2005 GXP Overheating
03-17-2017, 08:12 AM
#11
Senior Member
True Car Nut
If it has overheated to the extent that is boiled out the coolant you may be in big trouble. Drastic overheating on a northstar engine will pull the head bolts out of the block. To repair this problem is a major and expensive job. The bolt holes have to be drilled out and threaded inserts installed. The engine/ trans should be dropped out of the car to do this. A mechanic will probably charge $2-3K to do this. You best hope this has not happened. The symptom is that on a long uphill climb all the coolant boils out.
You are responding to an 8 year old post.
07-14-2020, 10:02 AM
#12
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I had that issue too and fixed it!!!
[QUOTE=mjsowajr;1374910]I am looking for anyone with a similar problem that has found a solution. My GXP w a northstar engine is overheating but not all of the time. It happens in cool weather and hot weather. I had the waterpump replaced this winter when a small leak developed. A month or so ago the car began to overheat about once a week after about 30 mins running time at normal temperature 200 degrees. It will spike to 280 and I have to shut it down. It has been happening more frequently and today I was towed in to my dealer who is having a hard time diagnosing the problem. On Monday they replaced the thermostat. Ran fine for 3 days and overheated again. I love this car! I need to know how to fix it! Help from anyone who has had a similar issue would be great Thanks[/QUOTE
What u need to do is clean your system out. Flush it and make sure to clean your purge line and the coolant reservoir also. That dexcool antifreeze is horrid. Get rid of it too. Use yellow as green may cause chemical issues and more sludge n chunk.. I replaced radiator, hoses, thermostat, water pump, pretty much all externals.. good luck to ya
What u need to do is clean your system out. Flush it and make sure to clean your purge line and the coolant reservoir also. That dexcool antifreeze is horrid. Get rid of it too. Use yellow as green may cause chemical issues and more sludge n chunk.. I replaced radiator, hoses, thermostat, water pump, pretty much all externals.. good luck to ya
07-15-2020, 10:51 PM
#13
Senior Member
True Car Nut
What u need to do is clean your system out. Flush it and make sure to clean your purge line and the coolant reservoir also. That dexcool antifreeze is horrid. Get rid of it too. Use yellow as green may cause chemical issues and more sludge n chunk.. I replaced radiator, hoses, thermostat, water pump, pretty much all externals.. good luck to ya
07-20-2020, 11:56 PM
#14
Senior Member
True Car Nut
QUOTE=mjsowajr;1374910]I am looking for anyone with a similar problem that has found a solution. My GXP w a northstar engine is overheating but not all of the time. It happens in cool weather and hot weather. I had the waterpump replaced this winter when a small leak developed. A month or so ago the car began to overheat about once a week after about 30 mins running time at normal temperature 200 degrees. It will spike to 280 and I have to shut it down. It has been happening more frequently and today I was towed in to my dealer who is having a hard time diagnosing the problem. On Monday they replaced the thermostat. Ran fine for 3 days and overheated again. I love this car! I need to know how to fix it! Help from anyone who has had a similar issue would be great Thanks[/QUOTE
What u need to do is clean your system out. Flush it and make sure to clean your purge line and the coolant reservoir also. That dexcool antifreeze is horrid. Get rid of it too. Use yellow as green may cause chemical issues and more sludge n chunk.. I replaced radiator, hoses, thermostat, water pump, pretty much all externals.. good luck to ya
What u need to do is clean your system out. Flush it and make sure to clean your purge line and the coolant reservoir also. That dexcool antifreeze is horrid. Get rid of it too. Use yellow as green may cause chemical issues and more sludge n chunk.. I replaced radiator, hoses, thermostat, water pump, pretty much all externals.. good luck to ya
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Last edited by CathedralCub; 07-21-2020 at 12:00 AM. Reason: Formatting
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