Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › No heat at idle with new heater core › No heat at idle with new heater core
November 30, 2019 at 10:56 am
#895374
Assuming you have a 3.3L.
What your describing sounds like air entrapment with in the cooling system.
Now if the system has been properly bleed and this is still occurring you may have a different issue.
Are you seeing any coolant loss over time?
Have you tested for a possible head gasket problem ( combustion gas test ) ?
Have you checked the radiator cap ?