disco T REG TD5

hi all can you please help i have put a new thermostat and fan belt on my disco and now it just will not rev when in drive feels like iv got a trailer with 6 cows behind it but does not come up with any folt coads

k77 said:

hi all can you please help i have put a new thermostat and fan belt on my disco and now it just will not rev when in drive feels like iv got a trailer with 6 cows behind it but does not come up with any folt coads

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what happened to it to make you feel you needed a new thermostat?

temp neadle went up to red then back down but evey time it did that it cut the power then was fine

k77 said:

temp neadle went up to red then back down but evey time it did that it cut the power then was fine

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Errr....how many times is "every time"?

The very fact that the needle hit the red the very first time was an indication that all was NOT fine! :doh:

k77 said:

temp neadle went up to red then back down but evey time it did that it cut the power then was fine

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What made you think it was the thermostat? Seeing as it has 2 valves (one for temp and one for suction pressure) it would have had to fail twice. It sounds to me like your problem is that the vehicle is going into limp mode due to overheating or damage caused by overheating.

Early TD5's are prone to head gasket failure due to nylon dowels being used to locate the head. Worse still is the tendancy to crack the head. I would get sniff and compression tests doen if I were you.

Sounds to me like you have an engine rebuild on your hands.