× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Repeat heater core failure
Posted to HD/Fleet Forum on 4/18/2018 2 Replies

Search Aluminum Oxide, especially posts by Kevin McCartney.

Do an autopsy on the failed cores.

Take a generous sample from the radiator drain just after warm shutoff (so any sand will not all have settled out) and run it through a coffee filter.

If there... Login to read more.

2 Replies Received (View Replies)