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Model specific boards => Golf mk3 => Topic started by: Shady Pioneer on 22 June 2011, 19:20

Title: Cutting out when cold
Post by: Shady Pioneer on 22 June 2011, 19:20
It's happening more frequently now, I didn't think much of it at first and assumed it would go away lol! It mainly happens when it's cold (when the weather is cold mainly) but will only do it once and run fine the rest of the duration it's on.

I'm not sure what to check, cheap fixes first really lol!
Title: Re: Cutting out when cold
Post by: tweed on 22 June 2011, 19:23
temp sensor.
Title: Re: Cutting out when cold
Post by: Wayne on 22 June 2011, 20:39
Is throttle body clean
Title: Re: Cutting out when cold
Post by: Len on 23 June 2011, 09:47
Just get Chelsea to breathe on it!
Title: Re: Cutting out when cold
Post by: AudiA8Quattro on 23 June 2011, 09:54
Have you got VAG com? if not buy it, its worth having.
ECU coolant temp sender would be my first stop, but also as Wayne said, get the throttle body off and give it a good clean(get a new gasket also).
Title: Re: Cutting out when cold
Post by: Len on 23 June 2011, 11:13
Just get Chelsea to breathe on it!


My apologies for spelling her name wrong! :rolleyes: :tongue:
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 30 June 2011, 19:45
I have a new temp sensor. Can't for the life of me find instructions to change it or where the thing is in the first place. Any help? I don't have to flush the coolant system do I? I've got the ECU sensor.
Title: Re: Cutting out when cold
Post by: thai-wronghorse on 30 June 2011, 21:20
It's an absolute doddle to change the temp sensor, all you have to do is disconnect the wiring on it and remove the c-clip that holds it into place on top of the black plastic coolant flange on the front of the block above the oil filter. You should be able to recognise it from its yellow plastic collar.
Title: Re: Cutting out when cold
Post by: AudiA8Quattro on 30 June 2011, 21:47
Just make sure you do it when the coolant is cold  :grin:
Leave it overnight if you can, otherwise remove the expansion tank cap to release any pressure in the system.
Title: Re: Cutting out when cold
Post by: Adam on 30 June 2011, 22:07
Bring it round....
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 05 July 2011, 23:51
Changed the temp sensor and no joy, what now? Throttle body was cleaned about 2 months ago.
Title: Re: Cutting out when cold
Post by: Len on 06 July 2011, 08:58
Have you checked the sensor up on the side of the throttle body?
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 06 July 2011, 09:41
Have you checked the sensor up on the side of the throttle body?

No, should I check it or replace it? What sensor is it?
Title: Re: Cutting out when cold
Post by: Len on 06 July 2011, 11:06
Not sure myself what it is! But it does have a throttle stop on it! So may have some bearing on your problem.
Title: Re: Cutting out when cold
Post by: AudiA8Quattro on 06 July 2011, 11:15
Try changing the fuel pump and ecu relays.
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 06 July 2011, 12:35
What number are these relays? Are get some a stealer. I hate this, once it gets going it's fine, mine you it cut out after getting fuel last night which annoyed me, an S3 almost went into the back of me.
Title: Re: Cutting out when cold
Post by: AudiA8Quattro on 06 July 2011, 12:42
http://vwpolo2000.proboards.com/index.cgi?board=howto1&action=display&thread=132
Title: Re: Cutting out when cold
Post by: MK3 Menace on 06 July 2011, 12:49
Mine did this and I replaced Relay 30 and it's been fine since.

Make sure you get a proper one from the stealers, not a lot really of cash really.
Title: Re: Cutting out when cold
Post by: Len on 06 July 2011, 12:52
I thought Shady knew about the Relays! One of THE most common Mk3 faults! :rolleyes:
Title: Re: Cutting out when cold
Post by: trog_nfs on 06 July 2011, 13:23
I thought Shady knew about the Relays! One of THE most common Mk3 faults! :rolleyes:

It is quite hilarious that the mk3 moderator is always posting about the most common problems  :grin: :grin:
Title: Re: Cutting out when cold
Post by: thai-wronghorse on 06 July 2011, 22:58
Ain't it just.  :grin:
Title: Re: Cutting out when cold
Post by: Bellend on 06 July 2011, 23:32
Moderator of the forum, not an expert. :rolleyes:

Does a good job so leave it.
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 06 July 2011, 23:50
Moderator of the forum, not an expert. :rolleyes:

Does a good job so leave it.

What you brown nosing for?  :grin: :kiss:

I thought Shady knew about the Relays! One of THE most common Mk3 faults! :rolleyes:

It is quite hilarious that the mk3 moderator is always posting about the most common problems  :grin: :grin:

Feck off.  :grin:

I know I ask about problems, but it shows I'm just like you lot, a normal.  :laugh: Thank for all the advice so far, gonna ring the stealers tomorrow, get them to order me those two relays.
Title: Re: Cutting out when cold
Post by: reptiles nd fishin on 07 July 2011, 00:01
mines was also cutting out when cold, i just moved the throtle cable back one notch and all is fine now.
Title: Re: Cutting out when cold
Post by: Len on 08 July 2011, 09:02
mines was also cutting out when cold, i just moved the throtle cable back one notch and all is fine now.

So what engine revs you got at tick over then?
Title: Re: Cutting out when cold
Post by: reptiles nd fishin on 08 July 2011, 11:14
When its cold and just starts i get mayby 1200 rpm for 30-40 seconds then it drops to around 950 rpm but only when its cold. if i stop the car and start it again before it cools right down it starts at around 950 rpm.
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 08 July 2011, 18:51
I've now found that is only happens under braking.  :undecided:
Title: Re: Cutting out when cold
Post by: Adam on 08 July 2011, 19:06
Vacuum line from manifold to the break servo?
Title: Re: Cutting out when cold
Post by: Wayne on 08 July 2011, 19:15
Vacuum line from manifold to the break servo?

This or a really soft engine mount and you pulling something.
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 10 July 2011, 19:18
What hose is it to the brake servo?
Title: Re: Cutting out when cold
Post by: Len on 11 July 2011, 20:55
Find the brake servo first! Its a round disc but about 75mm thick fixed to the bulkhead, then see what small hose is attached and trace it back from there!

Simples! :wink:
Title: Re: Cutting out when cold
Post by: Adam on 12 July 2011, 23:48
Well that took me all of 20seconds to find the problem.

Shady, you need to open your eyes haha.  :lipsrsealed:
Title: Re: Cutting out when cold
Post by: Len on 13 July 2011, 08:54
C'mon spill!!!
Title: Re: Cutting out when cold
Post by: AudiA8Quattro on 13 July 2011, 09:27
What was it?
Title: Re: Cutting out when cold
Post by: VR6_Wherry on 13 July 2011, 11:36
Why am i not suprised!!  :grin:

Kirk failing again?...
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 13 July 2011, 12:16
I don't know how everything works! Lol! It looks to be the brake servo hose, I'm gonna test it later hopefully and check.

Whilst round Adam's last night we plugged it into VAG-COM and no faults found. :cool:
Title: Re: Cutting out when cold
Post by: VR6_Wherry on 13 July 2011, 13:03
I don't know how everything works! Lol!

That leaves the impression that you know how some things work, you don't!  :grin: :kiss:
Title: Re: Cutting out when cold
Post by: Len on 13 July 2011, 13:06
It gets boring poking fun at Shady!

Well only a bit sometimes! :grin:

Shady you wazzock! :rolleyes:
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 13 July 2011, 13:24
Okay so checked the brake servo and there's nothing wrong with it! :undecided: I'm lost now as I have no idea what it is :(
Title: Re: Cutting out when cold
Post by: MK3GTI_16Valve on 14 July 2011, 00:23
As per Len switch on side of throttle body...
Title: Re: Cutting out when cold
Post by: Adam on 14 July 2011, 19:05
Did you replace the pipe?
Title: Re: Cutting out when cold
Post by: Shady Pioneer on 14 July 2011, 20:12
Did you replace the pipe?

There's no sign of leaking so I didn't.