| IISM Engine Brake Problems |
| 07-16-2020, (Subject: IISM Engine Brake Problems ) Post: #1 | |||
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| IISM Engine Brake Problems 2006 International 9900i ISM CM875 engine brake does not work. Insight sees the clutch switch, service brake, the switch to change from low to high. It says engine brake output circuit 1 & 2 inactive which I presume would only become active when brake is activated? What am I missing besides going into valve cover? It appears everything electrically is correct. Also customer said Engine Brake has never worked since he purchased truck used. Thanks | |||
| 07-16-2020, (Subject: IISM Engine Brake Problems ) Post: #2 | |||
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| RE: IISM Engine Brake Problems Pop the valve cover and inspect the harness... Could just be old and cooked, not uncommon. User's Signature: 2008 ProStar, OEM 600hp CM-871, 18spd, 3:42, in framed in Rawze's driveway. Every day is a fresh new episode of, "The Twilight Zone"... Rod Serling lives rent free in my head. I can smell the Chesterfields. | |||
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