Buick Regal 2018-2026 Service Manual / Engine / Engine Mechanical - 2.0L (LTG) / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC P06DA-P06DC
- DTC P06DD or P06DE
- Symptoms - Engine Mechanical
- Coolant in Combustion Chamber
- Cylinder Leakage Test
- Drive Belt Chirping, Squeal, and Whine Diagnosis
READ NEXT:
DTC P06DA-P06DC
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.
Diag
DTC P06DD or P06DE
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.
Diag
Symptoms - Engine Mechanical
Strategy Based Diagnostics
1. Perform the Diagnostic System Check - Vehicle before using the symptom
tables, if applicable.
2. Review the system operations in order to familiarize yourself with the
SEE MORE:
Cylinder Leakage Test
Special Tools
EN 35667-A Cylinder Head Leakdown Tester
For equivalent regional tools, refer to Special Tools.
NOTE: A leakage test may be performed in order to measure
cylinder/combustion chamber
leakage. High leakage may indicate one or more of the following:
Worn or burnt valves
Broken valve s
Coolant in Combustion Chamber
DEFINITION: Excessive white smoke and/or coolant type odor coming from
the exhaust pipe may indicate
coolant in the combustion chamber. Low coolant levels, an inoperative cooling
fan, or a faulty thermostat may
lead to an "overtemperature" condition which may cause engine component damage.
NOTE:
W
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