Fixed (I hope) a stubborn CEL problem. CEL had been coming on despite multiple trips to the mechanic. Took it to two different ford dealers and they were no help. One of them told me the timing chain had skipped.
Since my registration was expiring this month, I had to clear the CEL issue so it would pass the safety inspection. I noticed some fluid consistently on the top of the engine block, so I decided to change the intake manifold gasket. I downloaded some Youtube videos (there's a great one on changing the manifold on an f-150 that I almost memorized) took my time (about a day and a half) and pulled the manifold. Lucky for me, the gasket was shot, but the manifold did not need to be replaced.
Put everything back together and started it up and the CEL was gone! Held my breath for the first 20 miles then took it straight to the inspection place for a new sticker. Driven about 70 miles so far and still no CEL.
Since my registration was expiring this month, I had to clear the CEL issue so it would pass the safety inspection. I noticed some fluid consistently on the top of the engine block, so I decided to change the intake manifold gasket. I downloaded some Youtube videos (there's a great one on changing the manifold on an f-150 that I almost memorized) took my time (about a day and a half) and pulled the manifold. Lucky for me, the gasket was shot, but the manifold did not need to be replaced.
Put everything back together and started it up and the CEL was gone! Held my breath for the first 20 miles then took it straight to the inspection place for a new sticker. Driven about 70 miles so far and still no CEL.