Rough idle and bad driving performance

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Conrad

Rough idle and bad driving performance

Unread post by Conrad » Sat Oct 16, 2021 5:00 pm

For 2-3 weeks, my ‘19 f150 5.0L has decreased mpg, rough idle with low RPMs (sometimes under 500), decreased acceleration, and rough shifts around 5th gear (10speed trans). Any way these are related? History of Cam phasers replaced one side, VCT solenoids both sides of the engine. Engine sounds like a diesel at idle almost. Not the “characteristic noise of the 5.0 engine” either, worse, water in the car visibly shakes in the cup holder.

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carriedi
Posts: 2459
Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: Rough idle and bad driving performance

Unread post by carriedi » Sun Oct 17, 2021 3:21 am

is the check engine light on?

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