Td5 Owners

My 99TD5 Disco had this problem and it was a pain. I noticed that my 03 TD5 Disco does not try so forcefully to maintain idle revs, whereas the 99 tried too hard.
It sounds as though your vehicle is an early one and the ECU is still standard so why not get it chipped with a better fuel map and get the advantage of a more powerful TD5 at the same time?

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Originally Posted by Graeme

My 99TD5 Disco had this problem and it was a pain. I noticed that my 03 TD5 Disco does not try so forcefully to maintain idle revs, whereas the 99 tried too hard.
It sounds as though your vehicle is an early one and the ECU is still standard so why not get it chipped with a better fuel map and get the advantage of a more powerful TD5 at the same time?

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I was talking to Justin Cooper as he services my Defender and he said one of his mates chipped a Defender with this problem and it just made the jerkyness worse.

So do other Td5 owners find their Td5's Driveable over rough ground in high range ?

High range not realy that much of an issue. High range 1st going over a series of speed bumps in a car park it can be a bit jerky.

Low range I could jump up and down on the peddle and it will stay smooth. Probably not what you want to hear though :(

Good luck

Before I got my D2 I was a passenger in an early D2 with a manual box, it was very jerky in low range going over rocks in a dry river bed in SA, the driver said that she did not have her foot on the pedal and it was the car doing that.

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Originally Posted by Defender=1st

So do other Td5 owners find their Td5's Driveable over rough ground in high range ?

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Try driving in the next gear up. I found that 1st high is OK at very low speeds, If slightly quicker would not make up its mind with the fueling/computer and was as described. Was fine in next gear up. You will learn to drive it differently and it should be OK.
Autos are great as they will change up before you get the jerkyness.

Big red goes great cross country regardless of range.

But I use the foot in the sidewall trick to help minimise foot jumps.

It's not a problem on mine. I do think it's a tad more touchy after the ecu re-map though.

Thanks Everyone. I will try to test drive a Td5 as soon as i find one in a dealer

just a thought..

if you hit an obstacle square on as opposed to angling the wheels up your going to get it and it doesnt really matter what you drive. Some vehicles get it worse than others (generally older vehicles with more primative management systems)