Question about 2000 GMC Sierra
Just guessing but, I'd say either fan clutch is going bad, not turning as fast as it should be once temps go up or if you have electric fans, either fans or relays bad. I'm leaning more toward the fan clutch. The fins on the impeller of the waterpump can also wear done over time and reduce the amount of water flow.You may also want to make sure the fins in the radiator are clean and not stopping air flow. I'm assuming that when you're moving there's no problem so that should say that water pump, thermostat are doing good. Please rate this. Thanks
Posted on Jul 02, 2009
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Posted on Jan 02, 2017
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