2013 LR4 5.0 coolant low but no leaks

ezzzzzzz

Well-known member
Apr 22, 2010
579
2
SE Va
Wife got the low coolant warning yesterday. The bottle is low. There is no sign of leakage anywhere including the crossover pipe under the intake manifold. Any suggestions?
 

Swedjen2

Well-known member
Sep 12, 2018
188
20
California
Go on Amazon and get a decent UV flashlight and UV liquid detector fluid, make sure it's for the coolant you are running - there are different ones for green and orange coolant, oil, etc.
I've had a slow leak for months and found my coolant leak after two different shops said they "found" the leak.
It was the water pump. A drip from the weep hole that was very hard to see until I used the UV light. The hole and everything below it lit up like a Christmas tree.
It's on a D2. Your results may vary.