answersLogoWhite

0


Best Answer

Either the throttle plate is sticking or the idle air control is not responding to ecm signal.

User Avatar

Wiki User

16y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why would a 1993 Buick Lesabre idle at 2000 rmps and then drop after a while?
Write your answer...
Submit
Still have questions?
magnify glass
imp