2008 Discovery w/350 Cummins check engine!
I have a (new to me this season) 2008 Discovery with a 350hp Cummins and on a longer grade the check engine! comes on and then it will go back off on its own a short time later, after it’s not pulling...
Forum Discussion
Take it to a Certified Cummins dealer (Class 6-8 truck dealer and have them plug into the diagnbostic port. One thing about a diesel is that when you get a check engine light it needs to be addressed pronto. Diesel repairs are EXPENSIVE.
