1991 Honda Accord Engine Idle

Tiny
FINSRBACK
  • MEMBER
  • 1991 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 103,000 MILES
While car is idling it bucks back and forth, RPM is below 1 runs fine when you're driving but when I stop at sa a light it idles terrible, car sat for 3 years, I had things repaired it ran fine, then started to idle bad, I've gone the good gas route and nothing, someone mentioned vacum, even if I give a little gas at idle to bring up RPM's to 1 still feels like engine is bouncing back and forth, RPM needle bounces up and down below 1
Thursday, January 1st, 2009 AT 9:52 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi finsrback,

When the idling speed is erratic, it usually is caused by
1. Clogged air passages through throttle body and IAC ( EACV ) or vacumn leakages.
2. Imporper adjustment of idle adjust screw.
3. Tight valve clearances
4. Loose timing belts.
5. Loose distributor rotor arms, spaark plugs and wires.
Was this
answer
helpful?
Yes
No
Sunday, January 4th, 2009 AT 9:40 AM

Please login or register to post a reply.

Related Engine Idle Erratic Content

Vacuum Leak Test and Repair
VIDEO
Vacuum Leak Test and Repair
Instructional repair video
Idle High
GUIDE
Idle High
Intermittent sensor failure or shorting can cause the computer to act strange with unusual side effects, these problems are particularly tough to diagnose. The computer...
VIEW MORE