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Slight hesitant (hiccup) on gentle acceleration. (Resolved)
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Author Post
Crouchy   
Wed Feb 19 2014, 11:40am
Member No: #34185
Joined: Feb 06 2014
Location: Birmingham
 Hi to all.

C4GP 1.6HDi. 160,000.

Purchased this car recently.
Yesterday had all filters replaced (oil, air, fuel, pollen) and used low saps oil as recommended and also changed Glow plug relay was getting Ghost Code P1351 and also P1446 and P2032.

Car is showing no engine management lights. The only warning is(diesel particle fluid low) on initial start up it then disappears. The D.P.F fluid was checked yesterday and there is about half of the plastic pouch left.

Getting a slight hiccup on acceleration between 1500-2000 rpm.
Sorry if this vague but I can't confirm the full history of the car.
Any pointers as to most obvious would be gratefully appreciated.

Thanks in advance
PS. Might be worthwhile me upgrading to premier membership.
Dave_Retired.   
Wed Feb 19 2014, 01:40pm

Member No: #1
Joined: Aug 07 2006
Location: Northumberland
 EGR valve possibly sticking?
Crouchy   
Wed Feb 19 2014, 01:42pm
Member No: #34185
Joined: Feb 06 2014
Location: Birmingham
 Thank you. I am right in saying Egr is under Fuel Filter on 1.6 hdi.
Thanks Again.
Dave_Retired.   
Wed Feb 19 2014, 02:02pm

Member No: #1
Joined: Aug 07 2006
Location: Northumberland
 Have a read ofthis - Click Here - - similar issue?
1 User said Thank You to Dave_Retired. for this Post :
 Crouchy (19 Feb 2014 : 14:46)
FrankBullitt   
Wed Feb 19 2014, 02:54pm

Member No: #19238
Joined: Apr 12 2011
Location: Cambridgeshire
 Very slight 'shunting' when coming on the throttle? Ours has always done it to a small degree and just assumed it's the ECU being slightly foxed by the load and engine speed at low revs.

I wouldn't worry about it.
Crouchy   
Thu Feb 20 2014, 09:35am
Member No: #34185
Joined: Feb 06 2014
Location: Birmingham
 After doing some searches I have found that maybe my problem could also lie with injectors seals..as well as Egr.
I have attached a photo.....looking from left to right ..1 ..2..3..4...... No.s 2 & 4 are wet with oil is this a classic case of injector seals.....kaput ...

Thanks to all for your help.
routemaster1   
Thu Feb 20 2014, 10:11am
Member No: #574
Joined: Jul 08 2007
Location: Dorset
Crouchy wrote ...

After doing some searches I have found that maybe my problem could also lie with injectors seals..as well as Egr.
I have attached a photo.....looking from left to right ..1 ..2..3..4...... No.s 2 & 4 are wet with oil is this a classic case of injector seals.....kaput ...

Thanks to all for your help.


Not sure, but I seem to remember that Phil posted that the injectors are numbered right to left. I don't know whether that makes any practical difference
polestarboy   
Sun Feb 23 2014, 10:33am
Member No: #33110
Joined: Nov 06 2013
Location: uk barnsley
 Injectors are numbered right to left, they do look a tad dark but I read somewhere that the solenoid for the turbo vac valve can cause this hesitation.Even said that could be a timing sensor.. Process of elimination really as many Ive read end in different solutions.
Crouchy   
Sun Feb 23 2014, 12:23pm
Member No: #34185
Joined: Feb 06 2014
Location: Birmingham
 Thx for all your replies.

But if you read the thread .
I took the photo and I did say looking from L to R no, s 2 & 4 look wet .

Sorry for any confusion.
Kevin.
polestarboy   
Mon Feb 24 2014, 05:33am
Member No: #33110
Joined: Nov 06 2013
Location: uk barnsley
 If the seals are kaput you would see combustion gas/smoke leaking up out of the injector sealing area...Or maybe the hold down bolts have lost its torque settings..very common
Crouchy   
Mon Feb 24 2014, 06:01am
Member No: #34185
Joined: Feb 06 2014
Location: Birmingham
 Thank you for your reply.
I only numbered them looking at the pic left to right 1,2,3,4 for my own reference .
Thanks Again
Crouchy   
Thu Feb 27 2014, 12:50pm
Member No: #34185
Joined: Feb 06 2014
Location: Birmingham
 Always best to post an update it's the right thing to do.

My slight hesitation on acceleration was indeed a Sticky EGR valve.

Thanks for all your help and a big thank you to C6 Dave for the diagnosis.

I'll be back

Kevin.
 

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