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Oh, I forgot to ask why I don't seem to hear the turbo any more when the engin is running? I would swear I could hear it before. I have added 1 gal. of the Lucas oil treatment to the motor oil. Would that quiet down the turbo? Also, the engine runs smooth and sounds great. Sam

Thanks you all for your fast replies. Got a friend to help and they turned the truck over while I stood on the front bumper. 1st attempt produced a nice cold start up with no noise. I let it run for about 5 minuts and decided to shut it down. 10 minutes later they tried again. This time I saw...

Screeching on the passenger side of the M35a2? I have started to hear a loud screeching for about 5 to 10 seconds when I start the truck. Yesterday the noise came back when I was stopped at a stop light and lasted about a minute. I turned around and headed home and it would come back...