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.

General Motors GM Genuine Parts 15-51254 Air Conditioning Evaporator Temperature Sensor

General Motors GM Genuine Parts 15-51254 Air Conditioning Evaporator Temperature Sensor

Product ID: 392447506

Details

Brand
GM GENUINE
Item dimensions L x W x H
15.7 x 3 x 2
Item weight
5 g
Material
Metal Plastic
Style
Modern

🔧Durable, reliable build

⚙️OEM-spec fit & function

❄️Precision temp sensing

ASIN	B0031I9Z4A
Best Sellers Rank	#123,099 in Automotive ( See Top 100 in Automotive ) #49 in Automotive Replacement Ambient Air Temperature Sensors
Brand Name	GM GENUINE PARTS
Country Of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (94)
Global Trade Identification Number	00707773570890
Included Components	Temperature Sensor
Item Dimensions	15.7 x 3 x 2 centimeters
Item Type Name	Temperature Sensor
Item Weight	0.01 Pounds
Manufacturer	ACDelco
Material Type	Metal, Plastic
Model	15-51254
Mounting Type	Surface Mount
Output Type	Push-Pull
Part Number	15-51254
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Temperature
Style Name	Modern
UPC	707773570890
Unit Count	1 Count
Upper Temperature Rating	125 Degrees Celsius

General Motors GM Genuine Parts 15-51254 Air Conditioning Evaporator Temperature Sensor

Details

Details

Description

Specifications

Common Questions