System Overview
The engine cooling fan system consists of 2 electric cooling fans and 3 fan
relays. The cooling fan relays
are arranged in a series/parallel (S/P) configuration. This allows the engin
Engine Coolant Indicators
The instrument panel cluster (IPC) shows the engine temperature on the
temperature gauge. The
value is sent on the data communication line from engine control module (EC
NOTE: This information is intended as a quick reference for firing
order and
cylinder identification only. The information provided covers many
vehicles and may include some information that does not
WARNING: After deployment, the metal surfaces of the SIR component may
be very
hot. To help avoid a fire or personal injury:
Allow sufficient time for cooling before touching any metal
surface
of the SIR component.
Do not place the deployed SIR component near any flammable
objects.
SIR INFL
The diagnosis and repair procedures in a GM Service Manual contain both
general and specific Dangers,
Warnings, Cautions, Notes or Importants. GM is dedicated to the presentation of
service information that
helps the technician to diagnose and repair the systems necessary for the proper
operation