engine jerk/hiccup at idle

1993 TOYOTA CAMRY
288,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
Avatar
SCOOTER2_MC
  • MEMBER
  • 1 POST
when at idle, about every 5 to 10 seconds the engine makes a jerk, as if spark timing suddenly changed and reset. No "check engine light".

1 year ago, distributor was replaced with new part.
part form reputable local store. Also spark plugs and wires replaced at same time.

I live looked and felt around the many little air hoses and find no leaks.

Possible dirty air idle valve?
Oct 23, 2021 at 8:27 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

Although the check engine light isn't on, there could be codes. Have you tried to retrieve codes? Here is a link that shows how it's done on a Toyota OBD1 system:

https://www.2carpros.com/articles/toyota-trouble-code-definitions-and-code-gathering-method-1990-1995

Also, would it be possible for you to record what it is doing and upload it for me to hear?

Let me know.

Joe
Oct 23, 2021 at 9:57 PM
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.