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Old 02-24-2016, 10:33 AM   #11
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And then there are 7.3's like mine that simply aren't that loud... yes it's a bit noisy when it's cold but when I'm on the highway and it's up to temp I can barely hear the engine. I hear wind noise from the mirrors and roofline more than I hear the engine. Not sure if mine is an odd-ball or what, but it just purrs along on the highway.
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Old 02-24-2016, 11:01 AM   #12
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I test drove a 7.3 extended passenger van and it wasn't loud to me. I was actually surprised at how quiet it was inside. The van was completely stock, so I'm not sure if that had anything to do with it.
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Old 02-24-2016, 11:08 AM   #13
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Mine has a drone between 1700 and 2100 rpm but this is because of the 4" exhaust
At all other rpm it isnīt loud i would say. On highway speed i hear the GF Goodrich MTīs but not the engine.
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Old 02-24-2016, 11:22 AM   #14
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Since it is the injectors that make most of the noise, lower mile engines are usually not as bad.
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Old 02-24-2016, 05:26 PM   #15
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My 6.0 was a little louder than my current 5.4 gas engine. But, when the doghouse gasket wasn't seated properly (dealer, duh) it was quite loud. And it was sometimes difficult to seat.

It is also possible the gasket may old, bad or torn making a lot of noise. Just a small opening will pass an amazing amount of noise.

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Old 02-24-2016, 07:05 PM   #16
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My 7.3L can wake the dead if it's below freezing for the 1st 10 mins. Sounds like a jet engine ready for takeoff - other than that it sounds like, well, a diesel... I have noticed that when I use a diesel additive it is noticeably quieter however. Mostly run the Archoil additive, but like today when I don't have any, I use the silver bottle of Diesel Kleen.
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Old 02-24-2016, 07:44 PM   #17
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I also use Archoil (and Diesel Kleen if I'm out of Archoil.)
But before running the archoil, I was experimenting with different fuel additives and I noticed that 2 stroke oil added into the fuel actually made a noticeable difference in noise levels. It's cheap and worked well enough to help quiet things down and smooth it out.
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Old 02-24-2016, 10:00 PM   #18
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Well, I talked to SMB today, and the salesguy said yes, the diesel is pretty loud. The V10 is better, but still, you are sitting next to the engine. The Sprinter is much quieter. I would rather have the off-pavement abilities of the Ford, but not at the price of early deafness.
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Old 02-24-2016, 10:26 PM   #19
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Quote:
Originally Posted by diver110 View Post
Well, I talked to SMB today, and the salesguy said yes, the diesel is pretty loud. The V10 is better, but still, you are sitting next to the engine. The Sprinter is much quieter. I would rather have the off-pavement abilities of the Ford, but not at the price of early deafness.
Don't worry, the diesels aren't loud enough to cause early deafness. And the V10 is quiet as a mouse, definitely not noticeably louder than a sprinter.
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Old 02-24-2016, 11:13 PM   #20
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I test drove a 6.0 diesel at Sportsmobile West before buying my gas v10 back in 2004. Decided it was too loud, especially when tooling around at low speeds with the windows open. Nice engine to drive though.

Not that the inside of my van is library quiet -- I measure about 78 dB on the highway -- but this is mostly road surface/tire noise (when in top gear). When alone I often drive wearing earplugs.

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