Harbor Freight Master Diesel Compression Test Kit Review, Didn’t Work

[@ronaldbrosius7488]

Use a wrench instead of socket, if that doesn't work try turning engine over, rocker should move to give you a little more room

[@Alanthe918mobilemechanic]

Nah it works but for the 7.3 it only works up to 1994 u need a different adaptor or buy the icon kit they sell

[@LarryReynolds591]

So a 7.3 IDI, not a 7.3 powerstroke

[@georgesuchand3692]

@@LarryReynolds591. Completely different. IDI ended mid 94, PowerStroke started mid 94. So 94 has both motors.