Ticking

harpersimon

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Not sure where this should live just yet - guessing its electrically generated so will park it here for starters
Right - I have the blower flap ticking on startup - so its not that - but when idling there is a 'ticking' from over the passenger side of the dash..somtimes.
Its not related to engine speed as I have revved and listened, but it is a rythmic ticking at say half second intervals - and I am wondering what it is.
Let the guessing begin!
 

grayb

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If your car is a W203, perhaps you have the stripped cog problem in the heater/a-c system? A flap gets too stiff and then the gears that operate the flap strip. But then is that what you refer to as the blower flap ticking?
 

television

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There are many motors and flaps on these things that cause ticking noises
 

Dosco

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Not sure where this should live just yet - guessing its electrically generated so will park it here for starters
Right - I have the blower flap ticking on startup - so its not that - but when idling there is a 'ticking' from over the passenger side of the dash..somtimes.
Its not related to engine speed as I have revved and listened, but it is a rythmic ticking at say half second intervals - and I am wondering what it is.
Let the guessing begin!

Petrol or Diesel?
 
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harpersimon

harpersimon

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If your car is a W203, perhaps you have the stripped cog problem in the heater/a-c system? A flap gets too stiff and then the gears that operate the flap strip. But then is that what you refer to as the blower flap ticking?
Nope - as I mentioned - I have that as well as this 'other' ticking
 
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harpersimon

harpersimon

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There are many motors and flaps on these things that cause ticking noises
pretty sure its not a flap motor - I know what they sound like!! :)
if it was mechanical, I'd say it was a tappet - its that sort of noise but its not Engine generated
 


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