Coolant Low Light - Ford Mustang Forum

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post #1 of 3 (permalink) Old 04-18-2013 Thread Starter
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Joined: Jan 2010
Location: Leavenworth
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Coolant Low Light

I have 98 Mustang GT - from time to time my low coolant light comes on. When coolant is checked it is always full...maybe sometimes add a small amount. Sometimes that makes the light go off, but this time it didn't. The car isn't overheating, everything looks normal except for the light. I have a new radiator, radiator cap, coolant overflow container, hoses, water pump, heater core. I don't see any coolant under the hood or under the car. Any help or ideas?? Thanks!

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post #2 of 3 (permalink) Old 04-19-2013
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Could be the coolant level sensor, or a bad connection/wiring to the sensor. It should be located somewhere on the coolant overflow reservoir.

2001 GT Convertible
/1967 Coupe
All the usual bolt-on's /200 I6, C4

And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4
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post #3 of 3 (permalink) Old 04-28-2013
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Joined: Mar 2004
Location: Willamette Valley
Posts: 84
I had the same issue in my '99 GT. I just unplugged the sensor in the top of the tank and kept a regular eye on my coolant to make sure the level stayed where it should be. I think it's been a somewhat common issue with these cars.

1999 GT (Stock for now)
1999 EB Explorer (Wife's)
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