Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Functional Test - HVAC System - Automatic
1997 Oldsmobile LSS V6-3.8L VIN KSECTION Functional Test - HVAC System - Automatic
Functional Test (1 Of 2):
Functional Test (2 Of 2):
^ Engine warm and running at idle.
^ Temperature outside vehicle at 6°C (43°F) or higher.
Important
1. If the engine was recently running, a purge delay of approximately 20 seconds may be encountered before a selected mode is activated. This delay is normal and is designed to prevent windshield fogging.
2. To prevent windshield frosting during cold start up and cool outside temperatures, the system delays operation modes until the engine Is warm (except when defrost is selected).
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.