How do you bleed the cooling system with air bleeds?
STEP 2 Bleed the system Check for air bleeds on the engine. If there’s an air bleed, open it. Pour in the recommended amount of antifreeze slowly until you see coolant oozing out of the open air bleeds. Then close the bleeds and top up the system with the remaining antifreeze and distilled water.
Can an airlock cause overheating?
Airlock – Following a coolant leak, more air will build up inside of the cooling system than coolant fluid. This gel will create a blockage from allowing the coolant to circulate in and out of the engine. As a result, the engine will begin to overheat because it is not getting any new fresh coolant inside of itself.
Where does the coolant go on a Volvo V40?
Excessive pressure in cooling system indicating cylinder head gasket has gone. Removed head to replace head gasket and found a small crack in cylinder 3’s bore and the liner on cylinder 2 and 3 have shifted. Need a replacement engine. Only now the car is out of warranty is has become apparent where the coolant was being lost!
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.
Why does my Volvo have a low coolant message?
I got a low coolant message but temperature was not increased. I went by the volvo dealer, where they tested the cooling system by pressurizing it. They didn’t manage to find any leaks. They topped it back to MAX and has stayed that way over the past 12 months (and 17,000 kms).
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.