Heat not working after replacing thermostat and water pump

Asked by Mar 04, 2017 at 06:32 AM about the 2008 Pontiac Torrent

Question type: Maintenance & Repair

My car overheated replaced the water
pump and thermostat..thought that
should fix my cats heater problem
which only got heat from it on
occasions but now my heart does not
work at all

5 Answers


Sounds like the cooling system needs to be purged from the air that is trapped. Anytime you open up the cooling system it needs to be purged. Check this out on how too.... www.youtube.com/watch?v=zUpXgAJ1gjU

1 people found this helpful.

I have a 2008 pontiac torrent..the mechanic said he bled the lines do you think the hatter core needs to be flushed


If the vehicle is not over heating, then you could try a flush, it would hurt for the radiator to be flushed anyway. Most of time that is what it takes. So a cooling system flush would be good to do.

1 people found this helpful.

No it is not overheating..could it possibly be a head gasket


Head gasket only if the engine was overheating would be one cause, but since it is not just the radiator and heater core flush is necessary, cooling system flush.

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