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I have been losing about a quart or so of coolant every 3K miles. Additionally I noticed a rushing sound in the heater core when I was running my heater this winter. These signs lead me to believe that I might have a blown HG, which I have been dreading, since my current living situation prevents me from tackling its replacement myself. How much should I expect it to cost for a shop to replace the HG?


A pressure test or chemical test on the coolant (to check for exhaust gas contamination) will tell you if you have a HG leak into the cooling system. That was the case when I had a HG leak. Observed coolant loss and a rushing/gurgling sound from the heater core when the engine was revved. Replacement cost will depend on your shop's labor rates. Check around and see what you can find.

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