Wont start when hot

[Stoner05]

Hi we bought a hobby 750 tag fiat Ducato 2003 last October 2019, absolutely love it. Upgraded from campervan. Turns on the key first time, we drove from Stafford to Weston Super Mare, booked in reception on camp it wouldnt start took 20 minutes to fire up. It sounds like no fuel. Then the day before the lockdown we drove from Wiltshire to Stafford on M6 , big tailback I switched off , took 20 minutes to start. Last week just getting cobwebs out of her same thing. I spoke to my garage who services her and he said if it is not happening all the time don't waste money on looking for it.has anyone else had a problem like this cheers

 

[Odd-no-more]

I'm not sure what could cause that, it does sound like a fuel problem, possibly a faulty valve/ solenoid best advice I have is to get the breakdown service out, and hope they arrive in good time. The problem with intermittent faults is you can only find the fault when it's there

 

[Happy Jim]

I had exactly those symptoms on a Merc V6 petrol, turned out to be a common failing symptom of the crank angle sensor failing when hot (perfect when cold though).

No idea if that’s relevant to your diesel though

Jim

 

[Carolyn and Kev]

Hi we bought a hobby 750 tag fiat Ducato 2003 last October 2019, absolutely love it. Upgraded from campervan. Turns on the key first time, we drove from Stafford to Weston Super Mare, booked in reception on camp it wouldnt start took 20 minutes to fire up. It sounds like no fuel. Then the day before the lockdown we drove from Wiltshire to Stafford on M6 , big tailback I switched off , took 20 minutes to start. Last week just getting cobwebs out of her same thing. I spoke to my garage who services her and he said if it is not happening all the time don't waste money on looking for it.has anyone else had a problem like this cheers

Hi there...

You dont really have a choice to be honest? You will be searching for ever trying to work out what it is . It may sound like a diesel fault but until you get it hooked up to a diagnostics laptop...you can be changing anything and everything. You may not be getting a fault on the diesel at all, just a protection circuit switching on/off preventing fire up when the engine is hot. Basically sending a signal to a sensor to shut down or open to prevent over heating .

Suggest you call in a mechanic (Mobile) and get him to hook it up to his laptop. It wont go away until resolved you can be sure of that, so for around £45 it would be well worth it

Regards Kev

 

[Sapper520]

Many years ago I had a similar problem with an old truck. Would start fine from cold but once warm, if you switch off, wouldn’t start again.

Turned out to be debris in the fuel system. Dirt particulars would cause a blockage. As the engine cooled down, the dirt would settle back down.

Could you have a contaminated fuel system?

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[chaser]

It is 2003 though , shouldn't have a lot of electrical gizmos to go wrong, sounds like air getting in somewhere then having to bleed itsself to go again to me, afraid I can't claim it is though but that's what I would be looking for.
But then again, second thoughts , if you leave it till it's cold and then starts , seems to put the kybosh on my thoughts.
Sorry just rambling, but we have tractors that do this sort of thing, and it useuly comes down to air in diesel some road.

 

[chaser]

Many years ago I had a similar problem with an old truck. Would start fine from cold but once warm, if you switch off, wouldn’t start again.

Turned out to be debris in the fuel system. Dirt particulars would cause a blockage. As the engine cooled down, the dirt would settle back down.

Could you have a contaminated fuel system?

Yeah that's a common one.

 

[chaser]

Hope he's not a one post wonder
Could be interesting.

 

[Stoner05]

Hi there...

You dont really have a choice to be honest? You will be searching for ever trying to work out what it is . It may sound like a diesel fault but until you get it hooked up to a diagnostics laptop...you can be changing anything and everything. You may not be getting a fault on the diesel at all, just a protection circuit switching on/off preventing fire up when the engine is hot. Basically sending a signal to a sensor to shut down or open to prevent over heating .

Suggest you call in a mechanic (Mobile) and get him to hook it up to his laptop. It wont go away until resolved you can be sure of that, so for around £45 it would be well worth it

Regards Kev

Thanks keV sounds like a option I will let you know how it turns out

 

[Stoner05]

I'm not sure what could cause that, it does sound like a fuel problem, possibly a faulty valve/ solenoid best advice I have is to get the breakdown service out, and hope they arrive in good time. The problem with intermittent faults is you can only find the fault when it's there

Is only happened 3 times Feb, march and july

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[bigtree]

Welcome to Fun.

 

[Portland]

I had the same with a 2006 fiat 3ltr I found it would start if I kept the key turned and no throttle. Like yours it was perfect from cold, I never found the cause but suspected hot diesel causing airlock by being boiled in the system, check the fuel lines are not near to exhaust system. Incidentally this was a problem with Cummins engined ERF trucks at one time

 

[Stoner05]

Thanks for the great replies ,howdy nice to meet some of you campers. Hopefully I will get a fix. , Our first holiday after the lockdown will damage barton , woolacoombe

 

[Carolyn and Kev]

Love it at Damage Barton. Even if the weather is naff!

Kev and Carolyn

 

[chaser]

Thanks for the great replies ,howdy nice to meet some of you campers. Hopefully I will get a fix. , Our first holiday after the lockdown will damage barton , woolacoombe

Cheers mate, glad you have come back, and I second Portland advice

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[Stoner05]

Love it at Damage Barton. Even if the weather is naff!

Kev and Carolyn

We found it 2018 beautiful views of the sea, great walks we fell in love with the place straight away

 

[ambulancekidd]

Me thinks I'd buy a good quality OBD2 reader, stabbing in the dark is expensive & often fruitless.

 

[tacr2man]

If it is a common rail diesel , may be low fuel pressure sensor giving low reading when hot . The sensor stops engine running with insufficient fuel supply to prevent damage to hp pump . OBD reader can be used for live data to see if readings when cold are close to reading when hot .

 

[Lanerboy]

First thing i would change is the crank sensor, common for the problems you are having starts ok from cold but just turns over when warm

 

[chaser]

First thing i would change is the crank sensor, common for the problems you are having starts ok from cold but just turns over when warm

First thing I'd do, if it hasn't been done is change the diesel filter

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[Lenny HB]

Worth checking all the inlet hoses on the air filter, intercooler etc., for tightness of clips or hose splits.
Had Omega with the BMW 6 pot, started from cold fine a right pig when hot. Took ½ a turn on the jubilee clip on the intercooler hose to sort it.

 

[Carolyn and Kev]

Im guessing here but most of the answers being given are if you have the time and money to ..........Faff about!
Dont get me wrong guys but ...a laptop or OBD reader will point the direction required. Dont change this and that with out knowing what it is you are doing? Surely ....that is common sense?
Hey if you guys think you can do this stuff with out a bit of Tech.....fair play to you all and I will bow down in front of you so as you can laugh at my inferior knowledge.
I am but an amoeba at the end of the day ! A minuscule cell in a pond that is blooming huge!
SO what do I know? Enough to think that taking bits off here and there is the wrong way forward.

Just a view from an Amoeba! Nothing More!

Kev

 

[TheBig1]

we are talking old tech here, a 2003 x244, so likely something basic like the fuel filter. Far less sensors to worry about

The other thing that springs to mind is the old chestnut of the immobiliser on the x244. the ring in the steering column being out of location or cracked will give similar symptoms. till it fails completely, leaving you stranded

 

[chaser]

Im guessing here but most of the answers being given are if you have the time and money to ..........Faff about!
Dont get me wrong guys but ...a laptop or OBD reader will point the direction required. Dont change this and that with out knowing what it is you are doing? Surely ....that is common sense?
Hey if you guys think you can do this stuff with out a bit of Tech.....fair play to you all and I will bow down in front of you so as you can laugh at my inferior knowledge.
I am but an amoeba at the end of the day ! A minuscule cell in a pond that is blooming huge!
SO what do I know? Enough to think that taking bits off here and there is the wrong way forward.

Just a view from an Amoeba! Nothing More!

Kev

Not knocking checking with a obd but the thing I am suggesting also will cost very little and want checking anyway such as diesel filter if it hasn't been done lately and all the joints on the pipes tightening.

 

[Larby]

Get diagnostics check from an independent garage (not a main stealer!)
My money is crank sensor.
Specify Delphi or Bosch, refuse Chinese crap often supplied by national motor factor !

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[sedge]

I had a Ford escort which used to cut out on me with no warning. My first husband in the motor trade always insisted it was the way I drove it. I already knew that obviously cos what it actually meant was I haven't a clue and don't bother me. One day after this had been going on for ages, I was informed I'd have to go to work on the train tomorrow because he needed my car. Yes sir, smart salute.

Next afternoon I get a phone call out of the blue from husband's mate who was an excellent mechanic saying Guess what happened when B was on the way to work this morning? - to which I burst out laughing, and mate said he thought I might 'say' that when he told me - cos he knew B well by this time too. Anyway, they'd been out and rescued it and had now had it engine running hooked up to the Bosch all afternoon, never complained until it ran out of petrol. So, he'd refuel it tomorrow and keep trying in between other jobs. Eventually turned out to be a break in the loom. Amazing how 'the way someone drives' can cause that ...... when they never drive anywhere potholed or iffy, most of its driving time was on A roads.

Intermittent faults always are an absolute B to diagnose.

 

[Carolyn and Kev]

we are talking old tech here, a 2003 x244, so likely something basic like the fuel filter. Far less sensors to worry about

The other thing that springs to mind is the old chestnut of the immobiliser on the x244. the ring in the steering column being out of location or cracked will give similar symptoms. till it fails completely, leaving you stranded

I agree entirely with you but 'Old tech ' still existed from 1998 actually . The OBD reader is the way forward for at least isolating the electrics . From there onwards check what is required but remember what the OP said...Is only happened 3 times Feb, march and July. Just looking outside the box here ...How many miles had been covered in the 3 occasions it failed? When was it last serviced ? If it had not failed in June...why?
Sounds soft I know but ....It really comes across like a electronic issue and not a diesel issue directly. That meaning ....a signal issue or even a sensor fault. Back to the OBD reader then ...Yes?

Kev

 

[TheBig1]

I agree entirely with you but 'Old tech ' still existed from 1998 actually . The OBD reader is the way forward for at least isolating the electrics . From there onwards check what is required but remember what the OP said...Is only happened 3 times Feb, march and July. Just looking outside the box here ...How many miles had been covered in the 3 occasions it failed? When was it last serviced ? If it had not failed in June...why?
Sounds soft I know but ....It really comes across like a electronic issue and not a diesel issue directly. That meaning ....a signal issue or even a sensor fault. Back to the OBD reader then ...Yes?

Kev

Ah but you are forgetting it happened twice in quick succession, then the van was parked for months. First time out it fails again.

 

[Carolyn and Kev]

I dd not pick that up? Ok then diesel could be an issue or at least water on the filter or base of it should I say? Still prefer to check on an OBD reader though. It just clarifies things a little more. Water will show up on the reader as a code so ...would prefer to have a thorough check to be honest. To save the hassle of seeking the 'proverbial'.....needle and all that stuff!



Kev

 

[excel]

Sounds like an intermittent air leak in the diesel line. What happens is when you switch of the fuel is drawn back down the fuel pipe and into the tank. Then when you try to start the engine the fuel then has to be drawn all the way back up the fuel line.could be porous fuel line. Worth a look.

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