View Full Version : GMC Sonoma 2000

08-01-2008, 06:25 PM
What does mutiple misfire mean,:confused: and what causes it?

08-01-2008, 08:51 PM
Hi pepsi2,

Multiple misfire means that more than one cylinder is misfiring. Many different things could cause this condition. You should pick up a copy of the Haynes OBD-II and Electronic Engine Management System manual (no. 10206). It's more comprehensive than the engine management system chapter in a regular repair manual, and it will help you understand how the system works and how to go about diagnosing a problem like you are experiencing.