montanacombineman Posted March 25, 2011 Share Posted March 25, 2011 04 vision, last week started making a funny whistle, but performance wasnt affected much. Then yesterday the turbo started going in and out, letting the egt heat way up and losing power. Cant find any leaks in the system, replaced the CAC less than 5000 mi ago, new injectors were put in at the same time. put a new relief valve in too. any ideas, thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/18466-bad-vision/ Share on other sites More sharing options...
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