Dan> Normal driving does not cause it to overheat although the Dan> temperature needle does hover around the hot side of the Dan> gauge. However if it is stationary and idling for any amount Dan> of time it overheats.
Dan> I have checked and the fan is turning when the engine is at Dan> idle. In addition when I rev the engine the temp needle comes Dan> back down to a normal temperature. The temperature needle Dan> seems to move around quite quickly compared to other cars I Dan> have owned too.
Mine is fairly steady in the middle of the range.
Dan> Could this be the water pump on its way out? or the Dan> temperature sensor?
I guess so - bear in mind that the engine ECU has a different coolant temp. sensor and the only way to reliably find out what it's reading is to interrgate the GEMS ECU with a diagnostic tool - though you can do some basic resistance/voltage checks with a multimeter.
Dan> I was quite surprised when it did overheat that the computer Dan> thing did not bleep at me as well (it will bleep if the Dan> washer bottle low but not if the engine is about to die from Dan> overheating?).
You expect consistency in the design from Land Rover? Come on! :-)
This might sounds like a silly question: is it actually overheating (clouds of steam, loss of coolant, all the stuff)? Or just the needling jumping around?
I ask this question because the relationship between actual coolant temp., coolant temp. as seen by the GEMS Engine Management system, coolant temp. as seen by the BeCM, and coolant temp displayed to the driver is fairly complex.
If it is really overheating, then suspect either rad blockage (water or air flow), or the viscous coupling on the fan which could be wearing out (I have a new one in the garage to fit to mine). If it's just yanking your tail, let me know, and I'll dig out the ETM and tell you where to shove the pointy bits of your multimeter. :-) I've not heard anything failing in this area, but that doesn't prove anything.p
Going back to your original post, it sounds like it really is overheating. There is some information on the fan VC on my site at
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AndyC
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+-------------------------------------------------------------------------+ |Andy Cunningham aka AndyC the WB | andy -at- cunningham.me.uk |
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- Everything you wanted to know || about the P38A Range Rover but were afraid to ask. |+-------------------------------------------------------------------------+"The world has gone crazy: The best rapper is a white guy, the bestgolfer is a black guy, France is accusing the US of arrogance, andGermany doesn't want to go to war." -- Anon