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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ACDelco Gold 15-51107 (19189478) Engine Coolant Temperature Engine Shut Down Switch

ACDelco Gold 15-51107 (19189478) Engine Coolant Temperature Engine Shut Down Switch

Product ID: 15632740

Details

Brand
ACDelco
Item Weight
0.03 Kilograms
Item dimensions L x W x H
2.5 x 1.7 x
Material
Metals or
Style
Modern

🔋5V max supply voltage

⚙️Precision flange mount fit

🌡️Up to 230°F temp rating

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€ 54.91

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Description

🌡️ Stay cool, stay ahead — the smart switch your engine deserves!

SEAMLESS OEM FIT - Engineered to match exact factory specs for flawless installation and performance.
HIGH TEMP ENDURANCE - Operates reliably up to 230°F, safeguarding your engine under intense conditions.
ANALOG OUTPUT PRECISION - Delivers accurate temperature readings for optimal engine management.
COMPACT DURABLE DESIGN - Machined exterior with a sleek 2.5 x 1.7 x 1.7 inch profile built to last.
PREMIUM AFTERMARKET RELIABILITY - ACDelco’s trusted quality ensures your engine’s temperature sensor never misses a beat.

The ACDelco Gold 15-51107 Engine Coolant Temperature Shut Down Switch is a premium aftermarket replacement sensor designed for precise temperature monitoring. With a robust flange mount design, 5V max supply voltage, and a high operating temperature rating of 230°F, it ensures reliable engine protection and seamless OEM fitment. Trusted by professionals and backed by strong customer reviews, this compact analog sensor is essential for maintaining optimal engine performance.

Specifications

ASIN	B001DREIF2
Best Sellers Rank	#62,054 in Automotive ( See Top 100 in Automotive ) #49 in Automotive Replacement Coolant Temperature Sensors
Brand Name	ACDelco
Customer Reviews	4.4 4.4 out of 5 stars (402)
Global Trade Identification Number	00707773505380
Included Components	Performance Parts - Underhood; Engine Management; automotive-engine-coolant-temperature-sensors
Item Dimensions	2.5 x 1.7 x 1.7 inches
Item Type Name	Sensor
Item Weight	0.03 Kilograms
Manufacturer	ACDelco
Material Type	Metals or Ceramics
Maximum Supply Voltage	5 Volts
Model	19189478
Mounting Type	Flange Mount
Output Type	Analog
Part Number	19189478
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Temperature
Style Name	Modern
UPC	707773505380
Unit Count	1.0 Count
Upper Temperature Rating	230 Degrees Fahrenheit
Warranty Description	24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.

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