Hello not too long ago i changed auto transmission fluid with dexron III(FL 1, 4TD 2.0 diesel 2006 automatic) and whenever i change gears while car is stationary it jerks very noticably…

I didnt notice this before and i dont remember it, i wish to know if anyone knows what problems may cause this or if its damaged beyond repair to the point that its useless to fix(price more than car which was around 1400€, 1200£)

Im asking because im planning to also tune it the future with that roverron box thing and sensor and also other expenses

If this is normal and doesnt affect car then im happy and dont mind

First I'd double check the fluid level. There is a strict procedure to follow to get the level correct - warm gear box, engine running, cycle through gears, top up until it weeps out of the level plug hole.

I wouldn't bother with a RonBox. Anecdotal eveidence says it knackers your HP fuel pump. I went through three with a RonBox on!

*edit* Just seen that you posted on this thread...

kernowsvenski said:

First I'd double check the fluid level. There is a strict procedure to follow to get the level correct - warm gear box, engine running, cycle through gears, top up until it weeps out of the level plug hole.

I wouldn't bother with a RonBox. Anecdotal eveidence says it knackers your HP fuel pump. I went through three with a RonBox on!

*edit* Just seen that you posted on this thread...

JATCO Automatic Gearbox

It's all ok now. Thanks for asking. :) I've set the auto oil level to the correct level, and it's working ok. Done about 50 miles on it making sure it's all ok. It also restarts ok and drives ok when hot too, which is a good sign. LR part no for oil STC50531 for LRN402 Jatco auto oil 1L Drain...

www.landyzone.co.uk

Click to expand...

You lost three fuelpumps with that ron/roverbox thing??!

Any other ideas to pump up the horsepower? I really do like the extra power

Shabe said:

You lost three fuelpumps with that ron/roverbox thing??!

Any other ideas to pump up the horsepower? I really do like the extra power

Click to expand...

It's not conclusive but @Arctic2 has info on it.

I fitted a RonBox probably around 2014

1. Original (assumed) pump replaced May 2016 at roughly 108k
2. 2016 pump replaced June 2019 at 135k
3. 2019 pump replaced Feb 2022 at 160k. RonBox removed
4. 2019 pump still currently fitted, 185k

Remap is your answer I think.

kernowsvenski said:

It's not conclusive but @Arctic2 has info on it.

I fitted a RonBox probably around 2014

1. Original (assumed) pump replaced May 2016 at roughly 108k
2. 2016 pump replaced June 2019 at 135k
3. 2019 pump replaced Feb 2022 at 160k. RonBox removed
4. 2019 pump still currently fitted, 185k

Remap is your answer I think.

Click to expand...

Will look into it, many thanks