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Old 09-26-2020, 12:45 PM   #1
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Strange ticking sound??

W22 with 39k mikes. Runs awesome and everything works but I get a very erratic slight ticking sound up front. Comes and goes and no rhythm to the ticking. Could it be the “hood” which could be snug down more? A vacuum leak? Weird and baffled!
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Old 09-26-2020, 06:56 PM   #2
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Well, if it was a grandfather clock and was only ticking...
You could look at it very sternly and say ' We have ways to make you tock'

Just funning you.
What model of coach?
Ours comes up with some strange sounds too.

Stan
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Old 09-26-2020, 07:10 PM   #3
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[QUOTE=Switchflicke;5456911]Well, if it was a grandfather clock and was only ticking...
You could look at it very sternly and say ' We have ways to make you tock'

Just funning you.
What model of coach?
Ours comes up with some strange sounds too.

Stan[/QUOTE
CT Coachworks Siena...love the coach but strange noises while driving drive me mad...thinking the “hood” might be too loose.
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Old 09-26-2020, 07:12 PM   #4
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Is this a gas or diesel engine? Does the ticking change with engine rpm? Does the ticking go away when the hood is up. There's a whole bunch of things this could be but we would need more information.
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Old 09-26-2020, 08:15 PM   #5
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I'm betting it's an exhaust manifold leak. As asked, does the ticking speed vary with engine rpm? Does the ticking quiet down when the engine gets up to temperature?
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Old 09-26-2020, 10:19 PM   #6
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I agree with Mudfrog.

I've had three bouts with exhaust manifolds on my 8.1 and they will make some very strange weird noises.
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Old 09-27-2020, 08:20 AM   #7
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I suggest using your phone to record a short video with the engine shroud off and move from front to back and left/right. Do this at idle and with the rpm's higher like 2000. A trained ear will give you a pretty good guess. If it only occurs while driving under a load, have someone record for you when you get the ticking sound to appear.

Then upload the video and give us a link so we can watch it.

Good luck,
Bill
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Old 09-27-2020, 07:17 PM   #8
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Had a ticking on my 05 Dolphin on a W22 , turned out to be a plug wire arcing to the manifold .
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Old 09-27-2020, 08:15 PM   #9
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I found the source of the ticking! Really embarrassed as to the source. Seems I had this issue a couple of years ago and just remembered.
I have a custom made aluminum adjustable TV bracket up front for my 43” tv. I have to adjust the tilt which seems to eliminate the sporadic ticking.
I guess that’s better than some alternatives!
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Old 09-27-2020, 09:36 PM   #10
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Thanks for the update, glad you found the source!
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