Not complaining, venting
2008 Discovery 40X 350hp Cummins Check engine light come on when on a long grade/hill and go back off after topping the grade. Could not find anything wrong, did not affect the way it ran but leavin...
Forum Discussion
Agree it’s better to repair it before you leave on a trip, and that a ten year old rig probably does have worn out parts in need of replacement. Still, painful, sorry you had these issues.
To answer a question someone else asked, yes, turbos are getting less reliable. Happens with everything. Between the manufacturing drive to continually make “cost improvements,” ie, cut costs and the continual adding on of features and varied bells and whistles, things devolve. Turbos used to be very simple devices, just a pair of spinning wheels and a couple bearings, very tight specs, but simple. Not much to go bad. Now they’re having movable vanes to control output instead of a separate wastegate, and while that has improved control, it has also made the turbo have around 20 times the number of moving parts.
To answer a question someone else asked, yes, turbos are getting less reliable. Happens with everything. Between the manufacturing drive to continually make “cost improvements,” ie, cut costs and the continual adding on of features and varied bells and whistles, things devolve. Turbos used to be very simple devices, just a pair of spinning wheels and a couple bearings, very tight specs, but simple. Not much to go bad. Now they’re having movable vanes to control output instead of a separate wastegate, and while that has improved control, it has also made the turbo have around 20 times the number of moving parts.
