03 GL 1800 overheats


Information and questions on GL1800 Goldwings (2001-Present)
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bhenderson336
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Joined: Thu Nov 20, 2014 9:12 pm
Location: greensboro,nc
Motorcycle: 2003 GL1800

03 GL 1800 overheats

Postby bhenderson336 » Fri Sep 09, 2016 2:39 pm



On a recent trip, I was in stop and go traffic for two hours. My Wing 2003 1800 overheated, the two others riding with me had no problem. I found out in 2003 there was a service bulletin and if a person had this problem the dealer would replace the control module (main computer) Now I find out this free replacement stopped in 2006. Not only that but no one is making them anymore. The only solution the dealer gave me was to do all stop and go traffic in 2nd gear (it confuses the computer and makes the fan kick on earlier)...at the cost of ruining the transmission. Has anyone else run into this? What solutions have you found. Brian Greensboro, NC. Chapter W



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Re: 03 GL 1800 overheats

Postby FM-USA » Wed Sep 14, 2016 11:35 pm

I see you've been waiting a while... I don't have 'THE' answer but a suggestion.
I've read cars Control Module (CM) can be reprogrammed, maybe find out if your Wing's CM be reprogrammed?
Might have to do a little Net searching in auto sections, particularly hot rods.

HOPE THIS HELPS :)
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Taste testing as the miles flow, souring as that acid grows.
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Steve F
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'03 GL1800

Re: 03 GL 1800 overheats

Postby Steve F » Thu Sep 15, 2016 6:16 am

I've never heard of keeping it in 2nd is going to trick anything, but maybe put yourself into a false sense of security (doing so won't hurt your tranny, but maybe your clutch). However, keeping it under 15 mph will prevent the fans from shutting down. Once you get over 15, the fans stop and no cooling air through the radiators unless you're doing 30 or so.
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