Topic: Flush Heater Core

[birfection]

Will flushing the radiator clean the heater core? If not, how can i flush the heater core? (I own a 1980 Pickup)

[Skinny_Pedal]

A lot of the first gen trucks have had a flush valve inline with the heatcore hoses. You could run a hose to it and get it done. If you don't have one already, go to any autoparts store, know more than $10 for one.
You could also remove the lower radiator hose from the radiator. Stick a garden hose in the hose, and run the truck with the water on. Have the heater on to. Run for about 30min till it comes out clean water

[1stgenboy]

A lot of the first gen trucks have had a flush valve inline with the heatcore hoses. You could run a hose to it and get it done. If you don't have one already, go to any autoparts store, know more than $10 for one.
You could also remove the lower radiator hose from the radiator. Stick a garden hose in the hose, and run the truck with the water on. Have the heater on to. Run for about 30min till it comes out clean water

WHAT?

[85_4RNR]

Thats probably why you dont have heat like mine didnt have it. Danny flushed it and it puked all over him brown crap. Then i had heat magically. I baught the hose adapter at ace and then returned it lol. One time use, no big deal.

[Skinny_Pedal]

WHAT?

Can you not read

[fatlife]

Im having the same problem in my 91.  I will have to give that a try...

[emsvitil]

Make sure you turn the heater on...............

[Thomas P]

i just did this, then pulled my fan motor out and cleaned a ton of BS out of the "squirrel cage" and it made a night and day difference, I did it without the heater on, should that matter? i made sure the valve was open....

[OOPS]

Pull the heater hoses off at the firewall. Then back flush it, flush from the side that does not have the valve on it, open the valve wide open. Back flushing will getmore crap out of it.