sorry i find it hard to believe these engines had failed from overheating, the software shuts down power at 115 degrees C, and i mean shuts down. the vehicle is impossible to drive at anymore than crawling speed, it does this by cutting fuel delivery thereby cooling the combustion temps and also dropping boost right off. this is a great failsafe and even though dangerous in my opinion if you are travelling towing on a major highway with big trucks following you etc at least the engine is protected
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if the cap has failed then the vehicle will overheat and reach this threshold quickly, again failsafe mode will cut in.
the only thing i can add is that these engines run high egt's due to their highly tuned state, which i would find more believable as a cause of failure. high loads and speeds in high ambient temps will provide little relief from climbing exhaust temps.
jc
Master
SupporterOriginally Posted by justinc
sorry i find it hard to believe these engines had failed from overheating, the software shuts down power at 115 degrees C, and i mean shuts down. the vehicle is impossible to drive at anymore than crawling speed, it does this by cutting fuel delivery thereby cooling the combustion temps and also dropping boost right off. this is a great failsafe and even though dangerous in my opinion if you are travelling towing on a major highway with big trucks following you etc at least the engine is protected
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