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International Automotive Technicians Network
Re: Loss of Compression
Posted to HD/Fleet Forum on 10/12/2020

This morning I blocked the intake and reran the RCT test. Compression went right in the tank. Depending on how much I blocked I got down as low as 1. I am advising customer to replace ITV valve. Very intermittent. Only did it once on me. Always something new. ... Login to read more.