here's a puzzler for you on a td4

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Judethebold

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I'm new here being a first time owner of an 05 td4. I'm loving it but there's a problem. when i got the freelander it was a bit sluggish at low speed, 5-10mph after reading on here i thought it might be the maf sensor and wasn't that concerned. I left it in with my mechanic for a service, he changed the oil and the filters and fitted new front brake pads and replaced a bulb. When he returned it it was more sluggish and now at higher speed too. Also since then occassionally it blew out white smoke on starting and a few times did not start first time. I took it into a landrover specialist and they put it on the computer and it doesn't appear to be the maf sensor, however the guy drove it, agreed that it was sluggish and suspected a turbo fault. I have it booked in for exploratory later this month but wondered if this is something you guys might have seen before and how might it be possible that it worsened after servicing?
 
thanks Michael, is that something i can check or replace myself. also where is it LOL? can't find a ref in my haynes.
 
Judethebold said:
thanks Michael, is that something i can check or replace myself. also where is it LOL? can't find a ref in my haynes.
Click to expand...

easy to rule it out, just disconnect it and if it drives better without that's the fault, if it doesn't then it's not.
 
Have found a couple of pics with the airfilter cover removed. The maf is located on the left hand side (just under the yellow oil filler cap). Good luck.

Sorry, on the micropictures it seemed as if the airfilter cover was off but it isn't sorry. Forget this post. (But the maf is still underneath the oilfiller cap, if my memory is correct it's the only plug in that area).
 

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If it isnt the MAF then take off the EGR and have a good look inside and clean out if neccassary. Also, there was an update on for the ECU on how the EGR was controlled.... maybe try and find out of that was done during the years it was serviced at a LR garage (assuming it was)

I had the same problem and the MAF and the EGR seemed to contribute to it. The car only had 12k on it when I bought it but disconnecting the MAF definatly made an improvement so I had it replaced and now on 60k it seems fine (maybe cos it does lots of motorway work?). Also, replaced the EGR with a bypass kit from ebay.

So, although not exactly a rocket ship, there was a definate improvement from when I first bought the FL.

Steve
 
Thanks for all that, i've just disconected the MAF and it does seem to have improved, especially in 1st and second gear, so i'll replace it. i presume it's ok to leave it disconnected till i get a new one? i've a long run to do tomorrow so that will be a good test at higher speeds.
 
after a quote of £269 for a bosch maf from my nearest rover dealer, i went to roverron and got a pierberg +mf75 for £125.75 inc p+p. sorted!
 
Judethebold said:
after a quote of £269 for a bosch maf from my nearest rover dealer, i went to roverron and got a pierberg +mf75 for £125.75 inc p+p. sorted!
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:doh: You should have gone for the pierburgh and a synergy 2 module, a bit more cash but a far better result.

not too late to change the order.:D
 
with either of the synergy models what are the advantages? And if this isn't a daft question, if performance can be so enhanced and an obvious fault fixed why does landrover not fit something like the synergy as standard, and why do bosch continue to make a part that is so unsatisfactory?
 
Because it is Landrover, and because Landrover have never accepted that there are any design faults with the Freelander.
 
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I dont think its a design fault as such. Most manufacturers tune to a base level so that the vehicle will work over a range of areas. IIRC tuning to air quality at sea level is different than in a mountain range. Think of the amount of tuning that Evo's and Impreza's are given after manufacture, and thats a car made for speed.

As for Bosch.... has anyone told them they are crap LOL
 
i dint explain myself properly - wot i meant was ....... As Landrover havent accepted any design faults, what chance is there of acknowledging any other faults? If they fitted a "synergy", it would imply acceptance of a possibly problem. As it is - its the customers problem, not theirs.
 
Judethebold said:
with either of the synergy models what are the advantages? And if this isn't a daft question, if performance can be so enhanced and an obvious fault fixed why does landrover not fit something like the synergy as standard, and why do bosch continue to make a part that is so unsatisfactory?
Click to expand...

The Synergy is widely used by Freelanderers, it alters some of the signal voltages to and from the ECU to improve the torque of the engine and makes it a far better drive.
Any vehicle manufacturer has to comply with emissions restrictions and conditions in various markets and as a result optimum performance and even economy can be compromised. It's not a LR thing, tuning and remapping to improve on mass production standards is common across the board.
 
Chaser's spot on. Manufacturers have to look at a wide range of issues like emissions/legislation, cater for the worst possible fuel quality in their potential markets, smoothness of the engine & even daft things like making sure it isn't too fierce off the mark for Joe average, when he lets out his clutch. The synergy unit makes the injectors work a little bit harder thereby improving performance & in some cases economy due to higher pressured injectors giving a better spray & fuel atomisation which both the injectors & UK diesel fuel are more than capable of providing. My Td4 auto lost a little smoothness of gear changing (a little more jerky) with the synergy fitted, but the difference wasn't massive. Also emmision wise, although the manufacturers have to worry about meeting many different levels like particulates, Nox, CO2 etc. the UK MOT only tests for particulates which my car & many others have passed no problems with the synergy fitted.
 
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