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Old 17-03-2014   #1
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1.3 Multijet will starting issue! Confusing one!!

Afternoon
Recently bought a doblo van of a pal as I needed one for work. Van had starting issues and hed tried ...
Fuel rail
fuel pump (second hand)
and nothing cured it! you can go out to van put key into it turn it over and it will start OR you can go out try itll turn over with out starting then battery goes flat put jump leads on and eventually it will start.


When running its faultless no misses or anything like that but then if you turn it off your back to square one doesn't matter if hot or cold. You can literally have it running a hour turn it off then flick key straight back on and it will just turn over like its never ran a day in its life!


Another good friend who knows a bit has had a look due to fact it will fire first time on EZ start has concluded its probably a fuel problem! But has no idea what it is..


Some one has had a go at fixing it before but to no avail..


I seem to have 2 options..


1.) start changing random parts until it works
2.) take it to a diesel speacilist near me but he will charge through teeth!


just trying you guys as intending to run van for a long time but I also run a Impreza and on the owners club for them and constantly advising or being advised on there!!


Also apparently pump in tank is fine as when ignition on its pumping


Any tips hints expierence or help honeslty appreciated


Thanks
Mike
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Old 18-03-2014   #2
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Re: 1.3 Multijet will starting issue! Confusing one!!

I was going to suggest having the crank sensor checked out, but I remember a mate having a Combo (same engine) with a similar problem and it turned out to be something simple!

The electric pump wasn't getting a feed for some reason, he found something wasn't connected, but for the life of me I can't remember

I'll ask a mate if he remembers....
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Old 18-03-2014   #3
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Re: 1.3 Multijet will starting issue! Confusing one!!

That would be really great pal please it's getting frustrating!
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Old 18-03-2014   #4
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Re: 1.3 Multijet will starting issue! Confusing one!!

Not sure if the 1.3 Multijet fuel priming is the same as the 1.9JTD, but this time last year I had similar issues with my 1.9JTD. I couldn't get a voltage feed to the lift pump in the tank. If a bye passed the lift pump by intercepting the fuel line in the engine bay and hand pumped fuel into the main fuel pressure pump, it ran perfectly or until I couldn't get enough fuel into the pressure pump.
With only the small manufacturers handbook to work with, I thought I had checked all the fuses and relays, which the handbook indicated where located in the engine bay fuse box. Then by chance, I came across a post in the Multipla section whereby a fella had to change his fuse box that is located in the cabin. I had a luckier escape than that guy. My cure was a fettle with the four relays in the cabin fuse box and bingo, leccy was restored to the tank lift pump and it fired up straight away.
What I can make of it, the lift pump primes the fuel feed to the pressure pump. Once the engine is running, and I could stand corrected here, I believe the main pressure pump takes on a suction role and helps draw fuel up from the tank.
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Old 18-03-2014   #5
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Re: 1.3 Multijet will starting issue! Confusing one!!

Iv noticed it's got a bit of a fuel leak from pump on engine so going to try another, I think pump in tank is working as I accidentky left ignition on and cracked fuel line off and it was spraying fuel until i turned ignition off!
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Old 18-03-2014   #6
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Re: 1.3 Multijet will starting issue! Confusing one!!

IF.....you have a leak at the pump or the fuel rail, you will have starting problems.

The pressure needs to be high so the injectors can fire.

If the tank pump is working, I would be looking at the leaking main pump then!
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Old 18-03-2014   #7
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Re: 1.3 Multijet will starting issue! Confusing one!!

There's a place near me that brakes vauxhalls and they have a few 1.3 Cdtis in taking my pump of in morning and going to try match it up 50 quid they want for a pump but think it's a good place to start!
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Old 19-03-2014   #8
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Re: 1.3 Multijet will starting issue! Confusing one!!

It might only be a leaking washer, seems a bit drastic to get a whole pump if it's only a 20p part!!
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Old 19-03-2014   #9
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Re: 1.3 Multijet will starting issue! Confusing one!!

Iv checked washers and leak seems to be bottom of pump but I'm just about to take it off so I'll have a good look at it. Honestly just desperate to get it on road
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Old 19-03-2014   #10
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Re: 1.3 Multijet will starting issue! Confusing one!!

Well changed washers new pump new pipes etc no difference, a pal thinks it's ecu but why would it start of ez start if it was!
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Old 19-03-2014   #11
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Re: 1.3 Multijet will starting issue! Confusing one!!

Also spoke to mechanic that used to maintain van so far it's had new injectors new crank and cam sensor new fuel rail with all sensors and other bits n bobs to try solve this issue
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Old 19-03-2014   #12
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Re: 1.3 Multijet will starting issue! Confusing one!!

Quote Originally Posted by mikedoblo View Post
Also spoke to mechanic that used to maintain van so far it's had new injectors new crank and cam sensor new fuel rail with all sensors and other bits n bobs to try solve this issue
Sounds like an injector / injectors loosing pressure to me. But of course could be wrong.

regards

Mal
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Old 19-03-2014   #13
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Re: 1.3 Multijet will starting issue! Confusing one!!

Litterally just had a leak of test done and all injectors performing. ;(
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Old 19-03-2014   #14
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Re: 1.3 Multijet will starting issue! Confusing one!!

I feel your frustration

Mates van wasn't getting power to the tank pump and it turned out something was unplugged.

Yours sounds more electrical if it starts one minute and not the next.

I would be thinking sensor.

Have the cam sensor & crank sensor checked. My thoughts are with the cam sensor....
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Old 19-03-2014   #15
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Re: 1.3 Multijet will starting issue! Confusing one!!

According to mechanic that maintained it he changed everything trying to chase problem, got down to pump in tank or ecu. Although tank in pump is working. It's frustrating that it starts straight away on e z start !
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