Full video of cold start to warm up can be seen here: goo.gl/KbmeEd
In this video, I show you how to get to and remove the rocker arms and push rods on a 2003 F150 4.2L V6 engine - passenger side. **It's important to note that I replaced each rocker arm, pivot and push rod one at a time; meaning I pull one assembly and installed one assembly, then pulled and installed another until all six were complete.
The rocker arm fasteners are 13mm (I forgot to include this in the video), and the repair with video recording took roughly two hours to complete.
While this repair worked for me, YMMV. Here's what I did to the motor until I finally remedied the problem. I used a mechanics stethoscope which helped me isolate the problem to the right side, passenger side of the motor. I also heard the noise closer to front and top side of the motor. Because I thought it was in the front, and because the truck has 175K miles, I assumed timing chain and timing chain tensioner. That didn't fix it. I thought lifters as my next guess and because these motors have problems with intake manifold gaskets, I decided to tackle that job and inspect the lifters while I had access. Lifters seemed fine so my next guess was the rocker arms. After replacing all of the rocker arms, pivots, and push rods on the passenger side, the noise went away.
I'll be doing a video soon of the truck in its current state, plus there's more problems to fix and I will document them as well. Be sure to subscribe if you want to see more, and let me know it this may have help you in some way. Thanks for watching.
Негізгі бет F150 v6 4.2 engine noise is gone! Repair Fixed it! Partial time lapse of tear down and inspection
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