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Model specific boards => Golf mk2 => Topic started by: storky on 03 February 2011, 16:35

Title: Hard to start when hot
Post by: storky on 03 February 2011, 16:35
Hi all,

Couldnt find an answer in the search section. Got a 1991 8v GTi. Starts fine from cold but takes ages to start when engine is warm. It did this on both the old and new engine.

Any ideas??

Thanks

Jon
Title: Re: Hard to start when hot
Post by: the_stink on 03 February 2011, 16:36
Starter motor?

mine did a similar thing would start from cold but then the starter motor would seize when hot had to replace it with a new bosch one and never had any issues since  :smiley:
Title: Re: Hard to start when hot
Post by: mk2bal on 03 February 2011, 16:55
Leaking injector/injectors?
Could be flooding the engine if they weep or drip..
Title: Re: Hard to start when hot
Post by: tech1889 on 03 February 2011, 17:25
the above sounds unlikely to me it happens on a lot of cars and tends to be start motors wearing out..  not saying the injectors cant leak..
Title: Re: Hard to start when hot
Post by: storky on 03 February 2011, 17:49
Ok thanks guys. Not a huge problem, just seems to take a while to fire when hot. A little dab of the throttle usually helps it?
Title: Re: Hard to start when hot
Post by: emery1990 on 03 February 2011, 18:38
Mine done it all the time! used to get out at petrol stations and whack my starter with my wheel wrench! was a bit embarrassing! 
Title: Re: Hard to start when hot
Post by: mk2bal on 04 February 2011, 13:21
Tech- it depends what he means by hard 2 start!! Slow turning starter when hot-yeah fair enuff prob the starter, but if it spins at the same speed but won't start then I'd say its the injectors/fuelling issues..
Title: Re: Hard to start when hot
Post by: Mr Blue on 04 February 2011, 15:17
First start with the a new blue coolant temp sensor. Approx £15 from VW.
Title: Re: Hard to start when hot
Post by: Alec on 05 February 2011, 03:35
Tech- it depends what he means by hard 2 start!! Slow turning starter when hot-yeah fair enuff prob the starter, but if it spins at the same speed but won't start then I'd say its the injectors/fuelling issues..

Yep, mine was the same at the same time as my idle issues started. Would start turn of the key when cold and once warm if I stopped at the shops and went to start it again it was cranking just fine but took ages to start again, when it did cough a bit I had to coax it into life with dabs of throttle. Revs would usually hunt up to about 1500 - 2000rpm when it got running again aswell until being revved or driven through first gear.

Replacing the blue temp sensor for a genuine VAG item did seem to cure the hot start problem, but not the idle issue  :sad:
Title: Re: Hard to start when hot
Post by: mr mk2 on 06 February 2011, 09:21
i had a similar problem with my first mk2 if i remember rightly it was a fuel problem too lean
Title: Re: Hard to start when hot
Post by: mr mk2 on 06 February 2011, 09:24
no sorry it was my mk2 xr2 but could apply to all motors realy
Title: Re: Hard to start when hot
Post by: storky on 06 February 2011, 09:28
Alec - sounds identical similar to mine.

Think i'll start with the coolant temp sensor. This is the part yeah, http://www.eurocarparts.com/engine-management-sensor ?

I did have issues with the idle, a replacement isv solved that.

Thanks for the advice guys.
Title: Re: Hard to start when hot
Post by: Alec on 06 February 2011, 15:06
Alec - sounds identical similar to mine.

Think i'll start with the coolant temp sensor. This is the part yeah, http://www.eurocarparts.com/engine-management-sensor ?

I did have issues with the idle, a replacement isv solved that.

Thanks for the advice guys.


Not sure mate no part numbers popped up in that link. I'd go to VW for the part rather than GSF or eurocarparts though. I don't have ETKA anymore so unfortunately I can't dig out the part number for you.
Dealers should still be open now though  :wink:
Title: Re: Hard to start when hot
Post by: Alec on 06 February 2011, 15:13
Found it on another thread

025 906 041 A
Title: Re: Hard to start when hot
Post by: storky on 06 February 2011, 15:47
Found it on another thread

025 906 041 A

Great cheers mate
Title: Re: Hard to start when hot
Post by: Alec on 06 February 2011, 16:46
Found it on another thread

025 906 041 A

Great cheers mate

No probs, this thread http://www.golfgtiforum.co.uk/index.php?topic=33909.0  is good for part numbers  :wink: