Why is my grand prix running cold

Asked by Oct 26, 2016 at 04:38 AM about the 2001 Pontiac Grand Prix GT

Question type: Maintenance & Repair

Its a 2001

2 Answers

8,655

change the coolant thermostat before it runs too rich and wrecks the cat. ...esp if u live in CA or a state with smog inspection.

5,165

And of course make sure the cooling system is full. Sometimes you think its running cool because the heater only blows cold air. In reality it is likely running hot. Either way its bad. Top up the coolant and put in a new thermostat like Jason said. Also make sure there is no air trapped i the system. That's bad too.

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    Js08016
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