Cummins 2005 ISL low power AGAIN!
What we thought was a sticking exhaust brake on our MH is now a, They don't know. The exhaust brake checked out good and functioning properly. $515.67 later and Cummins West thinks it could be a faul...
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Trust me when I say, that the ISL is low on horsepower when the problem occurs, Cummins says this particular engine boost should be between 35 - 37 pounds of boost. Cummins also has confirmed there is a problem with this engine, however they have said there is nothing on this engine that will limit the boost because the engine is not up to temperature. The very first time I took the MH to Cummins I had done a little research and asked if it might be the EGR valve, (a known problem), their service tech told me he didn't think it is the EGR valve. The last time I had the MH there, their mechanic stated in his report, the next step would be to check the EGR valve or the turbo. The turbo has been checked twice by them already. I have given up on Cummins Pacific and they have given up on me, and my MH. I have an appointment with a Diesel Tech company in Fresno, just needed to wait until the end of race season to get the MH to them.
