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[alec mccutcheon]

Hi,I just bought a 1999 'T' reg GLS 2.5 Turbo deisel autoon Sunday. The car drove great on the test drive and all seemed OK, but when I was driving it home I noticed:
1) the temeperature guage did not move up very high, and the heater seemed slow to warm up
2) the red light on the temperature guage came on
3) After a few miles, the car was very low on power (I stuggled to keep up to 30mph). It does seem tobe losing water but I can't see wherre (no waterin the oil by the looksof things)
4) When I stopped the car was OK again for a bit then lostpower.

It is fine for a couple of miles when driven from cold,its when its warmed up the problems start.

Took it to a local garage yesterday and they said they couldn't diagnose the problem, thought it might be a head hasket but not sure.

Any suggestions and ideas most gratefully received! I think I have just bought a lemon!

[Kevin Wood]

Is the coolant pressurising or boiling over? Are the radiator hoses getting hot?

I believe this engine has been known to shed the impellers from the water pump, and the resultant overheating can cause a cracked head and coolant pressurisation. So, first job is to check the water pump and thermostat, I'd say. If the coolant isn't circulating properly it could be overheating internally without any indication on the display.

Kevin

[alec mccutcheon]

Thanks for your quick reply Kevin much appreciated! The car doesn't seem to overheat (the gtemerature gauge gives a constantly low reading), although one of the top hoses (the one on the nearside the car) did seem warm and quite soft.
Will get these things checked first.
Cheers
Alec

[Kevin Wood]

Oh, and welcome to the forum, by the way.  

There are a few members who are much more familiar with this engine than I who will no doubt be along soon to offer some more advice.

The reason I doubted the temperature display is that depending on where the coolant temperature sensor is located (and I don't know on this engine) there may not be adequate circulation of coolant over it for it to reflect the true coolant temperature. Given that you've mentioned the heater is a bit lazy to get going as well, I think this is a possibility.

Definately check the water pump and thermostat, and while you've got it apart you might as well give the cooling system a flush in case the radiator or heater are silted up.

Kevin