Re: Freeze plug coolant leak
Originally Posted by pwcott86
I recently noticed that my 4.0L V6 engine was overheating and that it was a simple thermostat issue so I replaced it but found that my coolant was nearly dry. The radiator doesn't have any pinleaks (pressure tested) and all the connections were dry including the pump. I found steam pouring out from behind the A/C unit/Power steering pump bracket so I tore it apart and the front left freeze plug had corroded through allowing coolant to leak.
It's a relatively easy fix; move the power steering/ A/C unit bracket out of the way and its right there. I installed a brass plug so it would be corrosion resistant. you can see in the pics of the plug itself where the coolant had eaten at the plug. Lesson learned: have coolant changed more often!
Thanks for the informative posting!! Great detective work...
2011 Ranger XLT 2x4,4.0 SOHC, 5 Speed Auto, 3.55 Rear. Oxford White.
Simplicity is the ultimate sophistication.
Torque it down till it breaks off, then back it off 1/4 turn.