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submitted 10 months ago* (last edited 10 months ago) by [email protected] to c/[email protected]

2012 Ford Focus, 155K miles, it is leaking a decent amount of coolant when my partner drives it to work but doesn't even leak a drop if I drive it to work. The mileage is the same but I don't sit in traffic. Could the extra heat from sitting in traffic be opening up a pinhole sized leak in the coolant line?

Edit: Thanks to a tip from the comments when the heat is turned on it leaks. I should be able to bypass that line pretty easy.

Thanks [email protected]

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[-] [email protected] 2 points 10 months ago

Any chance your partner uses the heater and you don't? Many cars have a heater core bypass valve that only allows coolant into the heater core when the heat is on in the cabin.

this post was submitted on 10 Aug 2023
4 points (83.3% liked)

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