Message: I HAVE A 93 V6 3.9, AND WHEN YOU FIRST START IT IT SOUNDS FIEN AND AFTER IT WARMS UP IT SOUNDS LIKE A DIESEL, ANY COMMENTS, I BOUGHT IT USED WITH 50,OOO MILES, AND HAS DONE IT EVER SINCE I'VE HAD IT, SOMEBODY PLEASE REPLY.
Message: Where is the noise coming from? Lower end? Valve train? Injectors? If it's the injectors clicking thats mormal. If it's an internal engine noise i would hook an oil pressure gauge up to it and see what it says with the engine warm at idle.
-Jon
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Subject: DOES'NT KNOCK WHEN COLD