Nissan Qashqai water not circulating through heater
Variant: 1.5 dci
Model Year: 2011
Categories:
Engine & Drivetrain
pipes clear matrix clear new water pump fitted new thermostat fitted circulates at 2800 rpm and above
Posted: Jan 7, 2025 (1 week ago)
Try bleeding cooling system in case of an air lock .
Posted Jan 8, 2025 (6 days ago)
I have bled system several times and also have used vacuum fill temp hand will reach operating temperature but pipe from stat to heater matrix cold
Posted Jan 8, 2025 (6 days ago)
System bled again today and no traces of air in any pipes or radiators so did vacuum fill and still no heat from stat to matrix
Posted Jan 8, 2025 (6 days ago)
Carry out a cooling system block test
Posted Jan 8, 2025 (6 days ago)
cooling system block correct with no problem with it when engine revs are around 1800 rpm water flows through matrix but not lower puts water out header tank and cap has been replaced have replaced stat again but no change i am confused as i have not got a clue and nissan are no help either i wonder could the new water pump be faulty
Posted Jan 11, 2025 (3 days ago)
Sounds like cyl. head / gasket faulty and pressurising the cooling system when running . This should show if a block test carried out . Normally if faulty you may feel the rad hoses harden till pressure released .Always possible faulty water pump but very unusual .
Posted Jan 12, 2025 (2 days ago)
Not sure of the set up on that year / vehicle but if fitted , may be a faulty heater control valve .
Posted Jan 12, 2025 (2 days ago)
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