Symptoms Of Heater Core Failure

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Symptoms Of Heater Core Failure

  k* j- F6 U) J7 gHow do you know if your heater core is bad? Here are a few clues:

! x( f* q/ N& v6 K: C' LYour radiator is full of fluid, the thermostat works fine, but you still have no heat.
* O6 A0 D+ J+ y+ e0 b% H! v% mYou find a puddle of antifreeze on the passenger side footwell inside the car.
You smell antifreeze when you run the heater or defroster.
" k8 ]6 [+ ^( l9 _) ?. mYou see puffs of smoke coming out of the defroster or vent ducts.
7 \1 q. b% ?) p& gYour windshield fogs up during or after you run the heater/defroster.
A way to double check this is to get the car warm, and touch both small hoses that go from the engine block to the heater core. If one hose is cold, the other warm, you've probably got yourself a dead core. You can always have your coolant system flushed and hope that it clears up the problem, but if it doesn't, it's core replacement time for sure.
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