Buick Encore: Diagnostic information and procedures
SYMPTOMS - TRANSFER CASE
Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system
functions. Refer to Transfer
Case Disassembled View, Transfer Case Description and Operation, and Rear Drive
Axle Description and
Operation , . All diagnosis on a vehicle should follow a logical process.
Strategy based diagnostics is a uniform
approach for repairing all systems. The diagnostic flow may always be used in
order to resolve a system
condition. The diagnostic flow is the place to start when repairs are necessary.
For a detailed explanation, refer
to Strategy Based Diagnosis .
Visual/Physical Inspection
- Inspect for aftermarket devices, which could affect the operation of the
vehicle. Refer to Checking
Aftermarket Accessories .
- Inspect the easily accessible or visible system components for obvious
damage or conditions, which could
cause the symptom.
- Inspect for the correct lubricant levels and the proper viscosities.
- Verify the exact operating conditions under which the concern exists.
Note factors such as vehicle speed,
road conditions, ambient temperature, and other specifics.
- Compare the driving characteristics or sounds, if applicable, to a known
good vehicle and ensure you are
not trying to correct a normal condition.
Intermittent
Test the vehicle under the same conditions that the customer reported in
order to verify the system is operating
properly.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to
diagnose the symptom:
- Diagnostic System Check - Vehicle .
- Noisy in Drive.
- Noisy When Coasting.
- Intermittent Noise.
- Constant Noise.
- Transfer Case Leak Diagnosis.
NOISY IN DRIVE
Noisy in Drive
NOISY WHEN COASTING
Noisy When Coasting
INTERMITTENT NOISE
Intermittent Noise
CONSTANT NOISE
Constant Noise
TRANSFER CASE LEAK DIAGNOSIS
Transfer Case Leak Diagnosis
READ NEXT:
Transfer case fluid replacement
Removal Procedure
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
.
Place a suitable drain pan under the transfer case.
Fig. 2: Transfer
Transfer case adapter disassemble (MHB)
Fig. 40: Transfer Case Adapter (MHB)
Transfer Case Adapter Disassemble (MHB)
TRANSFER CASE ADAPTER DISASSEMBLE (M7Y, MZ4)
Fig. 41: Transfer Case Adapter
Transfer case identification
Fig. 71: Transfer Case Primary Identification Label
The transfer case primary identification label (1) is located on the rear
extension housing. The transfer case
secon
SEE MORE:
Leak testing
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS
Adhesives, Fluids, Lubricants, and Sealers
REFRIGERANT SYSTEM SPECIFICATIONS
Refrigerant System Capacities
DIAGNOSTIC INFORMATION AND PROCEDURES
LEAK T
Warning
If automatic reversal system
override is active, the window will
not reverse automatically. You or
others could be injured and the
window could be damaged.
Before using automatic reversal system override, make sure that
all people and obstructions are
clear of the window path.
When the engi