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Heater core hose diagram needed?

Tiny
CORY2427
  • MEMBER
  • 2012 CHEVROLET SONIC
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
I replaced thermostat housing and can’t remember which hose on heater core goes where on housing.
Sunday, August 18th, 2024 AT 11:50 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
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.
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Sunday, August 18th, 2024 AT 8:59 PM
Tiny
CORY2427
  • MEMBER
  • 281 POSTS
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.
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Monday, August 19th, 2024 AT 5:36 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 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
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Monday, August 19th, 2024 AT 7:14 PM

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