Chrysler / Dodge / Jeep Fan Adjustment Service – MoPower ECU Programming

Many Chrysler, Dodge, Jeep, and Ram vehicles are programmed from the factory to let engine temperatures run high before the fans activate. This often leads to heat soak, reduced performance, and long-term reliability concerns. Our Fan Adjustment service recalibrates your PCM/ECU to lower the fan-on temperature, helping your engine stay cooler, more consistent, and more reliable in any driving condition.

Why Choose a Fan Adjustment?

• Reduces engine operating temps to prevent heat soak during daily driving, towing, and racing
• Improves reliability and longevity of gaskets, sensors, and electronics
• Provides more stable performance in hot climates and stop-and-go traffic
• Enhances throttle response and overall drivability when engine bay temps rise
• Perfect complement for HEMI, Pentastar, and SRT performance builds

MoPower Fan Adjustment Features

• Custom ECU/PCM flash with lower fan activation thresholds
• Software-only solution – no aftermarket modules or wiring changes needed
• Works with most Chrysler, Dodge, Jeep & Ram models (2006–2023+)
• Compatible with 3.6L Pentastar V6, 5.7L & 6.4L HEMI, 6.2L Hellcat/SRT, and select 2.0–2.4L engines
• Optional pairing with MoPower MDS Delete and custom performance tunes

How It Works

Send your PCM/ECU to MoPower Calibrations, or visit an authorized MoPower tuner. We reprogram your ECU with revised fan strategies so the cooling fans turn on sooner. This is a software-only solution — no add-on boxes or wiring changes required, just cooler, more consistent engine performance.

Important Disclaimer

MoPower Calibrations are sold for off-road use only. All performance calibrations and Engine Control Units installed are at the customer’s own risk. MoPower Calibrations or www.mo-power.com holds no responsibility either implied or otherwise for mechanical, electrical, or other failure when using any aftermarket performance products from MoPower Calibrations. Items sold for off-road use only are illegal in many states and provinces and are intended for racing vehicles which may never be used on a public road or highway. Not for sale or use in the State of California.

The MoPower Difference

Protect your Chrysler, Dodge, Jeep, or Ram from excessive heat with a MoPower Fan Adjustment. Reduce heat soak, extend reliability, and enjoy cooler, more consistent performance — whether you’re daily driving, towing, or pushing your build at the track.