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No airflow from specific vents or clicking noise behind dashboard

Q: What are the symptoms of No airflow from specific vents or clicking noise behind dashboard in Dodge Ram 2500?

No cold air from vents. Different temperature on both sides of the cabin. Irregular A/C operation. Weak or no heating in winter

Q: How to fix No airflow from specific vents or clicking noise behind dashboard in Dodge Ram 2500?

Remove the blower from the bottom (without tearing the board), pull out the broken flap. Install the HeaterTreater kit with metal axle. Grand Cherokee WK2: a method of cutting out a window in the heater housing instead of dismantling the board for 10-12 hours. HeaterTreater.net - the only permanent solution for RAM/Jeep. The factory plastic axle always breaks eventually. Metal = once and for all. Savings vs. dismantling the board: PLN 1,500-3,000.

in Dodge Ram 2500 (2009-2023)

Symptoms

No cold air from vents
Different temperature on both sides of the cabin
Irregular A/C operation
Weak or no heating in winter

DTC error codes

Blend door fault

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Technical diagnosis (Premium)

Recognized technical fault:

Auxiliary controller voltage instability detected

Technical analysis

Detailed analysis of HVAC controller operation parameters, CAN bus data readings, and diagnostic signal waveforms. Purchase PRO access or log in to read the full fault analysis.

Confirmed solution

Complete step-by-step repair procedure including module non-volatile memory reset, sensor calibration, and correct wiring routing. Unlock the full report to see the instruction.

Parts needed

Filters ferrite anti-interference / noise suppressor
Auxiliary starting battery (depending on cell status)

Workshop hacks

Important workshop tips for mechanics regarding bypasses without expensive control module replacement and manufacturer software service bulletins.

TSB / TPI service bulletins

TSB-24-HVAC-01TPI-2068943/2

A/C Technical Specifications

Układy Heavy Duty

Refrigerant: R134a Amount (g): 850g Oil: - Oil (ml): - ml

See full specification

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No airflow from specific vents or clicking noise behind dashboard

Symptoms

DTC error codes

A/C Technical Specifications

Other problems in Ram 2500

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