Coolant Flush


Information and questions on GL1800 Goldwings (2001-2017)
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mlhconsultants
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Joined: Thu Jun 11, 2020 2:24 pm
Location: Southfield, MI
Motorcycle: 2001 Goldwing 1800

Coolant Flush

Post by mlhconsultants »



I recently bought 2001Goldwing 1800. I was trying to do a coolant flush. I removed the bottom plug and nothing came out. I check the radiator cap and it shows full with fluid. Any idea what's going on?


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tfdeputydawg
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Re: Coolant Flush

Post by tfdeputydawg »

Was the engine warm and did you leave the radiator cap off
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Ghostman
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Re: Coolant Flush

Post by Ghostman »

Sometimes the drain gets clogged especially if its been a long time in between coolant changes..
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keithg64
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Motorcycle: 2007 Gl1800HPNA Blue
2000 GL1500 Pearl Coranado Blue -sold

Re: Coolant Flush

Post by keithg64 »

Yes, you can use a short piece of coat hanger to brake away any hard deposits. And are you absolutely sure you pulled the drain plug ?
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mlhconsultants
Posts: 5
Joined: Thu Jun 11, 2020 2:24 pm
Location: Southfield, MI
Motorcycle: 2001 Goldwing 1800

Re: Coolant Flush

Post by mlhconsultants »

tfdeputydawg wrote: Wed Jun 17, 2020 2:16 am Was the engine warm and did you leave the radiator cap off
Engine was not warm, I was trying to do it when I first got home so it was cold.
mlhconsultants
Posts: 5
Joined: Thu Jun 11, 2020 2:24 pm
Location: Southfield, MI
Motorcycle: 2001 Goldwing 1800

Re: Coolant Flush

Post by mlhconsultants »

keithg64 wrote: Wed Jun 17, 2020 8:25 am Yes, you can use a short piece of coat hanger to brake away any hard deposits. And are you absolutely sure you pulled the drain plug ?
I found the right plug its a 8mm bolt correct right near the oil filter almost hidden. I was figuring clogged as well. So I just put the plug back on. I guess I need to try the coat hanger. I just got the back so I was trying to do the basics that are simple to do. I went from a 1987 1200 to a 2001 1800.
mlhconsultants
Posts: 5
Joined: Thu Jun 11, 2020 2:24 pm
Location: Southfield, MI
Motorcycle: 2001 Goldwing 1800

Re: Coolant Flush

Post by mlhconsultants »

tfdeputydawg wrote: Wed Jun 17, 2020 2:16 am Was the engine warm and did you leave the radiator cap off
Engine was not warm and yes I removed the cap. It was very dry no moisture at all. I kept thinking maybe I have the wrong plug but I checked several videos and it appears to be it. The bike is running temp and halfway mark. It has not overheated or anything since I picked it up a couple weeks ago.
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keithg64
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2000 GL1500 Pearl Coranado Blue -sold

Re: Coolant Flush

Post by keithg64 »

It's not what you buy, it's what you build.
mlhconsultants
Posts: 5
Joined: Thu Jun 11, 2020 2:24 pm
Location: Southfield, MI
Motorcycle: 2001 Goldwing 1800

Re: Coolant Flush

Post by mlhconsultants »

Thanks this is pretty much all the steps I followed. Maybe it's clogged at the bottom like one person said. I will try again. I'm going to the dealer today so I will ask the tech there for a tip as well.
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Asphaltmaniac
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2006 1800 Goldwing
2017 BMW 1200 GS Adventure...

Re: Coolant Flush

Post by Asphaltmaniac »

Could be the rather small drain hose is so old its swelled up closed inside? Those hoses are also in the vicinity of the exhaust manifold. Replaced my 06's a few years back and they were mighty CRISPY.


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