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...
Forum Discussion
Ivylog wrote:
I have a 03 ISL and 23-24 is all it 's ever done. Plenty of power and I'm on the heavy side.
I believe you have more boost than you think>??
ISL 425HP has 35-37 lbs boost max
ISC 350HP Has 30-31 lbs Boost max
these are documented facts
