Does coolant level go down driving?
The coolant level is probably just above the Low-Coolant sensor (therefore, no light). When you begin driving, the level will drop on the outflow side of the tank, due to the pump drawing from that side and putting fluid into the other side. This effect is limited by the thermostat being closed.
How long does it take for coolant to expand?
Typically though it should be left to cool for 1-2 hours before it’s cooled sufficiently to open the rad cap safely. If you’re actually trying to check the coolant level then you probably need to wait more like 3-5 hours (as if the coolant is still warm it will show a falsely high reading due to expansion).
How often should I change the coolant in my Volvo?
[Ywan Mason] Dex-Cool, according to a GM service bulletin only gives the extended life when it was used as the first and only coolant in the car. Residual amounts of conventional coolants left in the system even after careful draining require that the Dex-Cool be changed at the same interval as any other coolant, every two years.
Is there a problem with my Volvo cooling system?
Dexcool is known to have problems with high-lead solders, and is also sensitive to air levels in cooling systems. If you don’t keep the system topped off to the “min” mark on the reservoir, it may cause scaling and rust precipitation. The last Glysantin alternative is new in the US, although well-known in Europe,…
Where is the coolant drain on a Volvo 940turbo?
You will not be able to remove all the coolant: it always seems as though about two quarts remains in the system. On the 940Turbo:the coolant drain is at the end of the short hose leading from the oil cooler, about five inches behind the oil filter beneath the car. It points down from the tubing on which it is mounted.
What kind of radiator is used in a Volvo?
[Motor Magazine, Aug 2004] One of the coolant issues that may arise is the use of an aftermarket replacement radiator or heater core made of copper-brass with lead solder.