2002 Volkswagen Golf engine vibrate at idle

2002 VOLKSWAGEN GOLF
50,000 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
SAEEFAN
  • MEMBER
  • 1 POST
engine vibrate at constant interval every 3 sec. the RPM drops (100RPM) momentary and coms back up.
it is visible looking at the engine or the RPM meter.
Dealer claims he can not reproduce the problem.
PS. it sort of disappear when the engine reaches normal operating temp.
Aug 17, 2009 at 9:56 AM
Advertisement
Avatar
DUBTECH
  • ✓ASE Certified Mechanic
  • 159 POSTS
  • ASE Certified Mechanic
Vacuum leaks are very common on these cars and will cause the same symptom.
Look very closely for any broken, torn, or loose hoses.
Even if the plastic boot around your dipstick is broken it will create an intake leak.

Also check for a dirty throttle body.
Aug 17, 2009 at 9:39 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.