How hot is too hot?
#21
#22
To close out this thread. I ended up replacing the radiator and it only slightly helped running hot, still was seeing 217deg in idling, though an improvement from 224deg it was not good enough. I took the old radiator apart to see if it was full of dex-cool sludge and it had some scale deposits but, 117k miles of dex-cool has not sludged up the radiator in the least. I did fix the running hot and it was my electric fan, I had previously replaced it with an aftermarket unit and it did not move enough air so, I followed a thread on here about replacing just the motor with a equal to factory size and reusing the factory blades. Yesterday in stop and go traffic and idling at a drive-thru with it 101 deg out the ultra-guage only got up to 197deg. Good enough for me.
#23
#24
Highway and rural road driving runs from 186-194deg. This is the aftermarket fan I used and the associated write-up I did https://landroverforums.com/forum/di...lacment-48525/
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bcolins
Discovery II
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08-31-2008 07:51 PM