1A Auto Video Library
Our how-to videos have helped repair over 100 million vehicles.
Enter Vehicle Year Make Model

Specify your vehicle's year, make and model to guarantee fit.

installation video

Are You Freezing on the Freeway Simple Ways to Diagnose Heater Core Problems in Your Car or Truck

Created on: 2022-12-21

Sue explains how a clogged heater core might be holding your heat back, even if it's just one side!

Tools needed

  • Flat Blade Screwdriver

    Phillips Head Screwdriver

    Infrared Thermometer

    Ratchet

    Complete Metric Socket Set


recommended video

How to Back Flush Your Heater Core by Yourself

Check out this video, where the experts at 1A Auto show you how to flush a clogged heater core. This can help prevent engine overheating.

Share on:
Go To Top

Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.