Volvo AWD S80 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 8/2015 S80 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

collant overflow S80 2003

coolant overflows when stopped, it is the cooling fan or thermostat








  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

collant overflow S80 2003

Welcome to the Brickboard. I replied to your other post, but this one is better because you will get email response.

Normally, OEM thermostats fail in the open position and the engine will run cold most of the time. You can check this when the engine is at operating temps by feeling the top hose to the radiator, hot means the thermostat is open and circulation is working while cold means the thermostat is closed and your engine is being cooked.

If the radiator fan is not on, suspect a bad relay or a blown fuse. The fan should always be on if the AC is engaged and running.
--
Klausc, a Volvoholic








  REPLY TO THIS MESSAGE    PRINT   SAVE 

collant overflow








  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

collant overflow

You can use the tab function or drag the cursor down to the message area, but if you use the return key to get to the message area, it will leave a blank message area.

One other thing, if the coolant is leaking out of the top of the cap (there is a pin hole in it), then it is possible that the cap needs to be replaced. Assuming of course the rest of the system checks out OK.

--
Klausc, a Volvoholic







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.