The verdict is still out on the final diagnosis... . but here is what happened... Driving down the road Saturday, truck rolling about 30 mph off the throttle. Felt the engine shutter pretty hard, hear something metal on metal hit, then grinding noise. Attempt to tip in on the throttle, get no response from the boost gauge. Get tons of shuttering from the truck, and lots of grinding/whining. hhmmm. . but no CEL for low boost??. Get the truck out of the highway, shift to neutral, throttle up and can only get about 2700 rpm with tons of shaking... Boost gauge makes no moves... zero!. Shift into drive and attempt to stall the engine against the brake and see if I can generate boost, engine will barely climb to 1000RPM and zero boost, tons of noise, and shaking, yet still no cel??. Spend 30 minutes trying to limp it 2 miles so the wrecker can come and get it!. Shut the engine down, and you hear grinding crashing noises for approx. 15-20 seconds after the engine stops.
I am 100% confident the turbo has failed, question is was it a simple turbo failure, or have I lost one of the notorious exhaust valves???. MY truck is the only one in our fleet that has yet to lose an engine... and has almost double the miles of the others when they failed!!. .
I am 100% confident the turbo has failed, question is was it a simple turbo failure, or have I lost one of the notorious exhaust valves???. MY truck is the only one in our fleet that has yet to lose an engine... and has almost double the miles of the others when they failed!!. .