Heater core hose diagram needed?

2012 CHEVROLET SONIC
50,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
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CORY2427
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I replaced thermostat housing and can’t remember which hose on heater core goes where on housing.
Aug 18, 2024 at 11:50 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
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Hi,

They don't make a schematic, so I had to. LOL There are two hoses. One is a supply (inlet) and the other is a return (outlet).

If you look below, the first two pics are for the outlet. Pics 3 and 4 show the inlet.

Let me know if this helps.

Joe

See pics below.
Images (Click to enlarge)
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Aug 18, 2024 at 8:59 PM
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CORY2427
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So, the bottom port of the heater core goes to the top of thermostat port and the top of heater core port goes to bottom of the thermostat port.
Aug 19, 2024 at 5:36 AM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

Based on what I'm seeing in the manual, you are correct.

Let me know how things work out for you or if you have other questions.

Take care,

Joe
Aug 19, 2024 at 7:14 PM