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  1. F150 Ecoboost Problems
    It's a 2011 f150 3.5 l Im not sure exactly what information you might need here's two videos these basically show when I've heard it, start up and revving it. From top it sound like it's coming from the top passenger side but from bottom it sounds like it's coming from behind the bell housing...
  2. 2nd Gen F150 Ecoboost
    This doesn't always happen, but sometimes when I start it after sitting overnight a knocking noise develops after idling for 5 minutes but eventually goes away when it's driven and operating temperature has been reached. It has 29K miles and I always use 87 octane from Costco. My first reaction...
  3. 2nd Gen F150 Ecoboost
    For a while I've been researching why some 2nd gen 3.5s make a knock-like noise that resembles a diesel. Today I've come across a great video of a 2017 3.5 that sounded identical to a 2018 I filmed last year (I have the video in another thread). This guy mentions that all cam phasers were...
1-3 of 3 Results