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Model specific boards => Golf mk2 => Topic started by: rowlers on 10 August 2005, 16:34

Title: cutting out - again!!!!
Post by: rowlers on 10 August 2005, 16:34

Heres a run down:

When car gets really hot when approaching a junction, changing down gears, the revs plummet really quickly when clutch is pushed in - ONLY DOES IT WHEN IT IS REALLY HOT!!

New Thermostat fitted, new hall sender fitted, plugs, leads, cap and rotor arm fitted.

idle and CO adjusted?

Any ideas?

Its as if something which controls the drop in revs whent he clutch is depressed fails when if gets hot? Is there a sensor or switch that controls the drop in revs whn the clutch is pressed???

Any help appreciated as always!!

Title: Re: cutting out - again!!!!
Post by: Judderi on 10 August 2005, 16:35

Just a guess but maybe its the throttle switch.

Title: Re: cutting out - again!!!!
Post by: Mr Blue on 10 August 2005, 16:42

hows the timing?

Title: Re: cutting out - again!!!!
Post by: rowlers on 10 August 2005, 21:16

as far as I know the timing should be OK, it was done when the hall sender was fitted about 2 months ago.

What does the throttle switch do and where is it?


Cheers

Title: Re: cutting out - again!!!!
Post by: mjamoose on 11 August 2005, 00:26

This may seem strange but try changing the coolant mix   :shocked:.  The reason I say this is I had to run the car on plain water for a while, when the engine got hot, which it did. The revs dropped to about 600. On a few occasions it dropped even further.  Since putting a 50/50 mix in it now idles at about 950.
Try it if u have time.

Title: Re: cutting out - again!!!!
Post by: Judderi on 11 August 2005, 09:46

The throttle switch is belive it or not on the throttle!  :grin: It tells your motor when the throttle is fully closed and tells your engine to idle. To test to see if its working open the throttle by hand and press the little round switch you can see. If the revs drop then its working ok. Or un plug it to see if there is any difference.

(http://img363.imageshack.us/img363/5516/throttleswitch4dz.jpg)

Its the black bit.

Title: Re: cutting out - again!!!!
Post by: GTIrl on 11 August 2005, 13:15

that happened to me once when i ran the tank too low on the red line. when i put in the clutch the car just died, as if the isv wasnt catching the revs.. dont know what this means and probably isnt any help atall.. i'll shut up now :lipsrsealed:

Title: Re: cutting out - again!!!!
Post by: rowlers on 11 August 2005, 18:14

thanks for the info, I'll have a go at changing the water to antifreeze ratio when I get change.
In terms of the throttle switch would this mean it is breaking down under heat?

The isv does catch it sometimes, but the majority of the time it can't cos the revs to drop too low too quickly.

Could the CO have any bearing on this? I tempted to borrow a CO meter from someone and check it myself, cos you can only taker the word of the mechanic that it is set at 2% eh!!

Ta

Title: Re: cutting out - again!!!!
Post by: monzablue16v on 11 August 2005, 18:45

Yup mine did that amongst other things tried everything inc new ISV and waarm up regulators cold start valves etc. Get it Rolling Road tuned at a proper garage dude. Fixed all my little funny problems they drop out a bit over 17 odd years ;)

Title: Re: cutting out - again!!!!
Post by: rowlers on 11 August 2005, 19:44

finding a rolling road around west cumbria is like trying to find rocking horse sh!t!! Then I'd need to find someone who knows VWs!! Not an easy task!

Can the CO drift off during time? Cos it felt spot on when it was first done - even in hot weather!


Cheers

Title: Re: cutting out - again!!!!
Post by: marcogolfo on 12 August 2005, 16:52

from south cumbria here and have a similar problem but only when its cold  :angry:

Title: Re: cutting out - again!!!!
Post by: rowlers on 12 August 2005, 22:25

I was passed today by a rallye G60 today gleaming black an absolute beauty!! Then got to work and noticed it was on the notice baord for sale £5500!!!

Allsorts done to it rolling roaded at 215BHP

P6 POB I thing the reg was if any one know the car!!!

Title: Re: cutting out - again!!!!
Post by: marcogolfo on 15 August 2005, 12:10

I think it's now sold mate, the fella who had it now drives a mint oak green valver

Title: Re: cutting out - again!!!!
Post by: rowlers on 15 August 2005, 17:42

I actuall know the guy, he lives in maryport, he has a full red/black custom leather interior for sales as well as some refurbed 3 piece splits.

He has bought another golf now!!

Title: Re: cutting out - again!!!!
Post by: marcogolfo on 16 August 2005, 11:38

maybe a different fella then. :lipsrsealed:
you going to that show in workington at the end of august?

Title: Re: cutting out - again!!!!
Post by: rowlers on 16 August 2005, 19:52

sounds like it could be a decent day out!! See what pans out - see if I can make it :grin: :grin:

Title: Re: cutting out - again!!!!
Post by: rowlers on 28 August 2005, 15:01

Think I've got to the bottom of it - the cause anyway!

It only cuts out when the radiator fan kicks it, once it goes off it seems to be OK.

Would this mean the fan is drawing too many amps off the battery/alternator at idle? the battery/alternator can't provide enough to keep it ticking over?

Its fine with a few more revs on!!

Or does the ISV (anything else?) need a good clean out - I have rinsed it but not left it soaking overnight.

Any theories???

Title: Re: cutting out - again!!!!
Post by: rowlers on 29 August 2005, 18:00

ANYONE??? :cry: :cry: :cry:

Title: Re: cutting out - again!!!!
Post by: 16valve on 29 August 2005, 19:10

Err ISV? What does that stand for  :embarassed: ?

Mines doing a similiar thing and have now bought all service items etc ...  and new Bosch fuel pump and filter and it still does it,ohh and its had co setting and its still in garage but the very helpful/friendly Manager at Lucas has suggested it maybe the Lift pump in the tank? So thats next i guess? Will let you know how it goes?

Dave

Title: Re: cutting out - again!!!!
Post by: rowlers on 29 August 2005, 19:39

Idle stabilisation valve, its what keeps the idle nice and steady - its in the top front left of the rocker cover as you look at the engine, compensates the idle whe you have the headlamps, heater etc.. running.

I should give it a good clean then I can rule it out!

Title: Re: cutting out - again!!!!
Post by: rowlers on 01 September 2005, 16:41

investigated the radiator fan idea, but can now rule that out.

Next thing I am thinking of is the WUR. If Ileave the electrical connection unplugged it runs great and doesn't strated cutting out as soon, if I plug it back in it start the cutting out malarky after about 7miles or so, is my WUR Knackered?
Is there anything I can do to fix it??

Cheers