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Model specific boards => Golf mk4 => Topic started by: johnson6672 on 25 May 2011, 18:06

Title: Car won't start
Post by: johnson6672 on 25 May 2011, 18:06

Having a drama, my car won't staart, doesn't do it all the time, it will turn over but won't fire, but generally if left for 20 mins it will then start, anyone got any ideas?

Title: Re: Car won't start
Post by: steve113 on 25 May 2011, 18:08

is there a spark or any fuel getting through ?

Title: Re: Car won't start
Post by: johnson6672 on 25 May 2011, 18:10

Haven't checked either yet as normally it will then start and i am never in a position to check it when it does then when i would be in a position to check it it doesn't do it!!!!

Title: Re: Car won't start
Post by: steve113 on 25 May 2011, 18:34

could even be an imobliser fault

Title: Re: Car won't start
Post by: richw911 on 25 May 2011, 19:00

Fuel pump relay  :undecided:

Title: Re: Car won't start
Post by: johnson6672 on 25 May 2011, 19:18

Thats what i was thinking rich, will that throw a code up?

Title: Re: Car won't start
Post by: richw911 on 25 May 2011, 19:31

Quote from: johnson6672 on 25 May 2011, 19:18

Thats what i was thinking rich, will that throw a code up?

I doubt it  :smiley:

Can you hear the pump prime when you open the drives door?

http://www.golfgtiforum.co.uk/index.php?topic=87372.0

Title: Re: Car won't start
Post by: johnson6672 on 25 May 2011, 19:32

Yeah and you can hear it when you switch ignition on  :undecided:

Title: Re: Car won't start
Post by: richw911 on 25 May 2011, 19:34

Quote from: johnson6672 on 25 May 2011, 19:32

Yeah and you can hear it when you switch ignition on  :undecided:

Even when it wont start?

Title: Re: Car won't start
Post by: johnson6672 on 25 May 2011, 19:37

yep, have tried 4 times now to start it, leaving half an hour each time but still no joy so thinking either something ignition related maybe.
I really need it to happen when i am at work and have all my tools, although i might sort out a few tools to go in the car for when it happens next time so i can check for spark, fuel etc.

Title: Re: Car won't start
Post by: richw911 on 25 May 2011, 19:42

Quote from: johnson6672 on 25 May 2011, 19:37

yep, have tried 4 times now to start it, leaving half an hour each time but still no joy so thinking either something ignition related maybe.
I really need it to happen when i am at work and have all my tools, although i might sort out a few tools to go in the car for when it happens next time so i can check for spark, fuel etc.

Crank sensor?

Title: Re: Car won't start
Post by: johnson6672 on 25 May 2011, 19:45

I am going to try and scan it tomorrow but vag com won't work on my laptop so going to try it on my mates who has xp on his not vista as i don't think it has ever worked on this one.

Title: Re: Car won't start
Post by: johnson6672 on 25 May 2011, 20:12

Its bloody started now  :angry:

Title: Re: Car won't start
Post by: Rico_GTi on 26 May 2011, 00:46

Poss coolant temp sensor? Another common problem but an easy fix if it is the culprit.
Mine used to intermittently not start/turn over but not fire, I noticed eventually it was happening on warm starts and not cold, still intermittently though, and quite a strong smell of fuel aswell. Left for 15 mins or so and all would be fine!(not cool when you're stopping for petrol :angry: )
Anyway, faulty temp sensor was telling the ecu the engine was cold when warm so it overfuelled and flooded. New sensor and it's behaved for 18 months now. *touches wood*
Good luck getting it sorted though whatever it is  :undecided: