I had a Mustang GT- 2018 model year that had tick and piston rattle or slap. The tick was annoying although it did not bother me. Ford even produced a bulletin stating the tick was "normal". The tick turned in a rattling noise when the engine was cold. Brought it to the dealer and the service tech acknowledged it was not normal and was not the tick. The service manager however stated it was just the ticking noise and that it was normal per the Ford bulletin. The 5.0 engines have some type of plasma coating in the cylinders and I read somewhere there were issues with fit up between the pistons and cylinders. Long story short I got rid of the car after only 6K miles.
Hope the 2.3 and 2.7 don't have this issue.
Hope the 2.3 and 2.7 don't have this issue.
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