Question about 2003 Chevrolet TrailBlazer
Usually when there is a ticking noise that changes as the rpm of the engine changes it could be that not all the components in the engine are properly lubricated. you may notice that noise occur temporarily when a car has been sitting for a while and all the oil runs to the bottom of the engine. as soon as the engine is running for a couple of seconds the noise goes away because oil is splashed on all those components. i recommend you check your oil level. i used to have a stealth with an oil leak...and i always knew when the oil was low because i would start to gradually hear the ticking noise. usually and hopefully that's it. it either that or you have bend rods that are slightly tappin on something else in there. but let's be a lil optimistic.
Posted on Sep 16, 2008
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