996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Radiator problems

Old Jul 10, 2008 | 08:43 AM
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Radiator problems

Since I refilled the coolant with approx 2.5Litres of coolant after I got a Low Coolant Level warning, I check my coolant level every weekend after I run the car when the engine is cold. I have to refill approx 200mls every week (when the engine is cold). I got a pressure test on the system and there seems to be no problems. I now notice small amounts of coolant near both front tires on the ground.

Is there an overflow at these points? Am i putting too much coolant in when the engine is cold? Can there be a problem with the thermostat?
 
Old Jul 10, 2008 | 09:09 AM
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Check the cap and see what the part number ends in
 
Old Jul 10, 2008 | 10:27 AM
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Originally Posted by 4G64T
Since I refilled the coolant with approx 2.5Litres of coolant after I got a Low Coolant Level warning, I check my coolant level every weekend after I run the car when the engine is cold. I have to refill approx 200mls every week (when the engine is cold). I got a pressure test on the system and there seems to be no problems. I now notice small amounts of coolant near both front tires on the ground.

Is there an overflow at these points? Am i putting too much coolant in when the engine is cold? Can there be a problem with the thermostat?
It's a sure bet that the front rads want changing. There are 3 rads on the 996turbo.. Centre and then one either side.. I would replace all 3 at once as well.. Costly but its a common fault..
 
Old Jul 10, 2008 | 10:57 AM
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Careful. In my case, after the quarter sized puddles came the entire radiator separating at about 90 mph.
 
Old Jul 10, 2008 | 11:07 AM
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Whats the cost of the 3 radiators?
 
Old Jul 10, 2008 | 11:49 AM
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Originally Posted by 4G64T
Whats the cost of the 3 radiators?
Hi.. We have seen this before......Most times it is the head gasket leaking under boost! I will pm you! Tim
 
Old Jul 10, 2008 | 12:07 PM
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Originally Posted by Staff@RPM
Hi.. We have seen this before......Most times it is the head gasket leaking under boost! I will pm you! Tim
Please tell me I'm missing something here... OK Reading the first post it mentions water near both front wheels... Yep front wheels... Now as I understand Porsche never put an engine in the front did they??

Front Rads for sure mate... Get them check and replaced asap before they go pop...
 
Old Jul 10, 2008 | 01:50 PM
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[quote=Westy;1943393]Please tell me I'm missing something here... OK Reading the first post it mentions water near both front wheels... Yep front wheels... Now as I understand Porsche never put an engine in the front did they??

Hi... Have to love the humor....We have notice that the 996 TT will let combustion gases past the head gasket and not let the water in . I would check if you have anything floating in or on the bottom of the tank.... I hope I am wrong! 1.1/2 bar and a little bad gas ( lower then 94/3) and you run a good chance of getting some detonation and that head gasket is going to pay the price! Tim
 
Old Jul 10, 2008 | 02:20 PM
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Originally Posted by Westy
Now as I understand Porsche never put an engine in the front did they??
http://en.wikipedia.org/wiki/Porsche_924
 
Old Jul 10, 2008 | 06:10 PM
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Tim, nothing floating in the tank and just got the oil changed and no mention of any water in the oil. Also the leakage is found close to the front tires.
 
Old Jul 10, 2008 | 08:14 PM
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Originally Posted by 4G64T
Tim, nothing floating in the tank and just got the oil changed and no mention of any water in the oil. Also the leakage is found close to the front tires.
Hi, I have lost one hose with a tee in it.. I will PM you the price of the radiators...Tim
 
Old Jul 11, 2008 | 12:26 AM
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Originally Posted by NineNineSixTT


But that's not a Porsche, it is an Audi!
j/k


Here are some other front engined Porsche cars for the record.

http://en.wikipedia.org/wiki/Porsche_928 My favourite in GTS
http://en.wikipedia.org/wiki/Porsche_944
http://en.wikipedia.org/wiki/Porsche_968 My other favourite in Turbo RS.

Hijack out!
 
Old Jul 11, 2008 | 12:36 AM
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I just bought one...

Sunset Imports has the side radiators for 370 each.
 
Old Jul 11, 2008 | 03:57 AM
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I had the same and got them changed before a driving holiday covering 2,500 miles. They weren't dripping, but were producing that horrible 'radiator' smell when we got out of the car. Also, I was given the option to only replace 2 as the middle one looked OK, but changed all 3 given the luck I've had of late.

It's a common fault apparantly caused by all the crud collecting in the front and slowly corroding the radiators, and I was told need changing every 5-6 years depending on useage and conditions etc.
 
Old Jul 17, 2008 | 11:38 PM
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Finally found out that the left and right were both leaking. The middle was OK but decided to replace all three as well as the coolant hoses in the engine. Better to be safe than sorry.
 
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