Having problems with your 2002 Pontiac Grand Prix ?

Temp gauge goes upand down no heat from heater cold air

\015 Car temp gauge went up, car overheated, had Flush & Fill service, now Temp gauge goes all the way up, Ar 2000 Rpm, Temp gauge goes down to 195, then goes up and down when u accelerate, the heater is giving very little heat, then changes to all cold air. No apparent leaks, engine steam clean, antifreeze is fine, The miledge is 80,000, owner never had cooling system FLUSHED until NOW! Checked oil,seems fine no milky substance. The temp gauge goes up and down, no sign of overheating, also no heat from heater, changed to cold air. Help, I need heat this week is going to be 21 Degrees very cold, thank you.Motor is 3100 V-6, automatic,Pontiac Grand Prix.\015 Posted / edited by AnonymousUser on : 19-03-2018

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Repair Help & Product Troubleshooting for 2002 Pontiac Grand Prix

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