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Old 07-04-2007, 01:59 AM   #1
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Default High temps when driving

I have been showing a high temp when driving around in the New Mexico heat. The car showed a 250-260 temp at one point cruising around with 100 degrees outside. What is the normal temperature for it to reach?

I went to check the radiator fluid level and surprise...no radiator cap. I twisted the overflow reservoir tank lid and it moved a little but couldn't twist that $%##@$ thing off. I could see dexcool in the clear part at the bottom though.

Both electric fans are running.

What'* next? I only have about 20K miles.
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Old 07-04-2007, 09:47 AM   #2
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I would definately take it to the dealer and see whats up. Our gauges dont work accurately, most seem to show 200-210 although the engine comes with a 180 degree thermostat.Mine sits right at 200 all the time. But, the range you are showing is not norm. We have had a few unusually hot days here in PA in the upper 90'* and my GXP never went above 205. Under an extended NOX injection she hit 215 or so. Heat is a real enemy of the all aluminum LD8 and a host of problems involving warped heads, resulting water leaks and the damage that causes, and even popped headbolts. Never take an overheating issue lightly with a Northstar egine.. Mr. Goodwrench reps have told me that they seldom see a Northstar ever run the same after it has been driven in "limp home" mode.
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Old 07-05-2007, 07:10 PM   #3
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yeah take it to a dealer right away. My gxp never went over 200 degress i recall. Did it change as you drove or stick around the same temp?
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Old 07-07-2007, 02:13 AM   #4
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I wonder if the thermostat was stuck. The problem went away and hasn't happened since.
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