21N08 is for those with engine shudders. There are several reasons why the PCM may need to be reprogrammed. Good thing I bought the extended warranty. Please register or login to enable Dark Mode. One of the most common issues that you may face is to program 21n08 PCM to reprogram due to engine shudder. If you click them and It involves surveying customers to identify areas where they are dissatisfied and then taking action to improve those areas. Transmission & Electrical Issue - Flashing D, N, and Gears, The wheel nuts for the Expedition 2015 are not compatible with the wheel wrench. Do Not Sell or Share My Personal Information, https://www.f150forum.com/f118/field6275/index152/. Honestly? This removes the shudder. Reaction score. Some specific causes of the engine shudder 21N08 issue may include-. might be auto on/off that truck comes equipped with, There is a new Recall specifically for this. Common transmission issues that may contribute to the engine shudder 21N08 issue include low transmission fluid levels, worn transmission components, or a damaged transmission control module. cam phaser rattles. .any advice? But, this process cant be run in an unauthorized way. . What did you do to your truck today? I scheduled the initial step of the Cam Phaser Reprogramming about three weeks ago. The below is copied and pasted from this thread: 21N08 PCM REPROGRAM DUE TO ENGINE SHUDDER update. In this article, we will discuss the PCM reprogramming process, the root cause of the program, and the solutions to the issue. You are using an out of date browser. If you click them and make a purchase, we may earn a small commission. 2015 - 2020 F150 - 21N08? Program #21N08 PCM REPROGRAM DUE TO ENGINE SHUDDER; . The previous 21B10 customer satisfaction update was designed to send more oil to the cam phasers. '22 camera issue made worse by dealer and others issues not resolved. 21n08 - PCM reprogram due to engine shudder. Is this related to the cam phaser reflash FSA? For a better experience, please enable JavaScript in your browser before proceeding. You may then need the cam phasers replaced through the 21N03 customer satisfaction plan. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network. Less rattle on startup, and no adverse effects so far. Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. For a better experience, please enable JavaScript in your browser before proceeding. The situation is really bad with Ford now. Yesterday drove the truck from NY to Maine and all through the traffic out of NY truck had a strong vibration right around 1000 rpm and would settle at a full stop. This PCM update is program 21B10. I would like to hear from some of the owners which have had the 21N08 update done and see if their issues have gone away. Both will appear on the carfax of every affected VIN, which includes 2017 to early 2020 models. The reprogram will update the engine control module (ECM) with new calibration files that are optimized for use with low deposit engines. If youre experiencing engine shudder in your Ford vehicle, please bring it to your nearest dealership or service center so we can take a look and get it fixed up for you as soon as possible. were completed so that you will be covered by the Ford warranty of 70k miles regarding cam phasers/VCT systems. Ford TSB 21N08 Make: Ford Number: 21N08 Date: 10/29/2021 Title: PCM Reprogram Due to Engine Shudder Summary: In a very low percentage of the affected vehicles, an engine shudder may develop after receiving the PCM update provided in program 21B10. If your cam phasers are not noisy, don't fix stuff that isn't broken, obviously the earlier PCM upgrade was done that extends your warranty to 70000 miles and prorates beyond that, you don't have the shudder so not needed the 108 flash. Hello mjpatera! This recall affects a variety of models from the 2012-2013 model years, including the Escape, Fusion, Taurus, Flex, Explorer, and F-150. Terms of Service - I have a 2018, just got the same notice.

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