2008 Pontiac G6 Running hot

2008 PONTIAC G6
188,000 MILES • 3.5L • V6 • FWD • AUTOMATIC
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CHRISTYWARD79
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  • 1 POST
Turned car off and it leaked coolant out so changed water pump and took thermostat out still runs hot what else is the problem
Oct 1, 2015 at 9:22 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Remove the radiator and get it core cleaned, and check for a head gasket fault
Oct 1, 2015 at 9:32 PM
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CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
Plugged radiator internally, radiator plugged with butterfly collection, thermostat missing so hot coolant doesn't stay in the radiator long enough to give up its heat, too much antifreeze and not enough water in the coolant, radiator fan not turning on, leaking cylinder head gasket, . . .

It all depends on the degree of overheating, when it occurs, at what speeds it occurs, etc. You didn't include any clues or observations. Did this start happening suddenly?
Oct 1, 2015 at 9:54 PM
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