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Often caused by loose connections
Purpose of using 1839437C94:
Dashboard Warning Light / A/C Trouble Code
Sends this data to the engine control unit (ECU) so it can adjust DEF injection accurately
Kenworth T450 1995 thru 2008
15183759 | Genuine GM® Power Brake Booster Assembly Emission Metering Module Often caused by loose connectionsDescription: A Power Brake Booster Assembly 15183759 (often just called a brake booster) is a key component in a vehicles braking system that helps reduce the amount of physical effort needed to press the brake pedal and stop the vehicle. The brake booster uses vacuum pressure (or sometimes hydraulic or electric pressure) to amplify the force you apply to the brake pedal. Without it, youd have to press the pedal much harder to slow or stop the
