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  1. Powerboost CEL P237C/Exhaust Heat Exchanger Leak Megathread

    Fortunately, I was able to keep driving my truck. They provided me with coolant to fill as needed over the last month.
  2. Powerboost CEL P237C/Exhaust Heat Exchanger Leak Megathread

    The Heat Exchanger for my truck arrived yesterday and they installed it this morning. Part ML3Z 5A212 W Now I pray that this replacement part does the job!
  3. Powerboost CEL P237C/Exhaust Heat Exchanger Leak Megathread

    Seeing MrFarly's post is disturbing! I just got back from the dealer today. Thanks to this forum it was diagnosed quickly along with the pictures I provided. They put the part on order and said it's back ordered until 7/8/22. They can't get me into a loaner yet, but promised me one this week...
  4. Powerboost CEL P237C/Exhaust Heat Exchanger Leak Megathread

    Thank you for the info! I'm glad I've always kept my window stickers of every vehicle purchase. However, my date isn't displayed on the on the top of the sticker like the one shown by Nasto. According to the lower right portion of my sticker is states: Special Order MM 171 N RB 2X 220 002424...
  5. Powerboost CEL P237C/Exhaust Heat Exchanger Leak Megathread

    I ordered my truck with the dealer on 11/21/21 and drove it off the lot on 2/12/22. I'm not quite sure where exactly to find the blend build date so hopefully the dates provide some relevance. My truck has a 5.5' bed. Thank you!
  6. Powerboost CEL P237C/Exhaust Heat Exchanger Leak Megathread

    Thank you very much for the information and advice I will definitely put it to use. I talked to the service manager of the dealership and he's getting me in on 6/6/22. I'll definitely keep you all updated on the rigamaroll they try to put me through!
  7. Powerboost CEL P237C/Exhaust Heat Exchanger Leak Megathread

    I'm so glad I found this thread. I thought I was going crazy! About a month ago while driving my 2022 Lariat Powerboost, I noticed the engine fan was really loud and digital temperatures were were being displayed on the temp gauge. I looked under the hood and discovered the large reservoir was...




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