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  1. High pitch whining and thump on cold start

    F150 Ecoboost Chat
    Hello, I am new to the EB engine, I have always been a v8 guy but decided to give the 3.5EB a shot. My dad has a 2011 and loves his. My 2014 only has about 30K miles (I purchase dit about a month ago). I noticed on cold starts that there is a high pitch whining noise followed by a thump. As...
  2. 2011 3.5 eb, no boost/constant whine, started with weird noises

    F150 Ecoboost Problems
    Hi Guys, I'm new to the forum. So here's my issue, I am wondering if anyone has had the same issue and knows of a fix: It started about a week and a half ago during some very cold weather (-10 F) and the turbos were blowing off 5-6 times repeatedly under acceleration. I thought it might just be...