The Dispatch | Expert | Scudo Hub

Ktm666

Member

Registered: 2016-11-11

Posts: 7

2004 Dispatch Fueling issue

Hi all. I've used the website on and off over the last few years but only just registered as I can't seem to find any solution to a problem I've encountered, so thanks in advance to anyone who might be able to suggest anything or has had a similar issue in the past.
My van is a 2004 Dispatch (non turbo).
All
Recently, my dispatch van was stuttering slightly at motorway speeds when maintaining a speed - basically, when doing 60ish mph, it would suddenly feel like the van was hit by a head wind. A slight press on the throttle would solve the issue.
Since this, I've replaced both the fuel and air filter, which made no difference. I've also taken it to a garage who plugged it into the diagnostic machine and no faults were showing.
I have used it earlier and it was doing the same, but all of a sudden, it started jerking when trying to maintain a speed, as if the engine was trying to stall. This would stop I I floored the throttle or got off it completely.
Basically, I got home driving it like a 2 stroke, throttle on full, or throttle off.
Temp is normal, oil level ok, water level ok, no strange or unusual sounds. No engine management light. When the throttle is fully down, it just accelerates normally with no issues. When I'm still in neutral, I can accelerate through the revs with no issue or stuttering, so it's only when the engine is under load.
people have suggested air flow meter or throttle position sensor. I haven't changed these as I thought any fault on these would be shown on the diagnostic?
If it makes any difference, I recently had a new clutch fitted. Prior to this, I used to have the very slight 'head wind' sensation.
Any thoughts?
Thanks

Casper

Member

From: East Lothian

Registered: 2015-12-20

Posts: 2,180

Re: 2004 Dispatch Fueling issue

Did you fully prime after changing the fuel filter? Sounds like air or dirty fuel to me.

Ktm666

Member

Registered: 2016-11-11

Posts: 7

Re: 2004 Dispatch Fueling issue

Yeah, I fully primed it. When it started stuttering yesterday I pulled over and re primed it but it was still doing it

Casper

Member

From: East Lothian

Registered: 2015-12-20

Posts: 2,180

Re: 2004 Dispatch Fueling issue

Really is an odd one. Could even be an intermittent air leak. I have an intermittent fuel leak that i can find. Hammer the van and it stinks of diesel. Like you i have the 1.9 non turbo and when i got that it was running like a bag of shite when cold and could be a bad starter. It was like the fuel was flowing back to the tank overnight. New filter and prime cured that. You been round the fuel pump making sure all the pipes are nipped up tight. Any wet over the injector area?

vaz2121

Member

From: Glasgow Living:~ SW. Scotland

Registered: 2015-08-31

Posts: 1,311

Re: 2004 Dispatch Fueling issue

Really is an odd one. Could even be an intermittent air leak. I have an intermittent fuel leak that i can find. Hammer the van and it stinks of diesel. Like you i have the 1.9 non turbo and when i got that it was running like a bag of shite when cold and could be a bad starter. It was like the fuel was flowing back to the tank overnight. New filter and prime cured that. You been round the fuel pump making sure all the pipes are nipped up tight. Any wet over the injector area?

I agree with Casper's thoughts however  if the usual basic try's are not working..... . Is it a high miler ......  I assume it'll have the Lucas pump................. high mileage doesn't necessarily mean a problem but might indicate possible wear problems with injectors and of course even if it's low mileage... someone could have been using cooking oil which Lucas pumps don't like very much...over time 

Don't mean to be all doom N gloom but injectors or pump would seem to be on the check list next................all else being equal

vaz2121

Member

From: Glasgow Living:~ SW. Scotland

Registered: 2015-08-31

Posts: 1,311

Re: 2004 Dispatch Fueling issue

I have an intermittent fuel leak that i can find. Hammer the van and it stinks of diesel.

Casper............. I had a dog van that had an XUD1.9 non turbo in it that did much the same.... can't remember if it was a Lucas pump or not ..........but diesel was coming out of the top of the pump where the throttle spindle goes in and seemed only to stink of diesel when it was given the beans................

Took a bit of finding as diesel was running down back of pump and on inspection was not that easily noticeable but stank from heat of the block as it dribbled down..... not that it was even that big a leak................

Casper

Member

From: East Lothian

Registered: 2015-12-20

Posts: 2,180

Re: 2004 Dispatch Fueling issue

Aye i am going to have to bike the bullet and get my hands dirty as no doubt its costing me money. Ill get a seal kit ordered up for the start of the year and pull it apart making sure everything is nice and tight. I am draining the tank down just now (Still using Belgian diesel) then i am going to start running the BP ultimate and Esso like fuel for a while to see if they clean as well as they mention. I did notice a power difference when using the more expensive petrol on the bike and in my wifes little Fiat so fingers crossed its got the same effect on the van.

frank

Member

Registered: 2016-11-06

Posts: 4

Re: 2004 Dispatch Fueling issue

my money would be on the maf sensor 

Ktm666

Member

Registered: 2016-11-11

Posts: 7

Re: 2004 Dispatch Fueling issue

Thanks both. It's not particularly high mileage, it's around 140,000 miles and hasn't really had a tough life as it's a wheelchair conversion rather than a builders van.
I'm hoping it's not the pump or injectors. I haven't really had a good chance to look today as I've been working.  When I looked the night it happened, the injectors looked a little wet but there was no strong smell of diesel so I'm not too sure. I think my best option is to go to a diesel diagnosis place to check the pressures.

Ktm666

Member

Registered: 2016-11-11

Posts: 7

Re: 2004 Dispatch Fueling issue

I seriously hope it is the MAF sensor! My last attempt before taking it is is to clean it.

frank

Member

Registered: 2016-11-06

Posts: 4

Re: 2004 Dispatch Fueling issue

you could run some live readings via obd bluetooth or whatever maybe ?

Casper

Member

From: East Lothian

Registered: 2015-12-20

Posts: 2,180

Re: 2004 Dispatch Fueling issue

Where is the MAF on the 1.9?

Ktm666

Member

Registered: 2016-11-11

Posts: 7

Re: 2004 Dispatch Fueling issue

I'll see if my mate at the garage can run live readings for me. The last diagnostic test was ran without the engine running. Came back all clear.
MAF on the 1.9 it basically on the pipe that leaves the top of the air filter housing.

Casper

Member

From: East Lothian

Registered: 2015-12-20

Posts: 2,180

Re: 2004 Dispatch Fueling issue

Cheers Orange bike rider. Ill have a good look but cant recall seeing anything when last changed the air filter. I am overdue a service so may as well get all the parts ordered at the end of the month.

Ktm666

Member

Registered: 2016-11-11

Posts: 7

Re: 2004 Dispatch Fueling issue

Just as an update on this, fueling and everything seem ok. The garage think it is an exhaust failure, causing a back pressure issue. Will keep the thread up to date in case anyone has similar issues.

Casper

Member

From: East Lothian

Registered: 2015-12-20

Posts: 2,180

Re: 2004 Dispatch Fueling issue

Just as an update on this, fueling and everything seem ok. The garage think it is an exhaust failure, causing a back pressure issue. Will keep the thread up to date in case anyone has similar issues.

What as in exhaust rotting from the inside and clogging itself up? New one to me but if that is the case start changing parts. They are not that expensive

Eurocarparts. Front seaction from £44,49 Mid section from 34.99. Rear £31.99

Or search this lot as tehy are mega cheap for my car.

http://shop.etscompany.eu/exhaust-system-c-2.html

vaz2121

Member

From: Glasgow Living:~ SW. Scotland

Registered: 2015-08-31

Posts: 1,311

Re: 2004 Dispatch Fueling issue

Just as an update on this, fueling and everything seem ok. The garage think it is an exhaust failure, causing a back pressure issue. Will keep the thread up to date in case anyone has similar issues.

Now there's a point I didn't consider.... I years ago had the cat in my diesel Escort fall to bits (didn't know at time) and guts would on occasion move and block exhaust flow, but it just wouldn't go ..... leave for 15 mins or till next day and it would fire up......

A mate left his car stand for a year and it refused to go point blank he in the end discovered that the back box was full of water......??

Emptied it out and started first turn ..........
....................................... so you might be onto something

                                                         

Ktm666

Member

Registered: 2016-11-11

Posts: 7

Re: 2004 Dispatch Fueling issue

Yeah, I hope this is it otherwise the van will be going as I've had enough!
Basically, there is no sign the fuel system has any problems, no fault codes showing, its a mystery!
The mechanic collected the van for me and drive it to the garage (typically it didn't play up for him!!!).
Van went up on the lift and the section to the back box has snapped. This wasn't the case before, so maybe that's why it wasn't playing up for him...!
These problems started after I had a new clutch installed (the thrust bearing went on the last one). While it was in the garage for the clutch, I asked them to patch the exhaust as it was mentioned to me on the last MOT that it was blowing. Maybe this caused the issues I'm having as it was venting through the holes in the exhaust where the CAT / exhaust was blocked.
Casper -  thanks for the links, ive the garage (back street family kind) has sourced all the parts and will be fitting, as I have the wheel chair converted van the exhaust routing is different...! Nothing's easy is it?!
Anyway, full system including CAT and fitting is £250, which includes making the pipework to route where it needs to go.  I was actually pleasantly surprised, I remember the days where a CAT alone was £500+! I suppose now DPF is the money spinner! Thankfully mine hasn't got one!