Help motorhome won't start.

Dougie

Free Member
Feb 20, 2017
16
1
York
Funster No
47,408
MH
C class
Exp
Since 2008
went to start my motorhome last week, it was a freezing cold morning. The van turned over but would not start. Called breakdown they spent 2 hours to no avail. Had van recovered to a garage specialist in commercial viecles. They have tried everything no problem fuel injectors etc. Nothing showing on diagnostic. Checked all compression all sensors still nothing. Any suggestions it's a autotrail tracker 2015 on a fiat. Help please.
 

Paul an Jane MK

LIFE MEMBER
Apr 20, 2016
435
459
Milton Keynes
Funster No
42,608
MH
Elddis Encore 255
Exp
enjoyed the freedom over the last couple of years but still Wish we could have got away more often
Immobiliser?

Friend runs a motorbike shop, majority of his breakdowns are immobiliser related.
 
Feb 15, 2014
520
712
cambridgeshire
Funster No
30,113
MH
Bessacar E450
Exp
3 years
can you try a different key could be something to do with immobiliser, would try a crank sensor as well

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OP
Dougie

Dougie

Free Member
Feb 20, 2017
16
1
York
Funster No
47,408
MH
C class
Exp
Since 2008
Yes tried different key, and tried crank sensor.
 
OP
Dougie

Dougie

Free Member
Feb 20, 2017
16
1
York
Funster No
47,408
MH
C class
Exp
Since 2008
Yes they have checked pump, and made sure injectors opening. We have not had a second of problem, up to that morning.
When I went to start the van a warning saying check diesel filter came up. They say they have checked all this and made sure no air in system or water.

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Silver-Fox

LIFE MEMBER
Sep 5, 2014
7,117
15,709
Cheltenham Spa
Funster No
33,201
MH
Rapido
Exp
im a not so newbie
When you say checked pump, is that in checking fuel is being pushed to the injectors?

If you have compression in the cylinders and fuel being injected in along with engine turning over she should run.
 
OP
Dougie

Dougie

Free Member
Feb 20, 2017
16
1
York
Funster No
47,408
MH
C class
Exp
Since 2008
That's what they said. The garage is very respected do work on council vehicles.
It's a strange one.
 

androidGB

Free Member
Dec 28, 2009
363
487
Bristol
Funster No
9,737
MH
C Class
Exp
Since 2001
Don't wish to appear rude, but it might be better to take it to a different garage.

They have the vehicle, and I would hope would be in a better position to diagnose the problem, from us lot at a distance.

Andrew

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Silver-Fox

LIFE MEMBER
Sep 5, 2014
7,117
15,709
Cheltenham Spa
Funster No
33,201
MH
Rapido
Exp
im a not so newbie
The thing is you can check the pump is pressurising but if you have a blockage in the positive line then she won't start.
 
OP
Dougie

Dougie

Free Member
Feb 20, 2017
16
1
York
Funster No
47,408
MH
C class
Exp
Since 2008
Yes I am beginning to think this. Just thought somebody may have had a similar problem.
 
Feb 15, 2014
520
712
cambridgeshire
Funster No
30,113
MH
Bessacar E450
Exp
3 years
there scanner should show pressure in fuel rail, there should be a relief valve which might stay open if it has overpressurised and stop rail from pressurising

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OP
Dougie

Dougie

Free Member
Feb 20, 2017
16
1
York
Funster No
47,408
MH
C class
Exp
Since 2008
Thanks for all your info. You would think they have checked all these things. They say thay will look at ecu on Monday, and make sure timing belt has not slipped. Thanks everyone

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Dec 12, 2010
4,018
12,877
Cumbria
Funster No
14,651
MH
C Class
Exp
since 2011
there scanner should show pressure in fuel rail, there should be a relief valve which might stay open if it has overpressurised and stop rail from pressurising

I'm sure somebody just posted about this pressure switch fault on here quite recently, seemed like a quick and relatively cheap fix. Maybe just ask the garage if they've checked it ?
 
OP
Dougie

Dougie

Free Member
Feb 20, 2017
16
1
York
Funster No
47,408
MH
C class
Exp
Since 2008
I will check this with them in the morning. Put this on a fiat forum and somebody also suggested this. Thank you.
 

soreeyes

Free Member
Feb 21, 2012
351
136
Dorset
Funster No
19,903
MH
Sunlight T69L 2017
Exp
im a newbie
Is it still under warranty ? If so as said I would let Fiat recover the vehicle .

I have had problems on new vehicles with strange results which was a hair line like crack in a filter body .
 
OP
Dougie

Dougie

Free Member
Feb 20, 2017
16
1
York
Funster No
47,408
MH
C class
Exp
Since 2008
Don't think they have changed the fuel filter, maybe just worth a try. Seems most people think it's a fuel problem.

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