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Old 01-22-2016, 08:21 AM
toomany MBZ's Avatar
toomany MBZ toomany MBZ is offline
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Join Date: Nov 2006
Location: central Va
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Yes, mono valve, the red arrows point to it, the blue arrows point to the housing.

Seems there is an issue regarding part #293 or #125. Or perhaps the housing itself has developed a crack.

If that doesn't open, you won't get heat.

Engine overheating is probably a different issue, until the mechanic talks, you don't know what he replaced, receipt?

Good luck.
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What is this leaking coolant?  Monovalve?-screen-shot-2016-01-22-8.20.56-am.jpg  
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