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Old 03-28-2016, 07:07 PM   #1
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Radiator Refill

I drained off about 5 gals of coolant to change my hoses, 4 drained and 1 other was lost when hoses were cut.

Is there anything I need to do other than just put the coolant back in and add a gallon or so?

I remember hearing something about bleeding the system.

Thanks, Terry
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Old 03-28-2016, 10:13 PM   #2
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What engine do you have?
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Old 03-29-2016, 02:53 PM   #3
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On my 05 with 400 ISL there is a thermostat bypass hose the goes to the expansion tank. It should self bleed. I just replaced my water pump and flushed and replaced the coolant. It seem to bleed just fine.
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Old 03-29-2016, 03:03 PM   #4
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1. Remember that coolant goes all the way up to the dashboard heat/defrost system, and in some systems to the water heater if equipped with heat exchanger. Set the dashboard controls to full heat. You do not need the blower to be running.

2. Allow the engine to warm up normally while carefully watching the temp. gauge on the dash. Be alert for a sudden spiking of temperature.

3. If everything goes well, shut the engine down and let it cool. Check the expansion tank/resevoir and top off as necessary.

4. Repeat again twice.

5. Run on the road while carefully watching the temperature.


This is an over-cautious approach, but well worth it IMO.
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Old 03-31-2016, 08:54 PM   #5
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Quote:
Originally Posted by Wayne R View Post
On my 05 with 400 ISL there is a thermostat bypass hose the goes to the expansion tank. It should self bleed. I just replaced my water pump and flushed and replaced the coolant. It seem to bleed just fine.
Thanks Wayne, I'll dump it in and warm it up a couple of times.
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