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Author Topic: Galaxy tdi hesitates/stutters when driving  (Read 9047 times)

Offline SPIKEY

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Galaxy tdi hesitates/stutters when driving
« on: June 29, 2014, 07:22:56 PM »
Good evening all,
Im really hoping someone can help me with an issue I seem to have with my galaxy. I did search other threads and although there are some with similar symptoms I cant seem to find an answer.

When driving at speeds of around 30-40 mph and usually in 3rd gear I seem to get what I can only describe as a stutter. It feels similar to tapping the brake pedal lightly whilst driving but not as harsh as kangarooing, but noticible to me and passengers. If you push the accelerator down whilst its doing this then the car obviously speeds up and problem dissapears.
Only seems to be at the above speeds and usually only in 3rd gear although my wife reports it has done this in 2nd gear.
Have run a vcds scan and nothing has shown up, replaced the maf in hope it would cure this but unfortunately not.

Car is serviced regular and my thinking is that its a fueling issue as problem goes away under acceleration.
I will have the fuel filter changed and look into the injector wiring do you have any other ideas??

Many thanks
James

Offline insanitybeard

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #1 on: June 30, 2014, 11:07:27 AM »
What circumstances is it happening under- i.e, constant throttle on the level or under acceleration etc? Is it definitely an engine performance/running issue and not a vibration which disappears when your speed or engine load changes? Has the vehicle had any work done recently which may have some relevance to it, or is it a fault which has just become apparent?
Always learning..... Often by mistakes!

Offline Chrispb

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #2 on: June 30, 2014, 12:07:25 PM »
Hi Jimbo

Relay 109 is also a possibility as this wouldn't log a fault code, injector wiring issues will log a fault maybe worth checking the large multiplug on the end of the cylinder head has no corrosion and is tight.
2009 Kia Sedona GS In Black 2.9CRDI 183PS. 5 Speed Manual WAV.
2003 MK2 Galaxy Ghia In Solid Black 1.9 TDI 115PS. 5 Speed Automatic.

Upgraded Eberspächer booster heater  to independent heating with 7 day timer.

With VCDS lite (full version) need a code clearing or want to scan for faults in the north kent area, PM me.
All for a pint of Strongbow.

The FordMPV.com Forum - The free forum for questions and answers relating to the Ford Galaxy, S-Max and C-Max

Offline SPIKEY

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  • Model: Galaxy Mk2
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Re: Galaxy tdi hesitates/stutters when driving
« Reply #3 on: June 30, 2014, 04:08:53 PM »
Hi Guys,
Thanks for the replies so far.
 Issue occurs when on constant throttle IE keeping speed at 30mph in a 30mph zone for instance. The car will then start doing the stuttering, if I now accelerate then the problem goes away and does not return until we are back at speeds around 30-40 mph and 3rd gear.
(This is intermittent and not always present)

This is definitely not a vibration and more a chug or light tapping on brake pedal. The fault just appeared and has slowly started to become more regular. No new work has been done other than the Maf sensor and oil change but problem was prevalent before then.
I have a new 109 relay in the car so I guess it wouldn't harm to fit it and tick it off the possible list

Offline insanitybeard

  • Greetings from Mr Chick!
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Re: Galaxy tdi hesitates/stutters when driving
« Reply #4 on: June 30, 2014, 04:36:38 PM »
I'm not sure how bad a fault has to be before the ECU will log a fault code, as it's happening with constant throttle I'm wondering if the throttle position sensors on the pedal may have an intermittent problem which hasn't yet logged a fault, see this. Perhaps one of the other guys with more experience of the VW engine management system may be able to advise if this is a potential cause.
Always learning..... Often by mistakes!

Offline SPIKEY

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #5 on: July 01, 2014, 02:08:23 PM »
My initial thought was possibly a sensor on the accelerator pedal.
will follow your link and see if that makes a difference.
Thank you for your help, at least I have a few more options to explore

Offline SPIKEY

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #6 on: October 07, 2014, 06:21:26 AM »
Bit of an update on this.
I changed relay 109. Not as hard as I initially thought just fiddly. This seemed to make a difference for a few days but the issue is still there so I changed the fuel filter over and replaced the two round rubber seals in the top, but still have the stutter.
Out came the vag com and a scan revealed absolutely nothing, I will probably get the injector wiring changed just to rule that out but thought a code would be present for that.
I know the cam belt is getting close to renewal time could this be part of the issue?
Any other ideas??

On a plus note my booster heater seems to be working. Went out at 05:30 after clearing the codes last night and let it smoke the street until it cleared (Thought this was more sociable than doing it when everyone is up and about.) Now have the jet noise and warm air

Offline Chrispb

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #7 on: October 07, 2014, 09:40:37 AM »
With the car stationary and the engine running if you press the throttle slowly up to about  2000 RPM does the engine speed rise smoothly as you would expect or does the engine surge (revs up and down) on it's own?
I had this problem after fitting one of those cheap MAF sensors from ebay, and as we know MAF sensors don't always register a fault.

As you have Vagcom you could do some live data using measuring blocks 3, 10, 11 this may give a clue as to what's happening
2009 Kia Sedona GS In Black 2.9CRDI 183PS. 5 Speed Manual WAV.
2003 MK2 Galaxy Ghia In Solid Black 1.9 TDI 115PS. 5 Speed Automatic.

Upgraded Eberspächer booster heater  to independent heating with 7 day timer.

With VCDS lite (full version) need a code clearing or want to scan for faults in the north kent area, PM me.
All for a pint of Strongbow.

The FordMPV.com Forum - The free forum for questions and answers relating to the Ford Galaxy, S-Max and C-Max

Offline SPIKEY

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #8 on: October 07, 2014, 04:59:20 PM »
Hi Chris, only just seen your reply.
I buckled, sent the car into the local garage as we go on holiday in two weeks and needed the cambelt inspected as I think renewal is due.
Garage rang me earlier and have checked all hoses and connections and couldn't find a problem. They did however say my egr is completely gunked up and restricting flow, could this be a contributing factor to the stutter.
There other thought was possibly the injectors but as there has been no fault code on my vag com I'm not so sure this is the case and don't want to be spending in excess of £900 to find out.

So, could the gunky egr be responsible?

Offline insanitybeard

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #9 on: October 07, 2014, 05:25:35 PM »
A sticking EGR valve can certainly cause engine performance issues- if it's not doing it's job properly it could be allowing spent hot exhaust gas back into the intake when you're accelerating, which would cause a loss of performance.
Always learning..... Often by mistakes!

Offline SPIKEY

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #10 on: October 07, 2014, 06:17:49 PM »
Cheers insanitybeard.
I'm hoping this sorts my problem at the very least I guess cleaning it out may stop something else going wrong as it was apparently very bad.

Am I right in thinking that a faulty injector would throw up a code?

Offline Chrispb

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #11 on: October 07, 2014, 06:42:56 PM »
To be honest I've run mine with the EGR vacuum pipe removed and plugged and fitted a new EGR when it's diaphragm split and not noticed any difference in performance.
Restricting the intake which is what happens when the intake manifold and EGR get clogged with oily sooty crud is not a good idea but I've seen a lot of clogged intakes with no running problems at all.
2009 Kia Sedona GS In Black 2.9CRDI 183PS. 5 Speed Manual WAV.
2003 MK2 Galaxy Ghia In Solid Black 1.9 TDI 115PS. 5 Speed Automatic.

Upgraded Eberspächer booster heater  to independent heating with 7 day timer.

With VCDS lite (full version) need a code clearing or want to scan for faults in the north kent area, PM me.
All for a pint of Strongbow.

The FordMPV.com Forum - The free forum for questions and answers relating to the Ford Galaxy, S-Max and C-Max

Offline SPIKEY

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  • First Name: James
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Re: Galaxy tdi hesitates/stutters when driving
« Reply #12 on: October 08, 2014, 04:36:31 PM »
It seems the issue may be resolved.
Call back from garage today reported a very clogged up egr and pipework, making a valve stick open.
New egr fitted and pipes cleaned, wife says its like driving a different car and so far no stutter.

Fingers crossed

Offline SPIKEY

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #13 on: August 19, 2015, 08:41:22 PM »
Good evening,
Thought I would resurrect this thread as it's an ongoing issue instead of making a new post.
I'm still getting my stuttering when driving seems to be around the 2000 rpm mark sometimes slightly under and sometimes slightly over.
below is what I have done so far

New maf sensor (genuine part)
I have changed relay 109
Had the Egr valve and assembly cleaned and replaced
vac pipes checked by garage when egr was sorted
The injector wiring loom has been replaced
New Cambelt and water pump fitted but this was general maintenance and not intended to fix this issue.
No fault codes are being stored other than when the car goes into limp mode and  I believe this to be turbo vane issue, however the stuttering don't seem to happen once in limp mode

It was suggested before to do some live data recording but I have no idea how to do this and the software is I  my old laptop that won't hold a charge.
does anyone have any further ideas as to what I could try

Offline insanitybeard

  • Greetings from Mr Chick!
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Re: Galaxy tdi hesitates/stutters when driving
« Reply #14 on: August 20, 2015, 01:35:42 AM »
Did you ever look at the throttle position sensor contacts on the pedal?

There's a thread on power loss here which may be worth a read, and contains some diagnostic stuff.

You say the vacuum pipes were checked but the control solenoids for the EGR and turbo can also give trouble. By all accounts the main vacuum pipe from the tandem pump to the servo can also leak (the vacuum supply to the above valves branch from this pipe).

The fact that you've still got a limp mode caused by suspected sticking turbo vanes could also have some bearing on this.
Always learning..... Often by mistakes!

Offline gregers

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #15 on: August 20, 2015, 09:23:59 PM »
just by chance you havnt done this?

you given it an Italian tune up yet?
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The FordMPV.com Forum - The free forum for questions and answers relating to the Ford Galaxy, S-Max and C-Max

Offline SPIKEY

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #16 on: August 21, 2015, 10:16:52 AM »
Sorry for late reply, I have been working nights.
Insanity I haven't done the throttle position sensor, I should have done this earlier but notes said it needed to be aligned properly by making marks etc and didn't want to fluff it up ( I'm not overly mechanically minded) but suppose I should attempt it. What type of cleaner would you recommend?.
replacing vac hoses as opposed to just checking them wouldn't go amiss either.
I have noticed a small filter on the end of a vac line that's looking a little dirty/old would this impact anything? ( Located around the area behind air filter box)

Greggers I have done the Italian tune ups, sometimes the car is like a rocket and others it hits limp mode. Used a fuel additive previously too


I also removed the map sensor and gave it a wipe round as it was quite oily, since doing this the stutter doesn't seem as bad or as regular. However this could just be pure coincidence.

Offline insanitybeard

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #17 on: August 21, 2015, 11:25:45 PM »
Isopropyl alcohol or electrical contact cleaner should be a safe bet. Having said that, if the pedal sensors were causing the problem I would have expected fault codes to be logged. Is the vehicle going into limp mode very often? What fault codes are you getting when it does? I think the filter you mention is to purge the system of vacuum when the engine switches off. Unless it's completely blocked to the point of allowing no air to pass through it whatsoever I can't see it being the cause of the problem, but don't take my word as gospel on that.
« Last Edit: August 21, 2015, 11:31:36 PM by insanitybeard »
Always learning..... Often by mistakes!

Offline SPIKEY

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Re: Galaxy tdi hesitates/stutters when driving
« Reply #18 on: August 23, 2015, 01:46:28 PM »
Will get some contact cleaner and give the pedal switch a go, can't do any harm I guess.
The filter isn't too bad and I can still see its original colour so not too dirty but may just replace this as it's cheap and probably never been done.
Code wise I had it written down in a notepad, something I always do when scanning so I can see if new codes pop up or return, however I now cant find the pad. Will post it up when I find it but from memory I believe it's the 17965 which I have read up on thanks to this site.

 

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