Radiator flush. Backflush heater core or not?
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Senior User
Joined: Dec 1999
Posts: 178
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From: Pcola, FL
Radiator flush. Backflush heater core or not?
I plan to change my coolant this weekend. Haynes manual says heater core should be backflushed also as part of radiator/coolant maintenance. Is that required when changing/flushing the antfreeze? When I had my Ranger a while back, I didn't backflush the heater core when I flushed the radiator. Opinions?
(I have a 2001 4.0 SOHC.)
(I have a 2001 4.0 SOHC.)
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
I use a Prestone flush T thats spliced into a heater hose on my 87. Just hook the garden hose up to it & it backflushes everything including the heater core. Very handy little gadget.
To answer your question, yes you should flush the heater core.
To answer your question, yes you should flush the heater core.
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
I think you're going to like that kit, it makes a good flush so simple to do. And when your finished with the flush, just drain the radiator. Then add a gallon of antifreeze & top it off with distilled water.
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