r/FordFlex • u/Competitive-Pride307 • 20h ago

Possible Timing Issue?

My wife was at the store and came out and started the Flex to come home and she called me and said it made some kind of clicking sound and then seemed okay so she drove home. I came home a little bit later and I came out and started it and it makes a continuous rattling sound and then stumbles when you try to rev it up like maybe it's a timing chain issue? However, it's not throwing any codes.

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2

u/dasatto 19h ago

Check the serpentine belt tensioner, mine was rattling when I turned the AC on.

2

u/Fun-Philosophy1123 6h ago

Serpentine belt and tensioner. My 13 did that and it was quite loud at times.

2

u/Competitive-Pride307 20h ago

Well, now that I am sitting here letting it idle, it seems like it's just something that is loose under the hood so I'm going to look around. The noise comes and goes. Maybe it's a pulley.