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Calling OSO mechanics - clicking noise...

Old 08-10-2005, 11:24 PM
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Location: Midlothian, VA
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Default Calling OSO mechanics - clicking noise...

When at idle, I hear this clicking noise that is very consistent. A good analogy would be the sound at the beginning of the show 60 minutes. When I throttle, it seems to go away.

Does anyone know what this may be? I was thinking maybe low on oil and I am just hearing the valves? When I start, I always see a sooty/oily ash behind my exhaust - acts like it lets out a small bit of oil - is this a valve guide seal problem that is worsening?

I will check the oil tomorrow morning...put in the water and was too dark to read the dipstick.
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Old 08-11-2005, 01:40 AM
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Location: Phoenix, AZ, USA
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Default Re: Calling OSO mechanics - clicking noise...

If you have the 28 Heat, it might be the internal (metal?) flappers that they use in the exhaust tailpipe. I had a Heat several years ago and heard the "clicking" noise at idle only.
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Old 08-11-2005, 01:53 AM
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Default Re: Calling OSO mechanics - clicking noise...

It's probably just the lifters. Does it only do it when it is cold? Most GM trucks have a consistent tick (from the lifters) when they are cold.
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