View Single Post
  #13  
Old 10-25-2011, 07:31 PM
Cruger's Avatar
Cruger Cruger is offline
Registered User
 
Join Date: Mar 2011
Location: Sherwood Park, Alberta, Canada
Posts: 31
Quote:
Originally Posted by andrewjtx View Post
I thought a bad t-stat would cause coolant to constantly pass through the radiator. At idle, no air moving over the radiator, so he would get heat. At road speed, it would be over-cooling the engine... right?
Quote:
Originally Posted by kerry View Post
Depends on how it failed, but the symptoms as described are classic symptoms of a torn monovalve diaphragm.
My thermostat is almost new. I bought the car last April with a bad thermostat that was stuck open. Replaced it in about March.

Thanks for the info guys. I'll order up that valve here later this week along with a new water pump since mine is leaking a tiny bit from the shaft seal.
__________________
'85 Mercedes 300SD W126
'99.5 Jetta TDI
Reply With Quote