Need a diagram of heater core for DIY maintenance?

Funny enough, the first time I tried to fix mine, I ended up with coolant everywhere! Anyone else have a DIY mishap?

Haha, yeah, I think we’ve all been there. DIY projects usually go sideways at some point!

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For testing your heater core, you can use the garden hose method. Just disconnect the inlet and outlet hoses and see if water flows through freely.

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That’s a good technique! If the flow is restricted, you’ve likely found your problem.

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If you figure out the issue is a bad heater core, does anyone know how expensive this part typically is?

Prices can vary, but expect anywhere from $100 to $500 depending on your vehicle make and model. Labor can add up too if you go to a shop.

Definitely! That’s why DIY tutorials are so valuable.