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Author Topic: Temperature warning light came on  (Read 1001 times)
jknomad
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Posts: 25

Tampa Florida


« on: April 23, 2016, 01:43:26 PM »

Riding down main st. At Leesburg bikefest. .slow riding and near 90 outside temp...light came on.  Soon as i got off main and moving it went off.  Should I be concerned or would this be normal.   I have felt this 01 IS runs hotter than my 00 did.  Changed coolant a month ago.   Fan was working.
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MarkT
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VRCC #437 "Form follows Function"

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« Reply #1 on: April 23, 2016, 01:54:15 PM »

Light shouldn't come on, the cooling system should handle those conditions.  Sounds marginal. Cheapest and even a likely fix is the thermostat. Change that and dupe conditions. Secondly, the temp warning sending unit.  You did use silicon-free antifreeze, right?  Silicon antifeeze tends to make the pump fail and leak.
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Vietnam-474 TFW Takhli 9-12/72 Linebckr II;307 SBW U-Tapao 05/73-4
pancho
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Bonanza Arkansas


« Reply #2 on: April 23, 2016, 01:58:12 PM »

CHeck your coolant level in the radiator and overfill tank,, make sure you are filled up.
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The most expensive things you will purchase, are those things you would not have needed if you had listened and obeyed.
jknomad
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Tampa Florida


« Reply #3 on: April 23, 2016, 02:03:02 PM »

Level on overflow looks good and non silicone collants was added.
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pancho
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Posts: 2113


Bonanza Arkansas


« Reply #4 on: April 23, 2016, 02:08:51 PM »

THere is a sensor on the left lower side of the radiator,, remove the wire and ground the connector to the frame with the key on to verify the fan operation, and remove the radiator cap to insure the system is full,, full overflow tank does not insure system is full, could be a pinched hose,, there is a lock screw that must be removed.
« Last Edit: April 23, 2016, 02:16:00 PM by pancho » Logged

The most expensive things you will purchase, are those things you would not have needed if you had listened and obeyed.
pancho
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Bonanza Arkansas


« Reply #5 on: April 23, 2016, 02:11:25 PM »

You said fan was working,, does that mean the fan was running when the temp light came on?
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The most expensive things you will purchase, are those things you would not have needed if you had listened and obeyed.
jknomad
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Posts: 25

Tampa Florida


« Reply #6 on: April 23, 2016, 02:17:18 PM »

Yes ..fan was running the whole time.
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Bighead
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Madison Alabama


« Reply #7 on: April 23, 2016, 03:55:46 PM »

Had mine come on once in the middle of Bum-F@&ked no where New Mexico when slow but when running above about 45 no light all fluid levels correct. Hasn't happened since it was about 102 that day Shocked and three years ago coolsmiley
« Last Edit: April 24, 2016, 11:51:47 AM by Bighead » Logged

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Ramie
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2001 I/S St. Michael MN


« Reply #8 on: April 23, 2016, 05:20:31 PM »

Could be you have air in the system, did you burp the radiator good after changing the coolant to get all the air out?
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Rio Wil
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« Reply #9 on: April 23, 2016, 08:20:56 PM »

I have a stretch of road I travel during commute hours....the wind consistently blows from behind the bike. During 90+ days and a 25 mile wind and stop and go traffic, my IS temp light came on twice in maybe a two week interval. Finally occurred to me the slow speed coupled with the wind coming from behind essentially created a vacuum in front of the radiator and virtually negated the fans ability to move air through the radiator. Splitting lanes and keeping the speed up a bit solved the problem. Same thing happened several years ago in a Dodge van, wind from the rear slow speed traffic and the fan simply could not move enough air to cool the radiator.

 On a real temp gauge, you can see this phenomena as the needle move from normal position to by 2-4 needles width toward hot and then return to normal when speed is increased or wind direction changes. Today's cars with gauges are typically fed from the engine control unit and they register an ideal setting of them needle (so as not to concern the driver) for a engine temp range of maybe 180 to 220.....needle wont move off the ideal position.  Same with oil pressure gauges, Chrysler fixed their complaints of low oil pressure at idle when the engines are at at operating temps with this very method.  My Ford F150 has a set of gauges that are of this design.......so much for reading actual engine conditions.

In any case, doubt you have anything to worry about if there is sufficient coolant and you said the fan was running....
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MarkT
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VRCC #437 "Form follows Function"

Colorado Front Range - elevation 2.005 km


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« Reply #10 on: April 23, 2016, 10:22:06 PM »

Honda did a similar fix to the GL1800 wing back in 2003 or so.  There was an overheating problem.  One of their "fixes" was to install a resistor in the line to the temp gauge.  Thereby lowering the temp gauge, not fixing the problem.
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Vietnam-474 TFW Takhli 9-12/72 Linebckr II;307 SBW U-Tapao 05/73-4
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