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Mar 1, 2007 | 01:17 PM

aztec416

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Whats going on?

Hey guys. I just installed a new Meziere Elec Water pump. My old water pump was leaking and the low coolant light was always on. After the install the low coolant light keeps coming on. The radiator is full and so is the reservoir bottle. There are no leaks. I followed the directions on LS1howto. I would turn it off to make sure there was enough water and there was. I hear the electric pump when I turn the key to the on position. What can it be? A sensor? Any help will be appreciated. I also installed an underdrive pulley at the same time. This is on a 99 TA.

Mar 1, 2007 | 01:34 PM

fergymoto

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From: Rock Hill, SC

Coolant level sensor.

Mar 1, 2007 | 01:35 PM

superchargedbandit

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From: Indiana

Sounds Right.

Mar 1, 2007 | 01:55 PM

2001NBMZ28

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From: Jacksonville, FL

Low coolant level sensor in the radiator, they go bad sometimes. You can try taking it out and cleaning it, replace it, or just unplug it and the light will stay off.

Mar 1, 2007 | 01:58 PM

99Z28LS1

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From: San Antonio

i have the same problem, its the sensor

Mar 1, 2007 | 02:47 PM

aztec416

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Thanks for the info. Ill probably replace the sensor.

Mar 1, 2007 | 08:32 PM

TheBlurLS1

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From: Nederland Texas

Don't replace the sensor, just unplug it. Those sensors are so crappy, that GM stopped installing them in the later f-bodies. When you unplug it, the light should go off. Mine comes on every now and then (goes off after I kill the car usually), and it's not even plugged in.