Tuning a 03 Cummins ISL
I have a 04 Country Coach Intrigue with a Cummins ISL 8.9 Liter. I bought it in Virginia and drove it back to Colorado. I have been using it in the mountains this summer and have noticed it blows out ...
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Why don't you take it to your local diesel guy and talk to him. Not sure if yours has a auto altitude adjustment or not.
