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2001 GMC Sierra 2500 HD Question: new recovery tank did not extinguish low coolant lite



, 8.1L V8, Barnett, MO, May 12, 2011, 07:33

low coolant is constant. I have plenty of coolant in tank. I replaced the recovery tank, but light is still on.

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  • Answer #1

    May 13, 2011, 15:51

    ON many newer GM vehicles, the low coolant light is controlled by a module that is on the radiator. It has 3 wires and is usually below the radiator neck. Look for it.

    Also, I would go to www.alldatadiy.com and get a subscription for your Truck, its very reasonable. That way you will have pictures and all the info that you need. Then you will know.

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