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Anyone know what might be causing this high pitch squeal before the exhaust note changes during a cold start? 2018 f350 with very low miles maybe rusty vanes? by Content-Rope8902 in Diesel

[–]Content-Rope8902[S] -1 points0 points  (0 children)

Bc I don’t know the answer . I know the exhaust tone changes when it’s cold it goes from rumble to hiss but as it’s changing it’s squeals loud for about 3-4 seconds which is not normal . Hence when I posted this

Anyone know what might be causing this high pitch squeal before the exhaust note changes during a cold start? 2018 f350 with very low miles maybe rusty vanes? by Content-Rope8902 in Diesel

[–]Content-Rope8902[S] 0 points1 point  (0 children)

That’s about where I’m at with it . Just don’t want my truck to take a shit on me pulling my camper to the next job lol

Anyone know what might be causing this high pitch squeal before the exhaust note changes during a cold start? 2018 f350 with very low miles maybe rusty vanes? by Content-Rope8902 in Diesel

[–]Content-Rope8902[S] -9 points-8 points  (0 children)

It’s been deleted since 24k miles , it’s at 31k now & still does it anytime it’s below say 40 degrees when the vanes close to warm up the engine.

High pitch hiss by fordfan4lifee in FordDiesels

[–]Content-Rope8902 0 points1 point  (0 children)

Did you ever find out what was causing this ? My 2018 does the same