Mr.NightHawk79 Posted March 21, 2022 Share Posted March 21, 2022 MACK E7, We are having a wooshing sound from exhaust only on #6 cylinder.. we have compression checked all 6 are 380-390#s with no leakdown, new nozzle, new rack on 4-6, ran overhead, does sound better but still puffing on #6 only, verified cam and rollers are all good, new E up and lines... Cracked one at a time only #6 doesn't change the rest it was obvious stumbling more ? I'm stumped 🤔 Quote Link to comment Share on other sites More sharing options...
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