How best to clean out the heater core without.

Tiny
WILD41
  • MEMBER
  • 1999 FORD TAURUS
  • 55,000 MILES
How best to clean out the heater core without removing the core from vehicle. The coolant system needs a good flush (looking at the color of the coolant) and the heater is intermittent at best. This is suggesting to us the core may be clogged.
Wednesday, December 5th, 2012 AT 2:16 PM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If you can do it just put a hose and back flush it. You can also buy prestone rad cleaner and run that through it, pull hose off of bottom of rad to get most junk out before putting rad cleaner in it.
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Wednesday, December 5th, 2012 AT 2:32 PM
Tiny
WILD41
  • MEMBER
  • 2 POSTS
Thanks for your timely response. I'll give this a try.
Thanks again. Wild41
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Wednesday, December 5th, 2012 AT 2:50 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
IF YOU HAVE LOTS OF MINERAL DEPOSITS FROM THE WATER. WE HAVE THIS ISSUE IN MY REGION

I'VE PLACED A SHORT 1-2 FOOT HEATER HOSE ON EACH OF THE CORE'S IN AND OUT TUBES

TURN THEM SKYWARD

POUR SOME "CLR" OR A SIMILAR PRODUCT INTO IT AND LET IT SIT A FEW HOURS (OR MORE)

RINSE IT OUT WELL BY STICKING THE GARDEN HOSE ON THE HOSES ONE AT A TIME---ALTERNATING THE DIRECTION OF FLOW THRU THE CORE

"CLR" WON'T EAT THE METAL

THE MEDIC
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Wednesday, December 5th, 2012 AT 9:09 PM
Tiny
WILD41
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Thanks for your input. Will give it at try.
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Thursday, December 6th, 2012 AT 12:36 AM

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