2015 GMC Duramax Runaway

wintersun wrote:

rhagfo wrote:
good reason to carry a CO2 or Halon Fire extinguisher in the cab a couple blast in the air intake will remove the oxygen and the engine will die. I would prefer halon, as less thermal shock. Some how that engine started sucking oil from the crankcase.

What works the best is a 5 inch Crescent wrench and taking off the positive lead from the battery. I have saved one of my trucks and two other people's cars from burning up as a result of electrical shorts by doing this. With a diesel it is a good idea to know which is the primary battery.

Well primary or secondary, if it has two batteries, both are tied to the primary's positive terminal, you need to remove both grounds, and it would not stop a runaway engine, starter YES. Just ask me how Iknow that!