Lemmy Car Experts, I have a car that is randomly leaking coolant and need advice (Resolved) (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by YoBuckStopsHere@lemmy.world to c/asklemmy@lemmy.ml

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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 Kolgeirr@sh.itjust.works

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[-] Kolgeirr@sh.itjust.works 39 points 1 year 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.

[-] YoBuckStopsHere@lemmy.world 30 points 1 year ago

Thanks! I tried this, and it leaked. The issue is at the heater core. I'll putting together a bypass to the line that is leaking now.

[-] Kolgeirr@sh.itjust.works 18 points 1 year ago* (last edited 1 year ago)

Awesome! I claim victory for this thread. One more notch carved into the 1/2" ratchet.

People be jumping straight to head gaskets way too much when coolant issues arise.

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this post was submitted on 10 Aug 2023

63 points (97.0% liked)

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