# My car keeps jerking with my ac on

**URL:** <https://community.cartalk.com/t/my-car-keeps-jerking-with-my-ac-on/155612>\
**Category:** Maintenance/Repairs\
**Created:** [December 31, 2019, 3:50am UTC](https://community.cartalk.com/t/my-car-keeps-jerking-with-my-ac-on/155612 "2019-12-31T03:50:44Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![lagi.galoia\_161499](https://avatars.discourse-cdn.com/v4/letter/l/bbe5ce/32.png) [@lagi.galoia\_161499](https://community.cartalk.com/u/lagi.galoia_161499)\
**Post date:** [December 31, 2019, 3:50am UTC](https://community.cartalk.com/t/my-car-keeps-jerking-with-my-ac-on/155612/1 "2019-12-31T03:50:44Z")

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My 2014 Chevy Malibu Eco keeps jumping when these is on. This only happens when I press the accelerator. This only started happening after I got my engine oil changed a couple of weeks ago.

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [December 31, 2019, 3:55am UTC](https://community.cartalk.com/t/my-car-keeps-jerking-with-my-ac-on/155612/2 "2019-12-31T03:55:25Z")

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First off, make sure the engine oil level is correct. Check the dipstick.

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**Author:** ![lagi.galoia\_161499](https://avatars.discourse-cdn.com/v4/letter/l/bbe5ce/32.png) [@lagi.galoia\_161499](https://community.cartalk.com/u/lagi.galoia_161499)\
**Post date:** [December 31, 2019, 3:58am UTC](https://community.cartalk.com/t/my-car-keeps-jerking-with-my-ac-on/155612/3 "2019-12-31T03:58:23Z")

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Hi yes the engine oil is at the correct level

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [December 31, 2019, 4:04am UTC](https://community.cartalk.com/t/my-car-keeps-jerking-with-my-ac-on/155612/4 "2019-12-31T04:04:41Z")

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It’s probably going lean due to an air leak that was inadvertently introduced during the oil change. A fuel trim test would be the best way to confirm that theory. Prime suspects are a vacuum hose was disconnected, a problem w/the pcv valve or hoses, the vacuum hose to the brake booster, or the path from the air-cleaner to the throttle body got repositioned and now has a leak. .

The reason it occurs when the AC is switched on is b/c that loads the engine, and an engine under load is more sensitive to a lean condition.

If you got your oil change at a good inde shop, take it back there. If not, locate a good inde shop.

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**Author:** ![lagi.galoia\_161499](https://avatars.discourse-cdn.com/v4/letter/l/bbe5ce/32.png) [@lagi.galoia\_161499](https://community.cartalk.com/u/lagi.galoia_161499)\
**Post date:** [December 31, 2019, 4:09am UTC](https://community.cartalk.com/t/my-car-keeps-jerking-with-my-ac-on/155612/5 "2019-12-31T04:09:31Z")

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Okay thank you! I’ll try that