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Guest Message by DevFuse
 

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Coolant flush?


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9 replies to this topic

#1 etc

etc

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Posted 19 December 2008 - 03:58 PM

1998 legacy L, 2.2L auto, 147K miles


How do I flush the coolant (Nothing good seen in the search)

#2 98obster

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Posted 19 December 2008 - 06:48 PM

I have done a "reverse" flush by disconnecting the driverside hose to the heater core and flushing with a garden hose.

#3 Rooster2

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Posted 19 December 2008 - 07:44 PM

If you live in a warm climate, water flush as described by 98OBster. You can also add a can of chemical flush, drive for a few days, drain, water flush, add 50/50 coolant/water to finish the job.

#4 etc

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Posted 20 December 2008 - 12:13 PM

Can I just drain the radiator and then fill it up again?

#5 Durania

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Posted 20 December 2008 - 03:33 PM

Can I just drain the radiator and then fill it up again?


You can but that is not considered a flush but a drain and fill. A flush is like 90obster described which involves flushing out the heater core and everything.

#6 etc

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Posted 20 December 2008 - 04:04 PM

I opened the drain on the radiator but the coolant was coming out very slow, basically dripping. I know it should come out a lot faster than that.

Is the radiator plugged somehow? It was full when I looked into it.

#7 Durania

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Posted 20 December 2008 - 07:40 PM

Did you have radiator cap off? Same principle as the portable gas can, air behind so liquid can go out. You could just disconnect the lower radiator hose.

#8 etc

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Posted 20 December 2008 - 10:22 PM

Yes, the cap was off. It was a drip basically, not a stream.

#9 grossgary

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Posted 21 December 2008 - 12:10 AM

the drain plug probably wasn't opened far enough or turned at the right angle? i think the notch in it has to line up right so to speak?

#10 etc

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Posted 21 December 2008 - 01:32 AM

No, the drain plug was completely removed.

I drained the radiator on a Loyale one time and I know I got a stream instead of a drip like here.




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