1990 GL1500 overheating


Information and questions on GL1500 Goldwings (1988-2000)
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bush_jvn
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Joined: Sat Aug 14, 2010 9:10 am
Location: Mitchell, South Dakota
Motorcycle: 2001 GL1800
1990 GL1500

1990 GL1500 overheating

Post by bush_jvn » Thu Sep 23, 2010 4:23 pm



The first thing I did was replace the thermostat, not the problem. Then realized the radiator fans were not operating. Manual indicates that it would be the thermal fan switch. So I replaced, but found no fluid in the left radiator, I thought that odd, and the new switch did not fix the problem. Could this be the coolant sensor out and not allowing any fluid to pump? I new someone else that their fans continually ran when the coolant sensor was out so I did not think that the problem. I grounded the fan switch and got the fans to run so I know the fans are good. Any ideas?



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detdrbuzzard
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Re: 1990 GL1500 overheating

Post by detdrbuzzard » Thu Sep 23, 2010 9:15 pm

air trapped in the system
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kahunah
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Motorcycle: 1989 GL1500 Goldwing

Re: 1990 GL1500 overheating

Post by kahunah » Fri Sep 24, 2010 5:37 pm

That's really strange. The radiators are paralell. If the right is full so should the left be. Has someone by-passed it? The fan switch will not close if there is no coolant around it.

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bush_jvn
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Joined: Sat Aug 14, 2010 9:10 am
Location: Mitchell, South Dakota
Motorcycle: 2001 GL1800
1990 GL1500

Re: 1990 GL1500 overheating

Post by bush_jvn » Sat Sep 25, 2010 7:17 am

kahunah wrote:That's really strange. The radiators are paralell. If the right is full so should the left be. Has someone by-passed it? The fan switch will not close if there is no coolant around it.
The right is not full, both dry



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