Freelander TD4 - Problems at Junctions
Discussion
Well the wife has lived with her 2005 TD4 Sport Premium now for just over 12 months and complained it was thirsty and kept stalling at junctions. (although she does love it dearly)
I never really realised how bad this was until we took it up scotland a couple of weeks ago where it did 26mpg on way up and has exhibited a total absence of torque and hesitates dangerously at junctions (often stalling).
We have had it back to dealers 8+ times and whilst they are excellent, they cannot find a fault with it.
It would seem the Land Rover have gilded the lilly a little too much on the emission figures and are running dangerously close (well past) the danger point to acheive low CO2 figures at the expense of performance. I say this as I believe they are recirculating too much of the exhaust gasses, having the net result of killing the performance and filling your chanbers and inlet ductwork with tar !
We have freinds with an 02 TD4 (which runs a less envin friendly ECU map) and they can get nearly 50mpg to the gallon and it would pull you up a house side !
Others experiences and performance views more than welcome !
I never really realised how bad this was until we took it up scotland a couple of weeks ago where it did 26mpg on way up and has exhibited a total absence of torque and hesitates dangerously at junctions (often stalling).
We have had it back to dealers 8+ times and whilst they are excellent, they cannot find a fault with it.
It would seem the Land Rover have gilded the lilly a little too much on the emission figures and are running dangerously close (well past) the danger point to acheive low CO2 figures at the expense of performance. I say this as I believe they are recirculating too much of the exhaust gasses, having the net result of killing the performance and filling your chanbers and inlet ductwork with tar !
We have freinds with an 02 TD4 (which runs a less envin friendly ECU map) and they can get nearly 50mpg to the gallon and it would pull you up a house side !
Others experiences and performance views more than welcome !
Get the injectors checked out as this is a fairly common problem that causes similar symptoms.
Also using an earlier diagnostic CD in T4 diagnostic PC and 'forcing' an engine management download would give you an earlier map but not recommended as it may bring up other problems elsewhere that the later discs where designed to iron out. (also i doubt your local main dealer would do this anyway).
Even with the current software the Td4 shouldnt be stalling at junctions (although i agree they seem to have less umph than they used to).
Steve
Also using an earlier diagnostic CD in T4 diagnostic PC and 'forcing' an engine management download would give you an earlier map but not recommended as it may bring up other problems elsewhere that the later discs where designed to iron out. (also i doubt your local main dealer would do this anyway).
Even with the current software the Td4 shouldnt be stalling at junctions (although i agree they seem to have less umph than they used to).
Steve
Edited by skey on Wednesday 21st June 23:55
Thanks inital comments guys, it has done this from new but has become increasingly worse as the soot has mixed with any available moisture and produced what I can only describe as 'tar' which has built up in the inlet manifold.
It is quite easy to see how the performance massivly changes without the EGR (Exhaust gas recirculation) by just pulling off and blocking the vacuum pipe which opens the valve. Whilst it does not really change the +2k power or torque, it has a massive effect on ours in the sub 2k rev range, totally eliminating the lack of low down torque and making it far more safer, drivable and practical at low speeds.
I watched the wife tease it off the drive this morning with no throttle, rather than the handful of revvs she usually has to give it.
It is quite easy to see how the performance massivly changes without the EGR (Exhaust gas recirculation) by just pulling off and blocking the vacuum pipe which opens the valve. Whilst it does not really change the +2k power or torque, it has a massive effect on ours in the sub 2k rev range, totally eliminating the lack of low down torque and making it far more safer, drivable and practical at low speeds.
I watched the wife tease it off the drive this morning with no throttle, rather than the handful of revvs she usually has to give it.
Edited by jifen on Thursday 22 June 18:13
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