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Paccar PX9 Compression Test Procedure
Posted to HD/Fleet Forum on 7/15/2026 7 Replies

Hello Everyone, Welcome to the eye of the hot summer! I have a 2018 KW T370 with a Paccar PX9 engine. (ESN 74216398) We have a dead hole in cylinder #1. Loaded with hard faults: 1654- engine misfiere cyl 1, 0691- turbo charger compression intake temp, 0742- tu... Login to read more.

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