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
  • CERTIFIED EXPERT
  • 110,175 POSTS
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