# 2006 Mazda 6 4thgear problem. HELP!

**URL:** <https://community.cartalk.com/t/2006-mazda-6-4thgear-problem-help/85747>\
**Category:** Maintenance/Repairs\
**Tags:** mazda6\
**Created:** [July 2, 2014, 4:42am UTC](https://community.cartalk.com/t/2006-mazda-6-4thgear-problem-help/85747 "2014-07-02T04:42:27Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![twingerb](https://avatars.discourse-cdn.com/v4/letter/t/7c8e57/32.png) [@twingerb](https://community.cartalk.com/u/twingerb)\
**Post date:** [July 2, 2014, 4:42am UTC](https://community.cartalk.com/t/2006-mazda-6-4thgear-problem-help/85747/1 "2014-07-02T04:42:27Z")

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I have a 2006 Mazda 6 that ive owned for a year now. It has this random problem tho… when accelerating into 4th gear it makes a horrendous racket like the bottom is falling out of the car or something and sorta jerks. it has been doing this a long time. other than that it drives fine! i have no mechanical knowledge about cars so im totally clueless! this seems to happen when accelerating on an incline.

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**Author:** ![Triedaq](https://avatars.discourse-cdn.com/v4/letter/t/65b543/32.png) [@Triedaq](https://community.cartalk.com/u/Triedaq)\
**Post date:** [July 2, 2014, 5:24am UTC](https://community.cartalk.com/t/2006-mazda-6-4thgear-problem-help/85747/2 "2014-07-02T05:24:43Z")

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My guess is that you are lugging the engine when accelerating in 4th gear on an incline. Shift into third gear and you won’t have the problem. I don’t know how many forward speeds your Mazda has, but I think you may be shifting up into 4th at too low a speed.

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**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\
**Post date:** [July 2, 2014, 6:02am UTC](https://community.cartalk.com/t/2006-mazda-6-4thgear-problem-help/85747/3 "2014-07-02T06:02:33Z")

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Does this happen _during_ the shift into 4th or after the shift while _running_ in 4th?

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**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\
**Post date:** [July 2, 2014, 7:10am UTC](https://community.cartalk.com/t/2006-mazda-6-4thgear-problem-help/85747/4 "2014-07-02T07:10:01Z")

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It is a stick shift, right?