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Hi I have a strange problem on my 2001 6 speed C5 !
she overheath a constant speed...I explain
over 100mph at the speed regulator on the highway she overheath degree by degree slowly until near 260°
if I put 100 mph in 5 gear she overheath 3x time faster
on traffic jam or town or moutain attack I have no problem
All the cooling comes from under the car, are your air defectors still in place ??? crap in the radiator and condenser fins, best way to clean is pull the radiator and flush with water !!!!!!
All the cooling comes from under the car, are your air defectors still in place ??? crap in the radiator and condenser fins, best way to clean is pull the radiator and flush with water !!!!!!
yes my car is low but air dam still here and radiator is clean no dust I have a C5R front lip I hope that's not the lip who block the air flow
Get under the front and look up between the back of the a/c condensor and the front of the radiator. There's a deep V going up to the top of the radiator, take a look and see what's up in there, I've seen plastic bags, cups, grass, and other debris stuck in there.
Did this start before or after you installed the C5R Lip???
This. Sounds related. With proper airflow the car should be easily cooling at speed. Your situation sounds similar to a car I had awhile back that did the same thanks to a plastic shopping back that got sucked up against the radiator.
However! 100 mph in 5th gear is somewhere around 3500 RPM - at that sustained RPM, given the airflow of 100 mph, I imagine the engine shouldn't overheat in normal conditions. I imagine even with the splitter, it should be okay if your rad is clean. Other people can confirm.
here is some news I find the problem thanks 65GGvert !!
I pull up the radiator top protection and this is what I find !!
the A/C rad was in different parts completly destroy and it block the airflow with dirt and a dead rest of bird inside !!
Never I told you so....BUT 90% of high temps are from a blocked/very dirty radiators. The other 10% is the water pump, hoses, tstat, pressure cap, old/bad coolant etc.
P. S. The entire front end is a vacuum....I've found plastic bags (Walmart), a t-shirt and tons of grass.
Last edited by runner140*; Aug 18, 2016 at 07:15 AM.
Reason: add
Never I told you so....BUT 90% of high temps are from a blocked/very dirty radiators. The other 10% is the water pump, hoses, tstat, pressure cap, old/bad coolant etc.
P. S. The entire front end is a vacuum....I've found plastic bags (Walmart), a t-shirt and tons of grass.
I run a 180 stat and the tune has my fans come on earlier, my normal temp runs 190, when I ran it up to 120 for a while it went to 196 !!!! (for what that's worth) stuck in traffic highest has been 196 !!!
I run a 180 stat and the tune has my fans come on earlier, my normal temp runs 190, when I ran it up to 120 for a while it went to 196 !!!! (for what that's worth) stuck in traffic highest has been 196 !!!
I run 160 stat and before the 2 weeks of german autobahn my car never pass the 220 even in heavy use but on the track oil have reach 130°celsius and water around 125°celsius so too much...
overheating strange ??
