Mitsubishi 6G73

The 2.5 of the family, SOHC 24-valve and 161 hp, in the Diamante and Galant and in Chrysler's Cirrus and Sebring and Dodge's Stratus and Avenger. An interference engine, like the 6G74 and unlike the SOHC 6G72 — which is the family's one genuinely confusing property and the reason all three pages say so.

All of them run a toothed timing belt, replaced every 60,000 to 100,000 miles, and a belt that has been left is the family's defining risk. Beyond that the recurring faults are shared: hydraulic lash adjusters that tick and fail on pre-1995 engines, valve cover gaskets that seep, carbon sticking the intake runners, and vacuum leaks at the intake manifold.