Above Forum Ad

Collapse

Announcement

Collapse

Email Notifications Failing (mostly Telstra)

Hello everyone. Seems there is an issue with Telstra (possible others) blocking email from our server. If you are trying to sign up I would suggest a different email if possible. If you're trying to reset your password and it fails please use the Contact Us page:
See more
See less

T4 2.5L Diesel Cooling system question

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • T4 2.5L Diesel Cooling system question

    Hi Guys,
    I am currently experiencing some problems with my cooling system. Once the car wams up to 90 degrees c i am noticing that the thermo fan does not kick in. Also as the car warms up it gets to 1/3 temp then drops back to zero and then gradually gets back to 90 degrees (half way) and stays there.
    The temp of coolant in the coolant expansion tank is approx 87degrees c and the temp is reading 90 degrees c. However the top radiator hose (water in ) is hot approx 87 degrees and the bottom radiator hose going to the thermostat is really cold.
    My gut feeling is that I have a dodgy thermostat (stuck open??) and that is why the hose is cold. Is it possible that in this situation the engine re-circulates water internally and by-passess the radiator?? and hence bottom hose remaining cold??.

    It has me puzzelled as normally a thermostat stuck closed would cause the temp to get really hot and a thermostat stuck open would cause the engine to be operating at less than 90 degrees with the bottom hose getting hot.

    I dont know why my bottom hose is pretty cold and the thermo fan is not kicking in.

    Any advice would be great

    thanks

  • #2
    It could also be a blocked radiator.
    Performance Tunes from $850
    Wrecking RS OCTAVIA 2 Link

    Comment


    • #3
      Thanks, I will check the radiator when I change the thermostat.

      Anyone else having found the same problem?? Surely I cant be the only one who has experience this

      Comment

      Working...
      X