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I replace one of this about 4 month ago. I went from under the dash board make sure you have alot of light you need a metric size 7 mm socket, make sure you have this before you start I kept running to the store.

Remove all the paneling the heater core is closer to the right make sure all the screws are out I missed a few started to pull and broke some plastic of the paneling. I pulled the engine forward to get to the hoses by the firewall make sure that you secure the engine with a 2 x 4 or have someone helping you.

Once everything is loose start maneuvering the core out be careful not to get coolant on your eyes, and by the way completely drain coolant before you start this job. If you don�t chances are you will get an air pocket THIS IS VERY IMPORTANT.

Good Luck and I hope you are as lucky as I was to have a friend spend the whole day helping out.

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โˆ™ 2015-07-15 21:27:16
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Q: How do you replace a heater core on a Chevy Lumina?
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