Up next World’s First Full-Manual Valvebody, Four-Speed 68RFE Published on February 06, 2023 Author Mike McGlothlin Tags ECM, epa, fifthgenram, Ram, Share article Facebook 0 Twitter 0 Mail 0 Don’t Get Locked Out! Don’t Get Locked Out! PSA: 2021 and older fifth-gen Ram owners, don’t let your dealer reflash your truck! Tuned fifth-gen trucks receiving factory ECM updates have reported being locked out, with no way back in. Unfortunately, this likely means that having the CP4.2 to CP3 high-pressure fuel pump recall performed on a ’19-’21 truck will mean it gets treated to the reflash. This comes on the heels of the EPA pushing OEM’s to lock down their ECM’s in order to keep aftermarket calibrators out. The best advice? Ask your dealer not to connect or reflash your ECM while in their care. There is no way back in if they update your truck’s engine control module—at least for now. Source: overland-industries.comSubscribe Our Weekly Newsletter Total 0 Shares Share 0 Tweet 0 Pin it 0 Share 0
Turbo Upgrade & Fuel System Protection for the 6.7L Power Stroke ’15 Turbo Install & Preventing All-Out Fuel System Failure From the 5.9L and 6.7L in the Cummins camp to every RPO code Duramax ever produced, […] Mike McGlothlin November 19, 2025 Cover Story Cummins Diesel Cars Diesel Engines Diesel News Diesel Tech / How-To Vintage Diesels
Custom 2021 RAM 3500 Takes the Stage The Proper Mixture of Business and Pleasure Photos by Mach1Media Building trucks can be an enjoyable and relaxing pastime. It offers an opportunity to take […] JOHN MATA JR May 29, 2025 Cummins Diesel Engines Diesel Trucks Dodge Dodge EVENTS FEATURES Ram ram
Chris Voorheis: Adventurer, Off-Road Enthusiast, and the Shell Rotella Truck of the Month Winner Voorheis’ Ground Pounder This month your online votes have selected Chris Voorheis as the Shell Rotella Truck of the Month winner. We congratulate Chris and […] Michael Eckerson November 10, 2023 Cummins Diesel Cars Diesel Engines FEATURES Vintage Diesels
Love 'Em or Hatem Ronnie Hatem’s Bold Diesel Dodge 2500 An Unapologetic Diesel Dodge 2500 Photos by TUCKER HARRIS Ronnie Hatem doesn’t care what you think. With a self-appointed last name like “Hatem,” would you […] TUCKER HARRIS October 30, 2025 Cummins Diesel Engines Dodge Dodge FEATURES Ram
![](https://ad.ipredictive.com/d/track/event?upid=111299&url="https://www.dieselworldmag.com"&cache_buster=1776674677&ps=1)