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Discussion Starter · #1 ·
I have a frontera 2.2 (A) which would not produce any heat in the cabin. Found out I had a cracked head, got a reconditioned one fitted. Have changed the pipes round to the inlet to the heater matrix and changed the thermostat. When I did this run the engine to get the coolant round and great heat in the cabin, not over heating, fantastic....... Finished topping up the coolant, went out this evening and no heat! Driving home, heat again! Not great but heat and it only seems to give me heat when traveling slow, in a low gear, and high revs!

Any ideas!!!!!
 

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air lock in system some where mate.you need to run the system with the coolant bottle lid off untill the rad fans kick in and turn off. also have your heating on full heat.then that should sort the problem out.
 

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Discussion Starter · #3 ·
Hi Again. Have just been out to run the engine, with the coolant cap off till the fan kicked in to see if that would help the heater. The fan didn't kick in the coolant started boiling all over the place. Stopped the engine and have waited till it has cooled down a bit and topped up the levels, again. Should the fan have kicked in before boiling? could it be the fan temp sensor?
 

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Should the fan have kicked in before boiling? could it be the fan temp sensor?
should have kicked in but with system pressurised not open
 

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VXON Resident 4x4 and diesel specialist
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could be head gasket have it pressure checked on car
 

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Discussion Starter · #7 ·
I've had a reconditioned head, mine was cracked and head gasket and head skimmed. Could it go this quickly? Also seems to have sorted it's self out today!!!! Nice hot air, not fantastic but each time it seems to be getting hotter
 

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VXON Resident 4x4 and diesel specialist
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I've had a reconditioned head, mine was cracked and head gasket and head skimmed. Could it go this quickly? Also seems to have sorted it's self out today!!!! Nice hot air, not fantastic but each time it seems to be getting hotter
if not tightened properley could be weeping
 
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