IH8MUD Forums - View Single Post - First Highway test of the 60- Overheated.

humper99 · 08-08-04, 04:01 PM

I've heard of useing CLR to clean out a radiator. Safer than acid and won't eat up hoses. Drain it plug the bottom line, pour an entire bottle of CLR in and top with hot water. Let it sit and foam for awhile then flush the radiator real well. I'd try the new thermostat first. Cruising on the highway there should be enough airflow where the engine fan shouldn't be needed so you could kinda rule out the fan clutch. Also check the cooling fins of the radiator to make sure they are not bent up or clogged up with leaves, dead bugs, and dirt.

08-08-04, 04:01 PM	#6
humper99 IH8MUD Regular Join Date: Jun 2004 Location: Grand Rapids, MI Posts: 200	I've heard of useing CLR to clean out a radiator. Safer than acid and won't eat up hoses. Drain it plug the bottom line, pour an entire bottle of CLR in and top with hot water. Let it sit and foam for awhile then flush the radiator real well. I'd try the new thermostat first. Cruising on the highway there should be enough airflow where the engine fan shouldn't be needed so you could kinda rule out the fan clutch. Also check the cooling fins of the radiator to make sure they are not bent up or clogged up with leaves, dead bugs, and dirt.