Buick Regal 2018-2026 Service Manual / HVAC & Restraints / Heating, Ventilation, and Air Conditioning / Repair Instructions
Buick Regal: Repair Instructions
- Odor Correction
- Refrigerant Recovery and Recharging (R-1234yf)
- Flushing
- Air Conditioning Compressor Oil Balancing
- Air Conditioning System Seal Replacement
- Air Conditioning Evaporator Tube Replacement (LTG)
- Receiver and Dehydrator Replacement
- Heater and Air Conditioning Evaporator Case Replacement
- Air Conditioning Evaporator Replacement
- Floor Front Air Outlet Duct Replacement - Right Side
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Odor Correction
Eliminating Air Conditioning (A/C) Odor
Odors may be emitted from the heat and air conditioning system primarily at
start up in hot, humid climates.
When the blower motor fan is turned on, an unplea
Refrigerant Recovery and Recharging (R-1234yf)
Special Tools
GE-45037 A/C Oil Injector
GE-50078 Electronic Leak Detector
GE-50300 R-1234yf Air Conditioning Refrigerant Recovery/Recharge Cart
GE-50744 A/C R-1234yf PAG Oil Injector Hose
GE-507
Flushing
Tools Required
GE-45268 Air Conditioning Flushing Adapter Kit
GE-41447-a Leak Detection Dye
GE-50078 Electronic Leak Detector
GE-50300 Air Conditioning Service Center for HFO1234-yf
General Info
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Crankcase Ventilation System Description
General Description
A crankcase ventilation system is used to consume crankcase vapors in the
combustion process instead of venting
them to atmosphere. Fresh air from the intake system is supplied to the
crankcase, mixed with blow by gases and
then passed through a calibrated orifice into the inta
Drive Belt Chirping, Squeal, and Whine Diagnosis
Diagnostic Aids
A chirping or squeal noise may be intermittent due to moisture on the
drive belts or the pulleys. It may be
necessary to spray a small amount of water on the drive belts in order to
duplicate the customers concern. If
spraying water on the drive belt duplicates the symptom, c
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