i have a 1995 madza 929 and i keep here this ticking noise what can that be

1995 MAZDA 929
6 CYL
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CEJ2004
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when i start it up it sounds like its like a racing car and then it starts ticking
Apr 13, 2012 at 6:47 PM
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RIVERMIKERAT
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Vacuum leak. Leaking exhaust manifold. Valves needing adjustment or hydraulic lifters losing pressure.
Apr 13, 2012 at 7:06 PM