# Squealing Emission Pump

**URL:** <https://community.cartalk.com/t/squealing-emission-pump/58907>\
**Category:** Maintenance/Repairs\
**Tags:** tacoma, toyota\
**Created:** [December 19, 2010, 4:24pm UTC](https://community.cartalk.com/t/squealing-emission-pump/58907 "2010-12-19T16:24:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![troop9](https://avatars.discourse-cdn.com/v4/letter/t/439d5e/32.png) [@troop9](https://community.cartalk.com/u/troop9)\
**Post date:** [December 19, 2010, 4:24pm UTC](https://community.cartalk.com/t/squealing-emission-pump/58907/1 "2010-12-19T16:24:19Z")

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The emission pump on my 98 Toyota Tacoma squeals in the cold weather. Is the any way to lube it to get it to stop squealing?  
  
 I know the dealer would say replace it but when it’s warmer it is fine.

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**Author:** ![jesmed1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/jesmed1/32/2097_2.png) [@jesmed1](https://community.cartalk.com/u/jesmed1)\
**Post date:** [December 19, 2010, 4:30pm UTC](https://community.cartalk.com/t/squealing-emission-pump/58907/2 "2010-12-19T16:30:13Z")

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Are you sure it’s not the drive belt that’s squealing because it’s loose? Rubber belts expand in cold and contract in heat.

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**Author:** ![troop9](https://avatars.discourse-cdn.com/v4/letter/t/439d5e/32.png) [@troop9](https://community.cartalk.com/u/troop9)\
**Post date:** [December 19, 2010, 4:35pm UTC](https://community.cartalk.com/t/squealing-emission-pump/58907/3 "2010-12-19T16:35:22Z")

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I’m confident, based on the sound, but I haven’t confirmed it. I should do that this morning.