Question about 2006 Pontiac G6

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My pontiac g6 just start leaking coolant and running hot what is the problem and is it expensive to fix

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  • George May 11, 2010

    Where is the coolant leaking from ?

  • jim8366
    jim8366 Nov 11, 2012

    Can't say this has been viewed since posted, but GM recommended replacement of the coolant crossover pipe gaskets. Coolant leaking from a hot engine (under pressure) generally noticed dripping down the passenger side of the vehicle, onto the cross-member and frame. GM did not recall for this deficiency and it has plagued the 3.9L and 3.5L V6 engines. Keep adding coolant to prevent overheating and schedule the recommended repair ASAP. When shopping for a GM with 3.9L, be sure to ask that this has been done. If not, leverage the price down and do it first.

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  • 333 Answers

Check where it is leaking from.if from rad overflow it could be you thermostat and inexpensive to replace or possibly rad cap.You can sometimes check if stat is working by getting motor to running temp and check if rad pipe to motor is getting hot if this is the case it is probably working.You might also have to check if you open rad cap(when COLD)run motor and see if there are any bubbles in this case worstsenario is head gasket ,pump or even worse cracked head(very expensive)

hope this helps but you may need specialist equipment for a full diagnosis if the simple solutions have not solved your problem

Posted on Aug 02, 2009

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