Turbo "flutter" & loss of power (from a newbie)

Engine, Exhaust, Drivetrain, ECU Faults and Fixes
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OverLord
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Turbo "flutter" & loss of power (from a newbie)

Post by OverLord » Thu Sep 26, 2019 2:07 pm

Hi All

Been sneaking around this forum for a while now just reading and learning new things.

I would really appreciate all/ any help with my issue. I will try and keep it as short and factual as possible.

Bought a 2015 Discovery Sport 2.2 Auto beginning this year from LR dealer with 2 year warrantee. (love the car, had a Nissan Navara before).
After a couple of months I noticed what I first thought was wheelspin, turns out its the turbo wastegate that opens when it shouldn't.
My local dealer has now replaced the complete turbo but it has not fixed the fault. The car looses power for a split second when this happens.
When I took it back to the dealer they had it for about 3 weeks and got LR technical involved. They came back with "it's a vehicle characteristic". This to me is complete and utter *@?%$-locks.

I have tried to upload a video with the sound on it but cant seem to get it right. There are however a few uploads online with the exact same noise, apparently it is called "chuffing".

Any help, pointing in the right direction or advice on how to deal with JLR CS would be greatly appreciated.

Louis.


OverLord
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Re: Turbo "flutter" & loss of power (from a newbie)

Post by OverLord » Wed Dec 04, 2019 2:25 pm

Update: (if anyone is interested),

I have now noticed that, believe it or not, as soon as the ambient temperature drops to below 13 deg c the flutter and stutter disappears. I'm starting to think there might be something wrong with the intercooler.

Any ideas people?, please!


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Re: Turbo "flutter" & loss of power (from a newbie)

Post by DiscoSportDave » Wed Dec 04, 2019 3:26 pm

Can't help you out sorry, but a little more info now might help the diagnosis.

Is there any help from other forums where this engine was utilised ?

Any idea whether its had a remap ?


Does the same issue happen irrespective of coolant temperature ?

Might be worth a chat with just some well known turbo overhaul company - they might be able to give you some clues ?
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Re: Turbo "flutter" & loss of power (from a newbie)

Post by DiscoSportDave » Wed Dec 04, 2019 3:32 pm

If you google turbo chuffing there are uite a few results pointing at the Evoque forums, might be worth a trawl through some of those threads, ?

this one possibly similar to your situation for example..

https://www.evoqueownersclub.co.uk/threads/sounds-like-wheel-spinning.7704/


and this one..

https://www.evoqueownersclub.co.uk/threads/noises-and-holding-back.5652/


There are some video/sound clips on the latter thread link
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Re: Turbo "flutter" & loss of power (from a newbie)

Post by OverLord » Thu Dec 05, 2019 2:02 pm

DiscoSportDave wrote:
Wed Dec 04, 2019 3:26 pm
Can't help you out sorry, but a little more info now might help the diagnosis.

Is there any help from other forums where this engine was utilised ?

Any idea whether its had a remap ?


Does the same issue happen irrespective of coolant temperature ?

Might be worth a chat with just some well known turbo overhaul company - they might be able to give you some clues ?

Hi DiscoDave

Thanks for the reply, Most of the other posts I found talks about Haldex units and replacing the turbo. I doubt its the Haldex and the turbo has already been replaced.

Re coolant temp I can safely say the engine needs to be hot, I drive approx. 20 miles to work in the mornings and it never did it then, only about halfway through the day and (as mentioned) now noticed it only happens when outside temp is 13 deg c of above.

I have tried asking local turbo specialists but they are only interested in selling me a new turbo.


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Re: Turbo "flutter" & loss of power (from a newbie)

Post by OverLord » Thu Dec 05, 2019 2:08 pm

DiscoSportDave wrote:
Wed Dec 04, 2019 3:32 pm
If you google turbo chuffing there are uite a few results pointing at the Evoque forums, might be worth a trawl through some of those threads, ?

this one possibly similar to your situation for example..

https://www.evoqueownersclub.co.uk/threads/sounds-like-wheel-spinning.7704/


and this one..

https://www.evoqueownersclub.co.uk/threads/noises-and-holding-back.5652/


There are some video/sound clips on the latter thread link
The sound is exactly the same. As I said, they already replaced the turbo so not sure anymore.

My thought process currently is that maybe the intercooler is partly blocked so not working the way it should, this then combined with hotter outside temp somehow affects boost pressure (allowing air to push back into the turbo hence the turbo dumping to atmosphere?


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Re: Turbo "flutter" & loss of power (from a newbie)

Post by EYR » Thu Dec 05, 2019 2:16 pm

The Freelander 2.2 engine which you have suffered from 'stuttering' on initial throttle, and this was reported more so in summer temperatures but disappeared during the cooler months.
Freel2 forum has threads on the subject, my FL2 SD4 suffered it during the warmer periods with no resolve. Hard throttle overcame this but gentle/medium throttle had me toing and froing in the seat momentarily, not related to your problem maybe but 13 degrees ambient is certainly mentioned on some Freel2 threads.
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Re: Turbo "flutter" & loss of power (from a newbie)

Post by Canuk » Fri Dec 06, 2019 10:14 pm

In the middle of the VW lawsuits it was also found that Mercedes had set the EGR valve to allow more pollution at temperatures below 13 C.

Shortly after Mercedes stopped selling Diesels in Canada and the US.
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