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Pontiac Grand Am

Why would the temperature gauge not raise after you installed a new water pump on a 1998 Pontiac Grand AM?



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It sounds like you may need either (a) a new thermostat (b) a new radiator pressure cap, (c) the temperatiure sensor sending unit is disconnected from the wire - or, (d) you need a new temp guage My bet is either on the disconnected sensor wire OR a new thermostat is needed.