2003 discovery se no heat in cab and over heating
#11
#12
Belt route first, radiator is most likely sludged up good second. Having some water flow thru radiator is possible even with lots of the tubes closed off, DIY flow testing may be problematic without test equipment. Leaks can be from any hose or clamp (in addition to gaskets); some are slightly hidden; if you have coolant loss.
It is more correct for radiator to be cooler (but not cold - that would mean all the tubes are sludged) on passenger side (NAS) as it is a horizontal row radiator. What counts is top to bottom on the fins in the same vertical line. More than 10F and you may have some blockage.
Thermostat can be sludged up with trash, the little holes in top leg must be clear for it to work properly.
It is more correct for radiator to be cooler (but not cold - that would mean all the tubes are sludged) on passenger side (NAS) as it is a horizontal row radiator. What counts is top to bottom on the fins in the same vertical line. More than 10F and you may have some blockage.
Thermostat can be sludged up with trash, the little holes in top leg must be clear for it to work properly.
Last edited by Savannah Buzz; 01-10-2013 at 04:10 PM.
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