S60, D3(2011) jerking between 1500 and 2000rpm

Alex9 · Jun 25th, 2020, 08:18

Hello,

Car started jerking between 1500 and 2000rpm about 3-4 weeks ago, both normal and hard acceleration - seems like a dip in power - and I can't seem to find the cause: there are no error codes; I've changed the boost control valve ( was going to change anyway) and had no effect.
I am looking next at checking and changing the fuel filter (car been serviced in December, I use Tesco and Shell fuel), cleaning the throttle body and checking all turbo hoses(again). Any other things to look at ?

Has anyone had this issue?

Thank you

Baal · Jun 25th, 2020, 18:03

I still have it, can't find anything wrong with it the car just feels slow. I'll clean my particulate filter and see how this turns out.

Sotosound · Jun 25th, 2020, 20:40

I had something like this with a 2009 Mondeo TDCi when the MAF sensor was dirty.

Cleaning it improved things. Replacing it was a permanent fix.

It isn't the same engine of course, but it probably has similar operating principles to the Volvo diesel.

Baal · Jun 25th, 2020, 20:59

Well, all turbo diesel cars operate in a similar manner.

I've replaced my turbo charger cause it had a lot of play in there, TCV valve, MAP sensor, MAF sensor, TMAP sensor and all of my turbo hoses. One thing left for me to try is cleaning my dpf and hope that will work.

Alex9 · Jun 26th, 2020, 06:49

I monitor my DPF soot levels on a weekly basis and make sure it regenerates. The symptoms are there regardless of the level of soot so not sure how the DPF might cause the jerking?

Baal · Jun 26th, 2020, 07:14

Clogged dpf can cause various strange symptoms, but if you say your soot levels are within acceptable parameters, then check your EGR valve for soot content and all of your boost related sensors. If a sensor is giving a false reading that could be the problem. It doesn't have to be dead to misbehave.

Baal · Jun 29th, 2020, 16:51

I'll replace my EGT sensor this week and report back.

Alex9 · Jul 1st, 2020, 12:23

Cheers Baal, will get to check all the hoses on Saturday and let you know, although the car behaved in the last few days....

Baal · Jul 1st, 2020, 21:18

Quote:

Originally Posted by Alex9

Cheers Baal, will get to check all the hoses on Saturday and let you know, although the car behaved in the last few days....

Exactly! The car sometimes behave normally pulls like crazy, sometimes it doesn't.

Also check your vacuum lines, there should be three 3.2mm hoses behind the engine going like this.

TCV - Turbo
Inlet manifold - TCV
HP fuel pump - Inlet manifold

Or something like that if I'm correct.

Putcar · Mar 26th, 2021, 21:19

Hi did you fix it? I have same problem

Jun 25th, 2020, 08:18	#1
Alex9 Junior Member Last Online: Jan 8th, 2023 09:29 Join Date: Dec 2018 Location: Rugby	S60, D3(2011) jerking between 1500 and 2000rpm Hello, Car started jerking between 1500 and 2000rpm about 3-4 weeks ago, both normal and hard acceleration - seems like a dip in power - and I can't seem to find the cause: there are no error codes; I've changed the boost control valve ( was going to change anyway) and had no effect. I am looking next at checking and changing the fuel filter (car been serviced in December, I use Tesco and Shell fuel), cleaning the throttle body and checking all turbo hoses(again). Any other things to look at ? Has anyone had this issue? Thank you Last edited by Alex9; Jun 25th, 2020 at 08:22.

Jun 25th, 2020, 18:03	#2
Baal Member Last Online: Jul 4th, 2022 15:18 Join Date: May 2020 Location: Ljubljana	I still have it, can't find anything wrong with it the car just feels slow. I'll clean my particulate filter and see how this turns out.

Jun 25th, 2020, 20:40	#3
Sotosound Premier Member Last Online: Yesterday 16:01 Join Date: Dec 2013 Location: Aylesbury	I had something like this with a 2009 Mondeo TDCi when the MAF sensor was dirty. Cleaning it improved things. Replacing it was a permanent fix. It isn't the same engine of course, but it probably has similar operating principles to the Volvo diesel.

Jun 25th, 2020, 20:59	#4
Baal Member Last Online: Jul 4th, 2022 15:18 Join Date: May 2020 Location: Ljubljana	Well, all turbo diesel cars operate in a similar manner. I've replaced my turbo charger cause it had a lot of play in there, TCV valve, MAP sensor, MAF sensor, TMAP sensor and all of my turbo hoses. One thing left for me to try is cleaning my dpf and hope that will work.

Jun 26th, 2020, 06:49	#5
Alex9 Junior Member Last Online: Jan 8th, 2023 09:29 Join Date: Dec 2018 Location: Rugby	I monitor my DPF soot levels on a weekly basis and make sure it regenerates. The symptoms are there regardless of the level of soot so not sure how the DPF might cause the jerking?

Jun 26th, 2020, 07:14	#6
Baal Member Last Online: Jul 4th, 2022 15:18 Join Date: May 2020 Location: Ljubljana	Clogged dpf can cause various strange symptoms, but if you say your soot levels are within acceptable parameters, then check your EGR valve for soot content and all of your boost related sensors. If a sensor is giving a false reading that could be the problem. It doesn't have to be dead to misbehave.

Jun 29th, 2020, 16:51	#7
Baal Member Last Online: Jul 4th, 2022 15:18 Join Date: May 2020 Location: Ljubljana	I'll replace my EGT sensor this week and report back.

Jul 1st, 2020, 12:23	#8
Alex9 Junior Member Last Online: Jan 8th, 2023 09:29 Join Date: Dec 2018 Location: Rugby	Cheers Baal, will get to check all the hoses on Saturday and let you know, although the car behaved in the last few days....

Mar 26th, 2021, 21:19	#10
Putcar New Member Last Online: Mar 26th, 2021 21:30 Join Date: Mar 2021 Location: Newport	Hi did you fix it? I have same problem

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