Runboard.com
You're welcome.
Australian X-Trail Website Members Rides

Site Search

Facebook Aussie Forum Website Twitter Aussie Forum Website YouTube Aussie Forum Website Flickr PhotoBucket MSN Messenger Skype RSS Feed Events Calendar Admin Mailbox Nissan Australia myNissan Capped Service Fuel Consumption Monitor Tyre Size Calculator Australian X-TRAIL Forum Live Chat

Forum Rules   
   Register for a free global account (learn about it) | LOG IN: globally (click here) (Lost Password?)




Page:
 1  2 

 
Poiret Profile
Live feed
Blog
Friends
Miscellaneous info




Date Registered: 05-2017
TOTAL POSTS: 4
Reply | QUOTE
Weird Misfire-could it be the timiing chain?


Hello all,

I am hoping someone may be able to help me diagnose an issue I have with my 2003 2.5 litre with LPG conversion.

The car starts and always sounds fine but it has developed what I think is a misfire (the cars shakes momentarily) at very specific engine speeds. Initially I found it only happened between 2750 and 3000 RPM but now it happens at 1900-2000, 2500-3000, and again somewhere over 4000 RPM. It behaves fine everywhere else. In the range 2500-3000 (where it is most annoying) it will still accelerate but very slowly and will not go past 3000 RPM. You can however get above 3000 by changing down a gear so it jumps and it will then sit quite happily around 4000 but then I'm doing 130K/h which is not really practical. Fortunately I normally drive quite slowly so staying below 2500 RPM is fine but getting there is a nightmare as are slow hilly roads. What is odd is that it does not do this all the time. It is always fine when cold. Sometimes it starts after five or ten minutes sometimes it doesn't happen for 90 minutes or more. If you stop for fuel it is normally fine for a few minutes afterwards. It starts perfectly and it doesn't make any odd noises.

I have put a code reader on which has come back with P0011 and P0340 which both relate to the camshaft. It doesn't always put the light on but does sometimes. I have replaced the camshaft sensor which I thought fixed the problem but it came back. Assuming that the sensor I removed was fine I put that back in and put the new one in place of the crankshaft sensor and it still happens. I have a horrible feeling that it may be the timing chain (which has done just about 104k) which is not cost effective to replace now. It has been suggested that it may be a wiring fault which would be a nightmare to find or even spark plugs (which I am going to change now).

My question really is this. If it is the timing chain does that explain the fact that it doesn't happen all the time and it only happens at certain engine speeds? Is there an easy way to find out of if is the chain?

Any suggestions would be gratefully received.
1/Jun/2017, 1:40 am Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
Live feed
Blog
Friends
Miscellaneous info



Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5918
Reply | QUOTE
Re: Weird Misfire-could it be the timiing chain?


If it runs OK when cold or when sat for a while at a fuel station but when hot it has problems it could be related to the LPG injectors and LPG flow. Have you had those checked ?

Does it also do the same when running on petrol ?

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
1/Jun/2017, 5:04 pm Link to this post Send Email PM   Send Private Message Blog
 
Poiret Profile
Live feed
Blog
Friends
Miscellaneous info




Date Registered: 05-2017
TOTAL POSTS: 4
Reply | QUOTE
Re: Weird Misfire-could it be the timiing chain?


I don't think it's the LPG as it happens on both. New plugs made no difference either.
2/Jun/2017, 3:06 am Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
Live feed
Blog
Friends
Miscellaneous info



Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5918
Reply | QUOTE
Re: Weird Misfire-could it be the timiing chain?


Are you running flashlube or alternating between petrol and lpg ?
I have heard of burnt pistons with lpg on the Xtrails which would cause problems on both fuels.

My Xtrail has done 185k and though the engine is down on power and has less fuel economy with a suspected stretched timing chain, there is no misfire or shaking as you describe.

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
2/Jun/2017, 7:38 am Link to this post Send Email PM   Send Private Message Blog
 
AMLagonda Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 04-2012
Location: Perth
TOTAL POSTS: 45
Reply | QUOTE
Re:


Timing Chain does not "stretch" Must be something to do with the sensor but funny how from what you describe sounds like one of the coils packs.....

---
Gary X-2376
T30 Manual X-trail
Raised King Springs
2/Jun/2017, 4:19 pm Link to this post Send Email PM   Send Private Message Blog
 
Poiret Profile
Live feed
Blog
Friends
Miscellaneous info




Date Registered: 05-2017
TOTAL POSTS: 4
Reply | QUOTE
Re: Weird Misfire-could it be the timiing chain?


When I bought it it did have burnt pistons but this was fixed and a Flashlube system fitted. Since then it has run almost entirely on LPG but I have regularly checked the Flashlube dose rate. When the valves burnt away it was a completely different fault. It would cut out as you slowed at junctions-I got very good at slowing early enough to be able to jump start it though.

Thanks for the advice. I may get a coil pack as they're relatively cheap and try that. Any serious work is not really worth it.
8/Jun/2017, 4:30 am Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
Live feed
Blog
Friends
Miscellaneous info



Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5918
Reply | QUOTE
Re: Re:


quote:

AMLagonda wrote:
Timing Chain does not "stretch" .....



The links wear over time and this makes the overall length of the chain longer, effectively "stretching" it. This slight length change makes the number of links between crank and cam sprockets less by a fraction which changes the timing angle of the cams and hence the timing to a point which the ECU cannot adjust for enough.

Once I find the post about it in the overseas forum I found a while ago where they mentioned it I will reference it on our forum.

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
11/Jun/2017, 9:03 am Link to this post Send Email PM   Send Private Message Blog
 
TOMsXtrail Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 01-2013
Location: Brisbane
TOTAL POSTS: 34
Reply | QUOTE
Re:


Very interesting, I just jumped on here to report a very similar issue with my Diesel T31 TL 2008 model, I'm waiting on my OBD2 scanner to arrive in the post to get the codes, no engine lights or anything indicating something is wrong. I have replaced Boost sensor - and the car was fine for 5km's and the problem came back, and I cleaned the MAF sensor and the car was fine for 30km's, I have a new MAF sensor also coming and one of those provent catch can's with full hose kit to keep the oil off the MAF sensor.

Keep us posted on what you find and I'll do the same.

---
______________________________________________________________________
Tom ( X-2862 ) 2008 Nissan X-Trail T31 TL - Pearl white - DCi 6sp manual
Genuine Nissan Roof Racks, Cargo Barrier, Tow-bar, Nudge-bar, Rubber Floor-mats, 4WD Enhanced
20/Jul/2017, 11:44 am Link to this post Send Email PM   Send Private Message Blog
 
TOMsXtrail Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 01-2013
Location: Brisbane
TOTAL POSTS: 34
Reply | QUOTE
Re:


I got my OBD2 scanner today, no faults recorded, car was behaving until about 30km in again, and then started to stutter under load (going up hill in 4th at approx 80km/h).
Actually my scanner checked the ECU history and it never has skipped a beat - including cleared codes - this has to be most frustrating thing as when you have a code it's an easy fix because you know what you're looking for.
I'm actually thinking not timing chain but small boost leak somewhere, however there is no tell tell signs anywhere under the hood (oil splat).

---
______________________________________________________________________
Tom ( X-2862 ) 2008 Nissan X-Trail T31 TL - Pearl white - DCi 6sp manual
Genuine Nissan Roof Racks, Cargo Barrier, Tow-bar, Nudge-bar, Rubber Floor-mats, 4WD Enhanced
20/Jul/2017, 6:30 pm Link to this post Send Email PM   Send Private Message Blog
 
TOMsXtrail Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 01-2013
Location: Brisbane
TOTAL POSTS: 34
Reply | QUOTE
Re:


Swapped a new MAF sensor in today, no difference. Off to the mechanic.

---
______________________________________________________________________
Tom ( X-2862 ) 2008 Nissan X-Trail T31 TL - Pearl white - DCi 6sp manual
Genuine Nissan Roof Racks, Cargo Barrier, Tow-bar, Nudge-bar, Rubber Floor-mats, 4WD Enhanced
21/Jul/2017, 1:11 pm Link to this post Send Email PM   Send Private Message Blog
 


Reply




Page:
 1  2 





You are not logged in (login)

forum sticker
Back to top Back to top

Back to top

<-- end container -->