Water Pump and back flush questions

[JFP in PA]

Air pockets.

[gdotcvg]

Originally Posted by JFP in PA

Air pockets.

JFP. I appreciate you assistance. How would I clear air pockets? Drive cycles with bleed open or closed? Note: coolant level is not dropping in tank with bleed closed.

[pilot4fn]

Originally Posted by gdotcvg

JFP. I appreciate you assistance. How would I clear air pockets? Drive cycles with bleed open or closed? Note: coolant level is not dropping in tank with bleed closed.

Did you keep the heater on full hot setting (the fan do not need to be running full speed) to allow the coolant to fill the heater core as well?
Sounds like airpockes someplace as JFP mentioned.

[gdotcvg]

Originally Posted by pilot4fn

Did you keep the heater on full hot setting (the fan do not need to be running full speed) to allow the coolant to fill the heater core as well?
Sounds like airpockes someplace as JFP mentioned.

Yes, heat was on.

[JFP in PA]

Originally Posted by gdotcvg

JFP. I appreciate you assistance. How would I clear air pockets? Drive cycles with bleed open or closed? Note: coolant level is not dropping in tank with bleed closed.

While an atmospheric bleed can often clear the system, the correct way to get them out is to fill the system while it is under vacuum. The vacuum tool can also get air out of already manually filled systems.

[Gilles]

Originally Posted by JFP in PA

While an atmospheric bleed can often clear the system, the correct way to get them out is to fill the system while it is under vacuum. The vacuum tool can also get air out of already manually filled systems.

JFP, if you have a small air pocket can you remove it with the Airlift without having to evacuate the entire system?
Or you have to remove the entire coolant and start all over again? Thanks in advance!
.

[JFP in PA]

Originally Posted by Gilles

JFP, if you have a small air pocket can you remove it with the Airlift without having to evacuate the entire system?
Or you have to remove the entire coolant and start all over again? Thanks in advance!
.

The Airlift system does not come into contact with the coolant in the surge tank while evacuating the system; as such, you can apply vacuum slowly and allow the air pockets to bleed out of the system. Takes more time than simply filling it under vacuum, but most correction methods take longer than doing it right in the first place.