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vw sharan non starter (Read 8337 times)
f06352301
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vw sharan non starter
18.07.06 at 12:50:06
 
Hello everyone

i need some help with a vw sharan

until a few days ago it would start and then just cut off after some time but now it just dose not start.
when it was cutting off there was no spark as there is no spark now

do you think it could be the ecu at fault or am i missing something
any help would be appreciated

Thanks in advance
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rhubarb
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Re: vw sharan non starter
Reply #1 - 18.07.06 at 13:09:05
 
f06352301 wrote on 18.07.06 at 12:50:06:
Hello everyone

i need some help with a vw sharan

until a few days ago it would start and then just cut off after some time but now it just dose not start.
when it was cutting off there was no spark as there is no spark now

do you think it could be the ecu at fault or am i missing something
any help would be appreciated

Thanks in advance



Next time it cuts out, check for a spark and fuel...If you have neither then the crank sensor is faulty...
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motman
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Re: vw sharan non starter
Reply #2 - 18.07.06 at 15:31:44
 
Relay number 30, it powers the ECU up and is very prone to failure, typical symptoms are intermitant non-start and sometimes a feeling of miss-fire. Its burried deep within  the fuse box and is a bit fiddly to change but its less than twenty quid.
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motorwise
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Re: vw sharan non starter
Reply #3 - 18.07.06 at 15:45:53
 
motman wrote on 18.07.06 at 15:31:44:
Relay number 30, it powers the ECU up and is very prone to failure, typical symptoms are intermitant non-start and sometimes a feeling of miss-fire. Its burried deep within  the fuse box and is a bit fiddly to change but its less than twenty quid.



beat me this time  Wink
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motman
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Re: vw sharan non starter
Reply #4 - 21.07.06 at 12:13:51
 
motorwise wrote on 18.07.06 at 15:45:53:
motman wrote on 18.07.06 at 15:31:44:
Relay number 30, it powers the ECU up and is very prone to failure, typical symptoms are intermitant non-start and sometimes a feeling of miss-fire. Its burried deep within  the fuse box and is a bit fiddly to change but its less than twenty quid.



beat me this time  Wink

You'll get me next time Wink Grin
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Murdoch
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Re: vw sharan non starter
Reply #5 - 21.07.06 at 22:50:32
 
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.
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motorwise
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Re: vw sharan non starter
Reply #6 - 21.07.06 at 22:57:46
 
Murdoch wrote on 21.07.06 at 22:50:32:
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.



if you know why don't you tell us how to test it then?
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horse
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Re: vw sharan non starter
Reply #7 - 21.07.06 at 23:16:53
 
Murdoch wrote on 21.07.06 at 22:50:32:
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.

surely then the answer to every question would be take it to main dealer ? soon get bored of writing that  Undecided
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chunky
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Re: vw sharan non starter
Reply #8 - 21.07.06 at 23:18:32
 
Murdoch wrote on 21.07.06 at 22:50:32:
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.


put the test sequences up then smart arse!
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motman
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Re: vw sharan non starter
Reply #9 - 22.07.06 at 00:49:09
 
Murdoch wrote on 21.07.06 at 22:50:32:
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.

No guessing at all and I'm certainly not a "bloke down the pub",  neither are the other techs who have offered help on this thread. I've been a tech for nearly twenty years and quite frankly find your post insulting. Relay 30 must be the biggest VW stopper but you'd know that already wouldn't you? I would suggest that you find relay number 30 and insert it sideways were the sun does not shine, I'm sure it will turn out to be one of the happiest days of your life.
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motorwise
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Re: vw sharan non starter
Reply #10 - 22.07.06 at 00:58:43
 
Chunky wrote on 21.07.06 at 23:18:32:
Murdoch wrote on 21.07.06 at 22:50:32:
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.


put the test sequences up then smart arse!



still waiting
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motman
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Re: vw sharan non starter
Reply #11 - 22.07.06 at 01:01:51
 
motorwise wrote on 22.07.06 at 00:58:43:
Chunky wrote on 21.07.06 at 23:18:32:
Murdoch wrote on 21.07.06 at 22:50:32:
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.


put the test sequences up then smart arse!



still waiting

Hmm, Diplomacy, perhaps I'll try that one day Wink
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rhubarb
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Re: vw sharan non starter
Reply #12 - 22.07.06 at 01:04:24
 
I can't be bothered to argue with the plonker, he obviously knows everything....

What I think is strange, is you get called all sorts of crap, and yet all we are doing is trying to help, and for FREE....
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motman
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Re: vw sharan non starter
Reply #13 - 22.07.06 at 19:24:27
 
Quote:
What I think is strange, is you get called all sorts of crap, and yet all we are doing is trying to help, and for FREE....

Quite right, anyone coming into my workshops and asking me how to fix a Sharan will be told to book it in (where it will recieve some "measurement and analysis") or they will be shown the door!!!
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Re: vw sharan non starter
Reply #14 - 22.07.06 at 19:26:34
 
motman wrote on 22.07.06 at 00:49:09:
Murdoch wrote on 21.07.06 at 22:50:32:
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.

No guessing at all and I'm certainly not a "bloke down the pub",  neither are the other techs who have offered help on this thread. I've been a tech for nearly twenty years and quite frankly find your post insulting. Relay 30 must be the biggest VW stopper but you'd know that already wouldn't you? I would suggest that you find relay number 30 and insert it sideways were the sun does not shine, I'm sure it will turn out to be one of the happiest days of your life.



Well I heard your a bit tight when it comes to your round!!

Motorwise, Motman and Rhubarb are highly respected members of this forum and certainly don't justify the title of Pub gossipers! Perhaps if the suggestions that they made were inherrantly wrong Mr Murdoch then it would justify your reply, However I think that the diagnosis that the members made were right, The non-start coulod have been either of the answers that they gave!!
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motman
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Re: vw sharan non starter
Reply #15 - 22.07.06 at 19:29:49
 
Beetlefan the 1st wrote on 22.07.06 at 19:26:34:
Well I heard your a bit tight when it comes to your round!!


I always seem to need to the toilet when theres a round to be bought Wink Wink Grin
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horse
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Re: vw sharan non starter
Reply #16 - 22.07.06 at 19:42:55
 
whats that squeaking noise ? Grin Wink
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motorwise
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Re: vw sharan non starter
Reply #17 - 23.07.06 at 10:23:00
 
waiting...................
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rhubarb
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Re: vw sharan non starter
Reply #18 - 23.07.06 at 10:46:25
 
motorwise wrote on 23.07.06 at 10:23:00:
waiting...................



Don't hold your breath Cheesy Wink
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motorwise
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Re: vw sharan non starter
Reply #19 - 23.07.06 at 12:01:28
 
Murdoch wrote on 21.07.06 at 22:50:32:
Hey Guy's

I've been watching for a while, and it seems that guessing root cause is the order of the day. Check for fuel and spark one of you said, but then what - throw a crank sensor at it! Next lets guess at a relay. Agreed, both are common causes, but so is the coil, so is the key/immobiliser etc, etc.

How about some measurement and analysis? Roll Eyes

Car won't start - let's try and work out why, rather than substitiue/relpace our way to a solution.

It seems that 'pub bloke' logic is the order of the day here, you know "well a bloke down the pub said it is likely to be .................".

A fool proof mantra for quick accurate diagnostics is to test and not guess.

Cheers


Murdoch.



you've been watching this site for nearly three years and the best you can come up with is this - have you really not thought of anything more constructive to say in almost three whole years - please tell me you've got more to offer - I'm sure you have - please don't prove me wrong

you could start by helping the thread starter (who probably has no access to a 'scope or scanner possibly not a even multimeter) how to go about addressing his non start - we've given him a couple of avenues to explore based on our years of experience and the fact that we deal with non starts on a variety of vehicles on a daily basis

without seeing the car it's difficult of course but I for one would be very interested to see what you would do next to get him going - for instance how would you (personally) go about about testing the immobiliser for instance
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