WHEN I START MY CAR THE ENGINE RUNS ON FAST IDLE AND THAN SLOW ,MAINLY WHEN CAR IS COLD BUT HAS DONE IT WHEN HOT .
Nov 29, 2012 at 9:16 PM
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.
Advertisement
KHLOW2008
CAR REPAIR CONTRIBUTOR
41,814 POSTS
Hot or cold the engine would increase in rpm when it is started. Only difference is the when engine is hot, it would come down fast whereas on a cold engine, it would take a while.