Sweersa
Well-Known Member
- Joined
- September 1, 2014
- Messages
- 204
- Reaction score
- 7
- City, State
- Marne, MI
- Year, Model & Trim Level
- 2005 Ford Explorer XLT
My 2005 Explorer 4.0 V6 had a coolant leak coming from the lower thermostat housing. Coolant would pool up on top of the engine and drip all over the driveway and make puddles. I replaced both the upper and lower thermostat housings, thermostat (since I was already in there) and the sensor. All new parts were Motorcraft. It's still leaking but now it appears the leak is coming from the sensor on top of the lower housing and then drips all over the place, and the sensor is a little loose too in the lower housing. I remember the original sensor in the original housing fitting a lot more snug. The new sensor came with a new O-ring.
I have heard replacing the O-ring with a slightly larger or fatter one will help. Or to use teflon tape around the O-ring.
Has anyone else experienced this issue? I figured going with Ford recommended Motorcraft parts would prevent something like this from happening.
I have heard replacing the O-ring with a slightly larger or fatter one will help. Or to use teflon tape around the O-ring.
Has anyone else experienced this issue? I figured going with Ford recommended Motorcraft parts would prevent something like this from happening.