Coolant Flush ???
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Junior User
Joined: Jul 2004
Posts: 69
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Coolant Flush ???
Hey guys, I am flushing m,y coolant system---question is: Is it safe to add the fresh water into the motor between flushes while its still hot? It says run for 5 min, with heater on, drain, fill, run and drain again---I was wondering if the cool water added to hot motor could crack something......pleez help
ps--how do u bleed the air from these 7.3 motors after flushing?
thx
ps--how do u bleed the air from these 7.3 motors after flushing?
thx
FTE Leadership Emeritus
Joined: May 2001
Posts: 13,653
Likes: 6
From: Cabot, Arkansas
Originally Posted by paramedic624
Hey guys, I am flushing m,y coolant system---question is: Is it safe to add the fresh water into the motor between flushes while its still hot? It says run for 5 min, with heater on, drain, fill, run and drain again---I was wondering if the cool water added to hot motor could crack something......pleez help
ps--how do u bleed the air from these 7.3 motors after flushing?
thx
ps--how do u bleed the air from these 7.3 motors after flushing?
thx
Once you get it all buttoned back up you can burp the pump with the heater hose on top of the pump. You will still have to watch it for a few days, as the air trapped down in it makes it's way to the degas bottle the level will drop some.
Senior User
Joined: Jul 2004
Posts: 318
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How much DCA do you add when doing complete drain & flush? Is 1 pint enough? Also I have read about people checking their PH levels and some other level(can't remember that one) Do I need to being checking these items? Or is temp freeze/boil enough?
Senior User
Joined: Apr 2004
Posts: 241
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From: Seattle
Yes, you definitely need to be checking these items. It is important to the health and longevity of your PSD. Heres what you need to check: http://www.fleetguard.com/fleet/en/p...p?SMSESSION=NO
Senior User
Joined: Feb 2004
Posts: 220
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From: Sebring, FL
Have a quick question not trying to sound dumb but why do you need to monitor the PH in the coolant? What is DCA?, is it an additive, Is it just diesels that need this much attention or does this apply to gas engines also. I have a coolant filter on my truck and change the coolant every so many thousands of miles as required is ther more I should be doing?
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