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97 aurora overheats new stat flush system oil not milky or over filled new cap still overheat but when i put the cap on half way tighten i dont overheat whats my problem

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Was the engine overheating before you replaced the thermostat ?
By not putting the cap on tight, you are not allowing the cooling system to build up pressure. So it could be a restriction somewhere like a radiator hose.

Posted on Apr 24, 2013

  • 1 more comment 
  • jermaine Apr 25, 2013

    I bought the car it was overheating the old owner said he changedbthe stat i changed it again i put it in the same way i took the old one out is it possible it is in backwards. Do i have a clog rad hose

  •  Stephen
    Stephen Apr 25, 2013

    If the thermostat was in wrong, the radiator cap would have no effect. If the stat was in backwards, the engine would overheat before the thermostat would get hot enough to open. So yes I would look at the hoses and you may want to have a shop check the cooling system for exhaust gas. Sign of a leaking head gasket.

  • jermaine Apr 25, 2013

    Yes i did that already with the block tester the blue liquid i let the car run for about 15 20 min and the liquid never turned green or yellow it stayed blue



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SOURCE: over heating

with a 1993 you do not want to run it with out the thermostat it will damage the engine but you might want to try getting a low temp thermostat from advance auto parts and try that

Posted on Dec 05, 2008

  • 6674 Answers

SOURCE: jetta overheats when on highway

Flush, new coolant & thermostat are always a good place to start, but take a close feel of your rad hoses as well for possible collapsing under high rpm's. If it has some real spongy/soft spots that are easy to squeeze together, it may be a good spot for collapsing and causing restriction, especially at higher rpm's.

Posted on Jun 19, 2009

  • 158 Answers

SOURCE: new fan clutch t-stat still overheats

Yes, I am sorry to say this could be a blown head gasket. It could also be a bad water pump. Lets hope that it is the pump. You can get a pump replace for under $200.00 as opposed to the head gasket which runs over a thousand. It really sounds like water pump problem because you are not getting heated water to you heater core, where This would also cause the non mixing of fluids. Take the radiator cap off and see if you get bubbles rising to the to cover. Also if you rev the engine up and water comes shooting out the radiator cover hole the you definetely have a head gasket problem. Be very careful not to burn yourself. I bet anything it is just a pump. Gaskets ususally only go bad if you drive the car while overheating. Lets get this solved for you. Send me your qustions and we will get you taken care of. Please leave me good feedback, it means a lot to me....

Posted on Jul 20, 2009

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SOURCE: changed entire cooling system and still overheats

The overheat sounds like an air pocket in the cooling system there are two bleeder screws located on top of thermostate hosing and 1 on the metal pipe just above the water pump I believe they are 7mm. with the radiator cap off and the car running slowly open 1 bleeder at a time just crack it loose until you get a steady stream of coolant make sure to keep the level in the radiator up. be carefull coolant may be hot! when you take the oil cap off you are creating a big vacuum leak thru the PCV (positive crankcase ventalation) system this is normal for this car to surge or die.

Posted on Aug 02, 2009

  • 574 Answers

SOURCE: 98 cadillac seville 4.6 overheating

are your fans or fan working if not it will get hot. I assume you have electric fans or fan if so make sure when it starts to overheat the fan or fans come on if not check the fuse for the fans or relay, breaker, wiring itself.

Posted on Sep 03, 2009

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