Quote:
Originally Posted by Kate1025
Assuming we have it as going down the Grapevine 6% grade for 5 miles (CA) had issues with engine torking way down as we descended. I understand it is supposed to help with braking but it may be a bigger issue when traveling at 45mph - engine went from 2800 rpm to 4000 rpm when it kicked in. Releasing the tow/haul switch at this point did NOTHING!
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So what't the problem with the engine running at 4000 RPM in a lower gear going downhill? The V10 is designed to do that and it handles the higher RPMs quite well. If you don't like it turn off tow/haul and cruise control before the ascent and take your life in your hands and hope the brakes don't overheat while you are riding them going down.
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