misfire on cold startup?

2007 TOYOTA COROLLA
232,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
Avatar
YAZIDAN
  • MEMBER
  • 141 POSTS
My car misfires in the morning on cold startup and only when outside temperatures are freezing. The tachometer is around 1,000 RPMs and smell strong gas smell. no codes and check engine light does not flash when it happens.
Mar 27, 2023 at 3:20 AM
Advertisement
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,256 POSTS
This is common when the EVAP canister purge valve sticks open which is common. Here is the location so you can check it out, remove the valve and should not be able to blow through it, if you can the valve is bad and needs replacement. Check out the images (below). Please let us know what happens.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Mar 27, 2023 at 4:38 AM
Avatar
YAZIDAN
  • MEMBER
  • 141 POSTS
Are you talking about the purge solenoid? also, I forgot to mention that the tachometer goes up slowly after it misfire (rough idle) to 1,500 RPMs and when it reaches 1,500 no rough idle.
Mar 27, 2023 at 4:55 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,256 POSTS
Yes, the purge solenoid if it is okay this problem can be a fuel injector stuck open. I would remove all spark plugs and look for the plug at looks different (dark in color) which will be the cylinder that is having the problem. Please let me know.
Mar 29, 2023 at 4:56 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.