heater hose replacement

2004 CHEVROLET CAVALIER
54,234 MILES
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SKYTROOPER82
  • MEMBER
  • 4 POSTS
Replaced the water pump and thermostat. Filled up with new coolant started engine no warm air inside interior. I marked the heater hose when disassembling but the mark rub off. Just want to make sure I put the hoses on properly.
Dec 28, 2011 at 6:38 PM
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DANNY L
  • CERTIFIED EXPERT
  • 5,648 POSTS
Hello, I'm Danny.

Here is the information you requested. You will need to remove some coolant from the system if you need to re-arrange the hose routing in case of improper installation prior. Here is a tutorial showing how to drain and flush.

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

I've attached picture steps below showing the correct heater house routing as well as how to remove and replace. I've labeled the routing (inlet-outlet) in red. Hope this helps and thanks for using 2CarPros.
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Sep 8, 2021 at 12:47 AM