2003 Chevy Avalanche Replacing Heater Core

2003 CHEVROLET AVALANCHE
150,000 MILES • V8 • 2WD • AUTOMATIC
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RICHSMITH363
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  • 1 POST
Are there instructions on changing a heater core myself? I know it will be difficult but want to give it a try.
Dec 7, 2009 at 9:41 AM
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SCOTTY DEE
  • ✓ASE Certified Mechanic
  • 592 POSTS
  • ASE Certified Mechanic
You will need some service information to help you along. You can buy a short term subscription to Mitchell service information for less than 20 bucks for a whole month.

https://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals
Jan 26, 2010 at 2:21 PM
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