Heater trouble advice please

DRC66 · 2nd May 2020, 09:04

I have a 2003 2.5 connie. The thermostat housing starting leaking coolant so was replaced. Ever since the heater only blows our tepid warm air. Before the thermostat replacement the heating worked fine.
I have no coolant loss and the engine runs at it’s normal temperature.
Could it be 17 years of gunge in the heater matrix? It’s been suggested that it could be the head gaskets although the engine still pulls like a train and the oil cap is clean.
Just wondering if any members have experienced similar and how they sorted it.

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trikey · 2nd May 2020, 09:13

Sounds like an airlock to me, if it was ok before dropping the coolant then it should be the same once refilled.

Have a search on here for the refill procedure.

2nd May 2020, 09:04	#1
DRC66 Avid contributor Rover 75 and 75 Tourer Join Date: Aug 2015 Location: Dolphinton Posts: 156 Thanks: 11 Thanked 154 Times in 47 Posts	Heater trouble advice please I have a 2003 2.5 connie. The thermostat housing starting leaking coolant so was replaced. Ever since the heater only blows our tepid warm air. Before the thermostat replacement the heating worked fine. I have no coolant loss and the engine runs at it’s normal temperature. Could it be 17 years of gunge in the heater matrix? It’s been suggested that it could be the head gaskets although the engine still pulls like a train and the oil cap is clean. Just wondering if any members have experienced similar and how they sorted it. Sent from my iPhone using Tapatalk

2nd May 2020, 09:13	#2
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,773 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Sounds like an airlock to me, if it was ok before dropping the coolant then it should be the same once refilled. Have a search on here for the refill procedure. __________________ Lest we forget..