Thread: grounding the aluminum heater core and rad

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Most of the aluminum coolant pieces I see that are gone bad is because the owner didn't keep an eye on the coolant condition. Most parts stores selll test strips and additives to prevent this. Never have heard of electrolysis causing it.

I'm not familure with the heater core mounting but I have a 91 Chevy Suburban with rear air. The tubing to the rear is aluminun ant its held on to the body with steel clamps they both rotted away. New tubes were several hundred buck. My suburban now has no rear air.