Quote:
Originally Posted by alumarine
I agree it sounds like the cooling system more than the A/C.
Your heater core is under the dash as well.
My 2cnd gens used to make that gurgling noise often.
Don't recall if my 3rd gen does. I've probably tuned that noise out.
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It’s the sign of a bad rad cap that isn’t venting properly when cold or the rubber hose between the neck of the Rad and the expansion tank is not sealed properly and it’s sucking air instead of coolant when it cools off.
If the coolant is fillet to the top of the Rad and the expansion tank it topped off, a properly vented cooling system should have all the air purged out by the end of three drive cycles.
Some spirited driving with the heat on max temp to fully open the heat control valve on the firewall should push all that air (trapped in the heater core from his Rad flush) into the Rad where it can be pushed into the expansion tank on the next warm up cycle.
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