After a month of winter traveling at high elevation in Utah, truck developed a nasty oil leak at cold starts. Leak goes away after reaching operating temp, yet continues to weep oil after shutting down and cooling off. The 7.3L Powerstroke’s oil cooler is a tubular heat exchanger between engine oil and coolant along theContinue reading “Engine oil leak at cold start | OBS 7.3L Powerstroke oil cooler replacement”
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Manolo al Sol 