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Cars & Vehicles
Car Sounds
1995-2005 Chevy Cavaliers

I have a ticking noise coming from under the hood and it seems to get worse when the car is heating up this happens from the time you turn the car on until I turn it off?


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Wiki User
August 29, 2007 6:02PM

Your valves may need adjustment. As an engine ages the parts develop larger than normal spaces between them through wear, what you hear is the valve lifters tapping because they have too much gap between their surfaces. If the engine is fairly low on mileage more frequent oil changes and the use of an oil treatment can often times make the noise go away, the thicker oil forces the parts closer together thereby stopping the noise.