Buick Regal: Description and Operation
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Cooling Fan Description and Operation
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
Cooling System Description and Operation
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
Firing Order and Cylinder Identification
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
SEE MORE:
DTC B0016, B0018, B0023, or B0025
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
Thermostat Bypass Hose Replacement (2.0L LTG)
Preliminary Procedures
1. Drain the cooling system.
2. Radiator Inlet Hose @ Water Outlet - Remove.
Thermostat Bypass Hose Clamp [2x]
Procedure
Hose Clamp Replacement Guidelines - Spring Type
Thermostat Bypass Hose
Procedure
1. Radiator Inlet Hose @ Water Outlet - Install.
2. Fill
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