While working on a Truck today I noticed it whistled while running when the engine was revved up some
This is usually indictive of a leak in the intake air cooling system between the Turbo and the engine intake. After a brief search I narrowed it down to a small hole in the pipe that leads from the turbo to the cooler. I removed it then cleaned up the rusted area and oxy fuel welded the rusted area
Good as new for a while longer
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