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Changing coolant tank, do I really need to flush the system?

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Old 11-26-2004, 08:03 AM
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Default Changing coolant tank, do I really need to flush the system?

Had the system flushed maybe 6 months ago. Just looking to replace my leaking coolant expansion tank and top off what's missing. Is a flush really necessary?

And what water do I mix the coolant with, distilled water?

Thanks

(96 2.8 12v)
Old 11-26-2004, 08:04 AM
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No flush needed. May need to bleed it. Mix 50/50 with distilled water
Old 11-26-2004, 08:09 AM
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Default If the fluid is not dirty (and it shouldn't be, since it's 6 mo old) then not necessary.

Mix with distilled water as tap water has chemicals that can leave deposits in your cooling system.
Old 11-26-2004, 08:12 AM
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Default I'm slow... :-) Speaking of bleeding...

How do you do it on AEB motor? The repair manual says to disconnect one of the lines that go to the heater core (just slide it out a bit) and a bleed hole will open. However, on my car the heater core lines are deep down below the firewall, - hard to get to from above. Is there an easier method?
Old 11-26-2004, 08:14 AM
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Default bleeding is easy on a AEB...dunno about 96 2.8 12v

on any engine, as long as the end of the tank hose remains above it's point of connection on the other end, bleeding would not be needed.
Old 11-26-2004, 10:56 AM
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Default when i replaced mine on my 96 12v 2 years ago i just replaced it and refilled the tank and no..

problems
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