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93 ES300 engine overheating

  #1  
Old 06-29-2007, 02:10 PM
Thread Starter
Join Date: Jan 2007
Posts: 1
Default 93 ES300 engine overheating

I had R12 freeon added last week. It all leaked out the same day. 4 days later, the engine overheated and ruptured a the radiator hose. I replaced the hose, and added antifreeze. 1 hour later, the engine overheated again and the antifreeze was gone. The next morning I started the car to see if it would get hot and the thermostat went to hot in 4 minutes just idling. If anyone can offer advice, I'd appreciate it.
Thanks
 
  #2  
Old 07-27-2007, 11:21 PM
Join Date: Jul 2007
Posts: 4
Default RE: 93 ES300 engine overheating

there are number of possible reasons or causes of overheating: a low coolant level; a coolant leak; a defective thermostat; poor airflow through the radiator; a collapsed lower lexus radiator hose; a slipping fan clutch; an eroded or loose water pump impeller or a deffective radiator cap. it would be best to check and re-check everything. keep us informed of what other things did you notice. good luck
 
  #3  
Old 07-30-2007, 10:38 AM
Join Date: Jul 2007
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Posts: 34
Default RE: 93 ES300 engine overheating

it could possibly be the thermostat..... i had a faulty thermostat and once it was replaced no problems...
 
  #4  
Old 07-30-2007, 10:40 AM
Join Date: Jul 2007
Location:
Posts: 34
Default RE: 93 ES300 engine overheating

what actually happened was the car would overheat.... i would turn on the heater and vent it and the car would run fine.... but once i turned the heater vent off then it would start to heat up again....i kept adding freon but it was getting annoying.... i took it in to get looked at and they told me it was the thermostat... if you are mechanically inclined you could do it yourself and by a thermostat for less then $20 i think.
 
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