Vauxhall Vivaro vauxhall vivaro heaters blowing cold air.
Model Year: 2011
Categories:
Running Rough, Starting & Power Loss
My heaters are blowing cold air.water pump, thermostat has been replaced,
And I have removed the heater matrix there is no leaks or blockage as far as the garage concerned. but no improvement. Air is still getting in the system which the garage has bled at least a dozen times. They think there is a problem with the head gasket so we are at a loss as to the problem. They done a pressure test which was normal it don't lose no coolant at all. When the garage has bled the air out they manage to get it to blow hot air but it only lasts for around 5 mins then slowly goes cold. Any ideas ?????
And I have removed the heater matrix there is no leaks or blockage as far as the garage concerned. but no improvement. Air is still getting in the system which the garage has bled at least a dozen times. They think there is a problem with the head gasket so we are at a loss as to the problem. They done a pressure test which was normal it don't lose no coolant at all. When the garage has bled the air out they manage to get it to blow hot air but it only lasts for around 5 mins then slowly goes cold. Any ideas ?????
Posted: Dec 30, 2016 (7 years ago)
Carry out a block test and that will confirm if head / head gasket gone .
Posted Dec 30, 2016 (7 years ago)
What pressure did your garage pump the system up to?
Diesels run quite a bit higher than petrol,
on yours I usually pressurise the coolant system to 15 psi.
Diesels run quite a bit higher than petrol,
on yours I usually pressurise the coolant system to 15 psi.
Posted Dec 31, 2016 (7 years ago)
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