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Questions tagged [heater-core]

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Coolant temp. is normal, no leak, but heater core unit gets very hot

Vehicle: 2005 Mazad3 Hatchback (1.5 L) 4AT Issue: The heater core unit beneath the dash unit gets very hot after around 15 mins drive (AC is turned off) While the coolant temp. gauge shows not ...
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2000 Ford Expedition XLT 5.4, Possible Toast Heater Core?

I recently just flushed my heater core on my 2000 Expedition. I did a full flush, then a reverse, then another flush. Filled heater core with anti-freeze to insure air didn't get trapped in the core. ...
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2008 Chevy Equinox: no heat in idle

My 2008 Equinox had not been getting heat in idle, but heat would come on when driving. There was also a strong coolant smell when heat was on. Recently, I was getting overheating messages on the dash,...
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Heater core failed for the second time

I have Volvo 850 and the heater core is leaking... again. The same thing happened 3 or 4 years ago. Is there some design issue that is causing this to happen repeatedly? If so, any long-term fix?
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Failed heater core DIY alternative hack

The problem: My friend's car has a non-functioning passenger side door, and in August, the heater core started leaking into the cabin. So I bypassed the core so the car could remain in use. Of course ...
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Peugeot 206 suspected heater matrix leak

Over the past few weeks, I've noticed large amounts of liquid on my passenger footwell (Peugeot 206). It happens infrequently and normally (AFAIK) overnight which led me to think its rainwater ingress....
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Ford F150 1999 4.6L anti freeze leaks from drain on engine wall

They say heater core, Ford dealer replaced it 3 years ago. Its leaking from the drain. I have luke warm air from vents. I was told to turn the temp knob from cold to hot a few times, I did and it ...