How does my vehicle’s AC system work?

The AC compressor pressurizes refrigerant gas, which moves to the condenser. The gas releases heat, condensing into a high-pressure liquid. After cooling, the liquid passes over evaporator coils to cool the air as it is blown through the vents.

What are the signs the system needs service?

Common indicators of an air conditioning system in need of service include warm and/or weak airflow through the vents, frequent on/off cycling of the system and a strange or musty odor.

Is the puddle of water under my car a sign of AC problems?

Not necessarily. Condensation typically builds up on the AC evaporator and the water is drained at the bottom of the vehicle. That’s normal, but a larger puddle combined with reduced AC performance could indicate a problem.

Does low refrigerant mean there’s a leak in the system?

In most cases the answer is yes. AC systems in older cars will experience refrigerant leakage over time, but a later-model vehicle that needs continual refrigerant recharging typically indicates a leak.

Can a new cabin air filter improve AC performance?

Yes. A very dirty or clogged cabin air filter can reduce the airflow of the AC system, reducing its cooling efficiency and making the system work harder than normal. Periodic cabin filter replacements help the AC system keep its cool.

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15-73952 (89018374) Heating and Air Conditioning Panel Mode Door Actuator

15-73952 (89018374) Heating and Air Conditioning Panel Mode Door Actuator

Product ID: 4617352

Details

Brand
GM GENUINE
Exterior Finish
Plastic
Inlet Connection Size
3.7 Inches
Inlet Connection Type
Pin
Item dimensions L x W x H
8.25 x 3.25 x
Material
Plastic

🔧OEM fit for GM models 2003-09

⚙️3.7 in actuator arm length

🌡️Precise HVAC airflow control

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€ 115.60

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Upgrade your ride’s climate game with GM’s precision airflow maestro!

EASY CALIBRATION - Supports straightforward HVAC recalibration to restore perfect airflow direction without guesswork.
PRECISION OEM FIT - Engineered to seamlessly replace original GM HVAC mode door actuators for 2003-09 Silverado, Sierra, and more.
COMPACT LIGHTWEIGHT - Weighing just 6.9 oz with a slim 8.25 x 3.25 x 8.75 inch profile for hassle-free installation in tight engine bays.
VERSATILE APPLICATION - Compatible with multiple GM models and can double as a blend door actuator for advanced climate control setups.
DURABLE KOREAN MANUFACTURING - Built with high-quality plastic components ensuring long-lasting performance under all climate conditions.

The GM Genuine Parts 15-73952 HVAC Mode Door Actuator is a factory-recommended replacement part designed for GM trucks and SUVs from 2003 to 2009. Featuring a 3.7-inch actuator arm and durable plastic construction, it ensures precise control of airflow direction within your vehicle’s heating and air conditioning system. Manufactured by ACDelco in Korea, this actuator guarantees OEM-level fit, function, and longevity, making it a trusted choice for restoring optimal climate comfort.

Specifications

ASIN	B001S8F2V0
Best Sellers Rank	#105,514 in Automotive ( See Top 100 in Automotive ) #115 in Automotive Replacement Heater Blend Door Levers
Brand Name	GM GENUINE PARTS
Connector Type	Pin
Customer Reviews	4.3 4.3 out of 5 stars (920)
Exterior Finish	Plastic
Global Trade Identification Number	00021625560397
Included Components	ACDelco - Actuatormode Con (Slp) (15-73952)
Inlet Connection Size	3.7 Inches
Inlet Connection Type	Pin
Item Dimensions	8.25 x 3.25 x 8.75 inches
Item Type Name	ACDelco - Actuatormode Con (Slp) (15-73952)
Item Weight	0.43 Pounds
Manufacturer	ACDelco
Manufacturer Part Number	89018374
Manufacturer Warranty Description	12 Months / 12,000 Miles (Parts Only)
Material Type	Plastic
Model Number	73952
Number of Ports	2
Outlet Connection Size	3.7 Inches
Outlet Connection Type	Pin
Size	8.25 x 3.25 x 8.75 inches
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	GM
UPC	021625560397
Unit Count	1.0 Count
Valve Type	actuator valve

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