Valve or intake noises

04_mazda3

Member
I have a 04 Mazda 3 sport w/ 2.0 & 5 spd. I get valve train noises but not at all times. I havent documented when it happens, it was not doing it today, but when it happens it is at low rpm and if I let off the gas it goes away. It kinda sounds like the valves need adjusting, but the manual says not until 75,000km(46,600miles)I only have 65,000km(40,000miles) on my car. I called a dealer and he mentioned something about the intake manifold. Does any one recognise this symptom and if so how serious is it, and would it be a warrenty issue? Any answers would be greatly appreciated.
 
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