Welcome Visitor! Please take a few seconds and My 1998 Ranger 2.5L has 265k miles and has been getting intermittent cold start Mis-Fire on #2. The truck itself is in excellent condition, so I am considering a reman engine. However, researching a replacement, I am finding here are two different versions of this motor: 6MM and 8MM Thermostat bolts (I believe it's the thermostat housing bolts they're referring to). And
Anyway, can anyone out there clarify what this difference is?
Anyway, can anyone out there clarify what this difference is?
