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940T Screech and Rattle 900 1994

posted by  janglim on  Tue Jul 3 20:59 CST 2007
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last visit: Tue Sep 9 11:55 CST 2014
[RELATED]

My 94 940T developed a couple of bad new noises yesterday. I'm digging into it tomorrow and would like to hear any thoughts on what to look for.

The noises came on suddenly with the engine warm but not hot, at about 30 mph under light boost uphill. The B230FT has 150K on it. I put in a new head gasket and a rebuilt 13C from FCP groton about 3K ago (when I bought it). No problems till now.

Once the sound started I returned home immediately - about 1 mile. I didn't notice any symptoms other than the noise, but I took it very easy.

The sound is a mix of a metallic rattle and an occasional screech. The speed of the rattle is related to rpm but not linearly - so I am guessing turbo.

The end result of this is likely to be pulling the turbo and sending it back under warranty, but is there anything I should look at in the process?

thanks-
joe






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