Shuddering/Loss of Power

Faults and Technical chat for the Citroen C4 Cactus
thomwilkinson
Posts: 5
Joined: Thu Apr 20, 2017 6:51 pm

Re: Shuddering/Loss of Power

Post by thomwilkinson » Thu Oct 19, 2017 11:30 pm

Sounds very frustrating Curriemaster. I haven't done anything about mine yet as I never notice it on my commute however I will be contacting Citroen to see what they can do as it is certainly an issue when I want to pull onto a motorway. I'll let you know if I get any different/more useful responses!

erbert
Posts: 30
Joined: Thu Aug 27, 2015 8:24 pm

Re: Shuddering/Loss of Power

Post by erbert » Fri Oct 20, 2017 11:13 pm

I have been experiencing what sounds like the same problem intermittently for the last 2-3 months (maybe longer) I reported it to my local Citroen who booked it in to check it out, but said it might be worth filling up with a high octane fuel to ‘clear through’ any possible contaminate before then going back to regular unleaded. I tried this and it seemed to cure the problem. I cancelled the inspection, but then a few days later the issue arose again. I’ve just had my 2 year service and asked the dealer to have a look and see if they could source the problem.

Believe it or not they seem to have solved it. And I’m not saying that this is the cause of all the cases reported here, but thought it might help someone. I have an insurance black box tracker and had fitted myself as instructed. It has to be connected to the battery and then to an earth point on the car. The cables were very short and so I connected the earth to what I thought was a suitable point. Turns out I’d connected the earth to the top of the turbo ECU and the Citroen dealer thinks that was possible causing the problem. They have re routed the tracker to a proper earth point and so far in the space of a week it hasn’t misfired once, where the week before the service it must have done it a dozen times.

Be interested to know if this could be the cause for anyone else?
2015 1.2 PueTech (110) Flair, Shark grey, black Air Bumps, black alloys, Habana highlight pack, space saver spare and split fold rear seats.

davew
Posts: 656
Joined: Thu Apr 14, 2016 11:21 am

Re: Shuddering/Loss of Power

Post by davew » Sat Oct 21, 2017 9:43 am

erbert wrote:
Fri Oct 20, 2017 11:13 pm
.... They have re routed the tracker to a proper earth point and so far in the space of a week it hasn’t misfired once, where the week before the service it must have done it a dozen times.
A relevant possibility for vehicles troubled by misfiring but without blackbox trackers etc - imperfect grounding/ earthing of sensors such as oxygen sensor and anti-knock sensor could give false alarms to the ECU with consequential effect on engine running.

Will be interesting to hear the longer term outcome.

shburger
Posts: 3
Joined: Sun May 21, 2017 1:12 pm

Re: Shuddering/Loss of Power

Post by shburger » Mon Oct 23, 2017 2:12 pm

Sitting with the exact same problem here in South Africa with our 110. Going for a service next month at 45000km and will advise what they say

Danno
Posts: 2
Joined: Mon Oct 30, 2017 10:33 pm

Re: Shuddering/Loss of Power

Post by Danno » Mon Oct 30, 2017 10:44 pm

Same problem here in the UK on a dual carriageway on the way home from work in my petrol 110. Called out the AA (apparently fully covered as the car is under a year old). He ran the diagnostics which said the issue was with the fuel delivery. He followed me as the car limped on the way home. The turbo is not working and there is no real power and not safe to drive. We have only had the car 2 weeks so very disappointed.

Danno
Posts: 2
Joined: Mon Oct 30, 2017 10:33 pm

Re: Shuddering/Loss of Power

Post by Danno » Fri Nov 03, 2017 11:59 am

Just got my Cactus back and it was a faulty high pressure fuel pump that caused the shuddering/loss of power. They seemed to be very confident that it was the cause. New one fitted and all working fine now. It might be me but the engine seems much quieter when idling now and the turbo seems to give me the extra boost rather than 'jolting' on. Fingers crossed it lasts a bit longer this time.

davew
Posts: 656
Joined: Thu Apr 14, 2016 11:21 am

Re: Shuddering/Loss of Power

Post by davew » Sat Nov 04, 2017 9:36 am

Danno wrote:
Fri Nov 03, 2017 11:59 am
Just got my Cactus back and it was a faulty high pressure fuel pump that caused the shuddering/loss of power. They seemed to be very confident that it was the cause. New one fitted and all working fine now. It might be me but the engine seems much quieter when idling now and the turbo seems to give me the extra boost rather than 'jolting' on. Fingers crossed it lasts a bit longer this time.
Thanks for this information - please let us know if there's any recurrence of the issue.

curriemaster
Posts: 13
Joined: Sun Nov 20, 2016 8:23 pm

Re: Shuddering/Loss of Power

Post by curriemaster » Thu Nov 23, 2017 10:08 am

Hello all,

I havent had a chance yet to try and record the fault yet with my OBD dongle, but I do have an update. I had my car in for an MOT yesterday and the engine management light came on while they were conducting the check. They carried out a fault code interrogation and found a number of fault codes present (I was told there weren't any at the dealership):
  • Inter system can: one of the parameteres present in a data stream sent by the abs/esp ecu is invalid
  • Vehicle speed info fault
  • Fault in communication with abs/esp ecu
  • A number of instances of engine starts and/or restarts
Apparently they tried to clear these codes but they still returned. Im trying to get in touch with the dealership now but not having much luck: there are 4 days left on my warranty so its turning in to a bit of a bum clencher!

davew
Posts: 656
Joined: Thu Apr 14, 2016 11:21 am

Re: Shuddering/Loss of Power

Post by davew » Thu Nov 23, 2017 12:05 pm

curriemaster wrote:
Thu Nov 23, 2017 10:08 am
Hello all,

I havent had a chance yet to try and record the fault yet with my OBD dongle, but I do have an update. I had my car in for an MOT yesterday and the engine management light came on while they were conducting the check. They carried out a fault code interrogation and found a number of fault codes present (I was told there weren't any at the dealership):
  • Inter system can: one of the parameteres present in a data stream sent by the abs/esp ecu is invalid
  • Vehicle speed info fault
  • Fault in communication with abs/esp ecu
  • A number of instances of engine starts and/or restarts
Apparently they tried to clear these codes but they still returned. Im trying to get in touch with the dealership now but not having much luck: there are 4 days left on my warranty so its turning in to a bit of a bum clencher!

Hmm time running out a bit...

My understanding of the principles of abs/esp is that some manufacturers use the sensor information to reduce engine power when wheel spin occurs - so an error signal from the sensor could be the cause of your particular issue (in addition to many other possible causes...)

curriemaster
Posts: 13
Joined: Sun Nov 20, 2016 8:23 pm

Re: Shuddering/Loss of Power

Post by curriemaster » Sun Mar 11, 2018 5:09 pm

Hello all,

Well the shuddering event happened again, twice in the same journey. It hasnt happened for a couple of months and I was cautiously optimistic that maybe changing the spark plugs and updating the ECU had actually solved the issue. I havent been driving it on many long journeys though, so perhaps it never got a chance to fault.

The additional worry is that the car seems less "peppy" than it used to: the turbo boost seems to kick in at higher RPMs and not with the same vigour. Still no warning lights or anything coming on.

As you know my warranty expired in November before there were any resolutions, so now I feel as if I have been left out to dry a little bit. Im feeling pretty disappointed about the whole situation and to be honest at this stage I just want to get rid of the car and never buy a Citroen again. I am considering taking the car to a local garage that specialises in performance tuning to try and give them the problem in exchange for a few hundred quid, but I also think that could be throwing money at a lost cause.

I suspect that there will never be a resolution for this, which might be very frustrating for the forum goer that reads through this thread to end up with no answers! If I find out anything new, somehow, I will make sure to post it back here.

All the best.

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