“My engine blew a head gasket and now it overheats.” That’s a fairly commonly heard knee-jerk diagnosis. However, it’s wrong. When an engine overheats or if the gasket allows coolant or combustion gasses to escape, do not automatically blame the gasket. Cylinder head gaskets can be viewed similar to a fuse. If the gasket “fails,” this is a symptom that something other than the gasket itself caused the failure. 

In our 10th installment of Techs Helping Techs, we have the opportunity to allow our readers to share valuable information, for the benefit of all. We all run into diagnostic and repair instances wherein we discover a few tricks. Instead of keeping that valuable information to ourselves, sharing the tips and tricks helps everyone in the service industry to do a better job. Our thanks to those who submitted their experiences.

Shops that don’t necessarily specialize in diesel engine repair and maintenance need to do their homework to stay abreast of both previous and current diesel engine control systems in order to service their light truck/towing customers. Here we’ve included a selection of various tips and tricks to help you get your feet wet in the diesel light truck market.