Jerks when accelerating in lower RPM's

2015 MITSUBISHI MIRAGE
108,000 MILES • 3 CYL • 2WD • AUTOMATIC
Avatar
CJCJCJ01
  • MEMBER
  • 1 POST
Been doing this for about a year now getting worse. Took to mechanic no code showed up. He charged A/C thinking when the A/C kicks on and off it pulls from the small engine causing the jerking. Seemed to work okay for three -four days now back to doing the same.
Jul 12, 2021 at 3:03 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

Are you only feeling this when the A/C compressor engages and disengages? If it does it with the A/C off as well, has anyone checked fuel pressure to see if there is an issue or for an engine vacuum leak?

Here are a couple of links showing how it is done:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Also, has the vehicle been tuned up (new plugs) or anything electrical been checked?

Let me know.

Joe
Jul 12, 2021 at 9:42 PM
Avatar
CJCJCJ01
  • MEMBER
  • 1 POST
Will keep you updated thanks.
Jul 13, 2021 at 9:59 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.