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240 temp, help

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Old Oct 4, 2024 | 05:32 PM
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240 temp, help
Fan kicked on around 210 degrees… only had temps that high when I had a hole in the aux radiator. Check all rads and no leaks. Any suggestions on what I should do?

Temp at 240
Attached Thumbnails 240 temp, help-img_1133.jpeg  
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Old Oct 4, 2024 | 09:17 PM
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Do these have an a aux cooling pump? I’d check that or thermostat. Any way for you to get a scanner to check, activate? How many miles on the car?
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Old Oct 5, 2024 | 07:07 AM
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Originally Posted by Blxckc63s
Fan kicked on around 210 degrees… only had temps that high when I had a hole in the aux radiator. Check all rads and no leaks. Any suggestions on what I should do?

Temp at 240
Check the front aux coolers again for damage and leaks. Also check your coolant levels in both reservoirs. If they're very low then it's sure to be a leak if the coolers.

Can you smell coolant from the front bumper after driving with aircon on?
Last edited by Jimmy_c63s; Oct 5, 2024 at 07:09 AM.
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Old Oct 5, 2024 | 11:39 AM
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Originally Posted by Baltistyle
Do these have an a aux cooling pump? I’d check that or thermostat. Any way for you to get a scanner to check, activate? How many miles on the car?
nothing on the scanner, I changed pump on the driver side along with the rad about a year ago. 70k miles
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Old Oct 5, 2024 | 11:42 AM
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Originally Posted by Jimmy_c63s
Check the front aux coolers again for damage and leaks. Also check your coolant levels in both reservoirs. If they're very low then it's sure to be a leak if the coolers.

Can you smell coolant from the front bumper after driving with aircon on?

I checked and checked and checked… no leaks from the coolers. Gonna fill up reservoirs again to see if I can find a trace of a leak. I don’t smell any coolant, aircon still blows cool air.
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Old Oct 5, 2024 | 12:09 PM
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Originally Posted by Blxckc63s
Fan kicked on around 210 degrees… only had temps that high when I had a hole in the aux radiator. Check all rads and no leaks. Any suggestions on what I should do?
https://cimg2.ibsrv.net/gimg/www.mbw...21e585e6c.jpeg
Temp at 240
Could it be a bad sensor, do you want to try scanning if there are codes present?
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Old Oct 5, 2024 | 01:07 PM
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Originally Posted by W205C43PFL
Could it be a bad sensor, do you want to try scanning if there are codes present?
No codes present
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Old Oct 5, 2024 | 03:50 PM
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Originally Posted by Blxckc63s
No codes present
I see, never mind then.
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That's the transmission temperature, so you might have an issue with the oil circuit for the transmission fluid. Check for leaks in that circuit as that caused my transmission temp to get high once before a few years back and a leak was found. Back to normal after getting that fixed.
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