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Temperature light is blinking???

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Old Nov 28, 2008 | 09:16 AM
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Temperature light is blinking???

Temp. light is blinking but the temp is running right around 190-195 degrees. Any thoughts? Is coolant just low or what?
 
Old Nov 28, 2008 | 09:17 AM
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oh yea 99 C2...
 
Old Nov 28, 2008 | 09:22 AM
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Low in coolant.
 
Old Nov 28, 2008 | 09:40 AM
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i see alot of coolant issues on this board. Should I really be careful with this and have mechanic look it over or just fill up to normal level and keep driving?
 
Old Nov 28, 2008 | 11:01 AM
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low coolant...I had this happen to me... ran by the dealer and they topped it off for me
 
Old Nov 28, 2008 | 11:32 AM
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new (to you) car?
If 1st time, I would just top it off;
But if it is a recurring problem your coolant reservoir might be cracked...
you might want to replace it.
there is a beautiful walkthrough on renntech in the diy section.
 
Old Nov 28, 2008 | 12:38 PM
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I just bought the car. It was wrecked and it has brand new radiators on it. Just had the mechanic put in new coolant and vaccuum lines to make sure all coolant went in correctly then found small leak when bumper was put back on. Light blinks and temp. goes to about 195-200 tops.
 
Old Nov 28, 2008 | 01:06 PM
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Originally Posted by qcraftsman
I just bought the car. It was wrecked and it has brand new radiators on it. Just had the mechanic put in new coolant and vaccuum lines to make sure all coolant went in correctly then found small leak when bumper was put back on. Light blinks and temp. goes to about 195-200 tops.
Mine would start blinking about once a month, then I would top it off and it would happen again. Finally after about 6 months of this, I could see a coolant leak and had to have the expansion tank replaced. That tank lasted 2 months before it cracked, but it was replaced under warranty. This is one of the few problem areas that these early 996s have.
 
Old Nov 28, 2008 | 01:28 PM
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where do i look for leaks? just under the car? sounds like i need to replace the tank just in case.
 
Old Nov 28, 2008 | 01:36 PM
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Originally Posted by qcraftsman
where do i look for leaks? just under the car? sounds like i need to replace the tank just in case.
It's a very hard leak to detect at first because it usually doesn't leak too bad and what does leak gets burned off by the exhaust. I would just keep an eye on it, becuase most shops won't be able to detect it.
 
Old Nov 28, 2008 | 01:45 PM
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thanks for all the help guys...
 
Old Nov 28, 2008 | 07:46 PM
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This is true most shops will not be able to detect it if they don't know what they are looking for. The proper way to get that leak to show itself is to pressure test the cooling system and pressure test the cap. It is important that you take care of it asap bc It could crack can get worse and cause an overheat condition with out you noticing and burn up the motor. A good indication to see if the expansion tank is old is to look at the color of the plastic itself, is it yellowed? Or is the expansion tank cap blue? This is an old cap and they have updated ones that are black. Overall sounds like you just had the system flushed you should always flush and then take it for a drive and then top it off in the morning when it cools off, these systems tend to (burp). Hope that helps.
 
Old Dec 6, 2008 | 06:56 AM
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Check to make sure you have the latest cap. Also, to help "burp" the system, pull up the metal clip on top of the tank and leave it up while you take it for a drive.
 
Old Dec 6, 2008 | 11:12 AM
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How is the light blinking? If the light is solid and needle pegged to the right, your coolant is too hot. If it is blinking slowly it is either low coolant level or the engine compartment is too hot. Flashing fast is an indication that you have a bad temperature sensor.

A bad coolant level sensor at the bottom of the tank will also cause the light to flash.

Since you just had the coolant changed, be sure that the system is properly bled.
 

Last edited by 1999Porsche911; Dec 6, 2008 at 11:14 AM.
Old Dec 6, 2008 | 01:46 PM
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Originally Posted by david9962000
low in coolant.

+1 ^^
 
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