TD5 Performance Problem??

[lizard322]

Hi folks. Looking for some help if anyone has experience with this type of problem.

Problem - My recently purchased Series II TD5 auto with 90,000 kms won't pull my small van (1.2T wind-up). By this I mean there is not sufficient power to maintain open road speed of 95-100 in top gear when pulling my van. And I'm referring to good flat roads, no gradients, no headwind.

Observations - Based on everything I've read through LR forums and every person/mechanic I've spoken to who drives a TD5, any TD5 in average condition should pull this load while standing on it's ear!

Problem 2 - How to identify the issue causing the underperformance and rectify it?

So Far - My TD5 by all appearances runs fine. It starts, idles and otherwise runs well (until my van goes on the back). There is no smoke or signs of clutch slippage or of anything else amiss. It just won't pull! A transmission specialist has checked the auto trans and believes it is fine. I spent some dollars with a LR specialist for a good go over and he says he could not find any underlying issue. (This guy plugged his computer analyser in and changed the air and fuel filters that may or may not have needed changing and sent me on my way. Is this satisfactory?)

I suspect that a good diesel tech with a good working knowledge and experience of TD5's is the way to go. However I am in south west Vic and I can't go driving all over the state/country to "show" my car to different doctors for perhaps no result. I realise that the doctor generally needs to see the patient but I need a practitioner who is prepared to listen and maybe can identify possibly causes via a phone consultation and then go from there.

Can anyone assist?

Chris

[Shaker]

I had exactly the same problem towing my camper trailer, I replaced the intercooler hoses with silicone hoses from BAS, that fixed the problem, it is now a different vehicle.
I also fitted a ECR removal kit, which was the icing on the cake.

Good luck!

[Mulgo]

Do you hear the turbo working? Could be the westgate not opening as it should.

[discowhite]

I had exactly the same problem towing my camper trailer, I replaced the intercooler hoses with silicone hoses from BAS, that fixed the problem, it is now a different vehicle.
I also fitted a ECR removal kit, which was the icing on the cake.

Good luck!


EGR;)

cheers phil

[Gold_TD5]

Do you hear the turbo working? Could be the westgate not opening as it should.

I never hear my turbo and it runs fine, pulls real hard.
Mind you I feel it kick in at 1500rpm, bit flat before that.
Silicone hoses from BAS, EGR removed and the ECU upgraded.

[Shaker]

EGR;)

cheers phil


Sorry ... was a typo!

[Redback]

As well as what has been mentioned, I'd also check your MAF sensor and AAP sensor and give them a good spray with electrical contact cleaner, if your not too sure have a mechanic check these, the MAF flow rate can be checked by computer analyser.

Where are you, maybe one of our members is close and could look at it with a Nanocom diagnostic device, I have one, as do many others on here, I also have spare Intercooler hoses and wastegate modulator if you want to try them to iliminate these as the problem.

I tow a 1.4t camper with my TD5, mine will sit on 110 easily.

Baz.

[lizard322]

Thanks to all those who posted information and suggestions because it was through your ideas that the problem was ultimately solved.

And looking back through the posts there were some very accurate suggestions. The problem was that the turbo wasn't operating - at all! A missing surclip was the culprit. The surclip attached an easily visible connection on top the turbo from the accentuator. For some reason this was missed by Hunter Cuthill in Geelong, including not being picked up by their computer analysis. Now I'm not sure how a LR specialist (or any mechanic or proper computer analysis) can fail to detect that there is no turbo operating on a turbo diesel vehicle, but there you go. I left there with the same lack of power as when I arrived. I got some experience and they got some money.

Anyway the next mechanic that opened the bonnet began by doing a rudimentary check of the turbo gear and saw the missing connection in a minute and a half!! Happy days!! One surclip and 5 minutes later, and I got to drive a different vehicle! A powerful TD5 that easily pulls my van, as it should! The moral of the story is find someone who knows what they are doing.

Thanks again to all contributors.

Cheers

[Mulgo]

Thanks to all those who posted information and suggestions because it was through your ideas that the problem was ultimately solved.

And looking back through the posts there were some very accurate suggestions. The problem was that the turbo wasn't operating - at all! A missing surclip was the culprit. The surclip attached an easily visible connection on top the turbo from the accentuator. For some reason this was missed by Hunter Cuthill in Geelong, including not being picked up by their computer analysis. Now I'm not sure how a LR specialist (or any mechanic or proper computer analysis) can fail to detect that there is no turbo operating on a turbo diesel vehicle, but there you go. I left there with the same lack of power as when I arrived. I got some experience and they got some money.

Anyway the next mechanic that opened the bonnet began by doing a rudimentary check of the turbo gear and saw the missing connection in a minute and a half!! Happy days!! One surclip and 5 minutes later, and I got to drive a different vehicle! A powerful TD5 that easily pulls my van, as it should! The moral of the story is find someone who knows what they are doing.

Thanks again to all contributors.

Cheers


Exactly this happened after about 80'000 to both my 110 td5 and my 130 td5. Hence I asked you the question if you could hear the turbo.

Since then I always carry a spare surclip! Probably the cheapest spare part.

[Rudolf]

Lucky Sods!
For having powerfull TD5's. In South Africa the engine was maped by Land Rover as the "Africa map". You folks got the "Rest of World" map.
To get this map you either gotta have the programable ECU or loads of cash. We have to cheat the ECU just to get to 1.2Bar boost and not to over boost.(I was told that).
But my average fuel consumtion is 10Km/l:(

[Captain_Rightfoot]

Lucky Sods!
For having powerfull TD5's. In South Africa the engine was maped by Land Rover as the "Africa map". You folks got the "Rest of World" map.
To get this map you either gotta have the programable ECU or loads of cash. We have to cheat the ECU just to get to 1.2Bar boost and not to over boost.(I was told that).
But my average fuel consumtion is 10Km/l:(

Mate here in aus they only have 1.1 bar boost. :o It's likely something else in the mapping. There is a forum member here that will upgrade your ecu for you for not too much money (not sure on the exchange rate) if it's a flashable job.

Mine has that upgrade, the exhaust and now EGR removed and it is a rocket ship :eek: :D

[Tombie]

Lucky Sods!
For having powerfull TD5's. In South Africa the engine was maped by Land Rover as the "Africa map". You folks got the "Rest of World" map.
To get this map you either gotta have the programable ECU or loads of cash. We have to cheat the ECU just to get to 1.2Bar boost and not to over boost.(I was told that).
But my average fuel consumtion is 10Km/l:(

In AU we dont have ROW map, we have the same EU mapping.

Get a Nanocom and you'll be able to remap...

[Blknight.aus]

the bloke you want to talk to posted between me and the guy with the rocket ship.

I did a review on his work on my ECU and in my normal flamboyant style endevoured tried to exaggerate how good it was. I failed
http://www.aulro.com/afvb/general-chat/50507-proton-energy-pills.html