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the untracable coolant leak

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Old 10-24-2006, 06:09 PM
  #1  
93 LX FiveO
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Default the untracable coolant leak

lookin under the hood this morning i noticed my coolant was gone. radiator full and healthy green but the res was basicaly bone dry. i notice a trace of coolant comin from the 2 hoses from the firewall on the pass side.

also noticed some near the driver said head next to the tstat. not sure if thats really coolant or dye from the compressor [&:]

ive been using the heat more often now because its freezing out
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Old 10-24-2006, 06:10 PM
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88BlueGT
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Default RE: the untracable coolant leak

Im having the same problem... I have filled the res three times in the past month n a half. No trace or where its going. Got heat, car runs perfect, etc.
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Old 10-24-2006, 06:11 PM
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mustnglvr
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Default RE: the untracable coolant leak

Ihad that problem check uderneath your carpet on the passenger side mine was soked. My core leaked
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Old 10-24-2006, 06:13 PM
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88BlueGT
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Default RE: the untracable coolant leak

^^ He said that he was using heat though so that means that his heat works which means that his heater core is good whcih means that he wouldnt be leaking in the cabin lol
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Old 10-24-2006, 06:30 PM
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mustnglvr
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Default RE: the untracable coolant leak

If its been happening for awile the core can slowly leak.That doesnt necessarily mean that the core wont still work and heat the car. My heater was working fine when I found that my core was leaking on the floor
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Old 10-24-2006, 06:40 PM
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92hatchLX
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Default RE: the untracable coolant leak

Check your plugs and see if the ends are melted.
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Old 10-24-2006, 06:50 PM
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88BlueGT
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Default RE: the untracable coolant leak

Mine arent... Not sure about 93 LX though.
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Old 10-24-2006, 06:54 PM
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gspfunk
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Default RE: the untracable coolant leak

If it's not a heater core, it could be a head gasket w/ a slow leak. the coolant has to be going somewhere....
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Old 10-24-2006, 07:02 PM
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92hatchLX
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Default RE: the untracable coolant leak

We had a car in the shop the other day that had a leaking head gasket and the tips of his #2 spark plug was melted because the coolant was getting on them and cooling them down. Kind hard to explain.
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Old 10-24-2006, 07:54 PM
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fourfivefour
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Default RE: the untracable coolant leak

Don't forget to check the coolant reservoir tank for leaks. Remove the tank and fill it with water and check for leakage.
Use a cooling system pressure tester and pressurize the cooling system and look for leaks. Look around the bottom of the water pump and at the top of timing cover. Check your oil for chocolate milk shake like consistancy. Check your spark plugs. If you are burning the antifreeze you will find a plug that is clean like new. Usually when a heater core is leaking you will smell antifreeze inside the car and not be able to defrost the windows.
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