il66pony
Active Member
- Joined
- October 8, 2015
- Messages
- 63
- Reaction score
- 9
- City, State
- Hawthorn Woods, Illinois
- Year, Model & Trim Level
- 2007 Mountaineer
2007 Mountaineer 4.6 V8, rear heating and AC, 103k miles. A couple of weeks ago, I noticed coolant dripping from a bolt on the bottom of the passenger side frame rail. It was dripping (not much) about 18 inches back of the rear edge of the front fender. I looked but could find no obvious leak so I came here and posted about it. Seems like the culprit would be the "Y" hose assembly that runs to the right side of the exhaust manifold and down for the rear heater. So I got the part yesterday, took off the air intake assembly, wheel, and a rubber flap in the wheel well. Everything was dry as a bone with no sign of any kind of leak. And of course antifreeze does not evaporate. So, traced the heat and AC lines all the way back to where they enter the cabin in the rear. Everything dry as a bone. Side of engine, rear of engine, bell housing, tranny not a single trace of coolant. BTW, when I first noticed this the overflow tank was empty when cold. I did put some in to get a little in the tank.
So, while driving it in the last couple of weeks, coming home and parking it, it has leaked several times but not every time. It has been pretty hot here so only the AC has been on. Have not driven it at night during all of this so no chance the heater kicked on. Today is cooler so I may take it out tonight and run bot front and rear heat and see what happens.
Has anyone ever had an elusive leak like this? Any ideas for me?
Again, thanks in advance.
Dave
So, while driving it in the last couple of weeks, coming home and parking it, it has leaked several times but not every time. It has been pretty hot here so only the AC has been on. Have not driven it at night during all of this so no chance the heater kicked on. Today is cooler so I may take it out tonight and run bot front and rear heat and see what happens.
Has anyone ever had an elusive leak like this? Any ideas for me?
Again, thanks in advance.
Dave