down the louder the noise gets. If I push the 4x4 button The noise stops then I put it back into 2 wheel drive and its good to go for a while but will happen again I think it might be the vacuum actuator under the battery but not sure. Any help would be much appreciated