Golf cutting out when off throttle once warm! HELP

UncleBensSauce

UncleBensSauce

UncleBensSauce

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13 Aug 2008
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410
Hi All

I've got an R Plate Golf that keeps on cutting out, its only just developed this problem.

When the cars just been started (cold) this issue doens't seem to occur, I can sit in nuetral or sit in gear with the clutch depressed and I don't have to keep my foot on the accelerator, I can rev the car and the revs drop back to idle, the car doesn't cut out.

Once the cars upto temperature as soon as I come off throttle, and start slowing down, (tried foot flat on the clutch, and In nuetral) the car will cut out, and the revs drop straight to nothing rather than just stopping at idle.

This issue does seem more pronounced with harder breaking, if I come to a gentle stop it is possible to stop the car without it cutting out entirely, though most times I've managed this I've had to be in nuetral. If I left foot break while in nuetral its easy to come to a stop without stalling (though my left foots quite heavy on the break so I'm not that comfortable with it.) - though the only reason this works is because I can keep my right foot on the accelerator to stop the revs falling off.



Anyone got any ideas what this is?

Its a 1.5 or 1.6 litre petrol Golf with a Manaual Box. Major Service 700 Miles ago at Nationwide, along with new rotor arm and distributor. New Gearbox and Clutch less than 20K ago. Cars not thrashed or abused.
 
Never worked on one of these engines before, are you getting any engine management lights on the dash?

Personally i would scan it for fault codes using Vag-Com and a lead from the famous auction site, should hint on, or tell you exactly what the issue is :)
 
Firestar_3x said:
Never worked on one of these engines before, are you getting any engine management lights on the dash?

Personally i would scan it for fault codes using Vag-Com and a lead from the famous auction site, should hint on, or tell you exactly what the issue is :)
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Yeah its very analog and ninties inside, I only have an airbag light, an oil light, and a coolant light. They're all behaving as normal.

I think this is beyond me - time to go get the credit card sreaming at the garage I think!
 
IIRC those temp sensors are just a wax that can, over time, become unstable. If it's stopping suddenly then it's a good chance that it is electrical as a fuel problem leads to a spluttering halt
 
brake light switch. check it.

edit... ah your car might be to old for this to affect it......does it have EFI???, if it does it still could cause it...., (just so you dont think I'm being a twit, the brake light switch is cut in to the emisions circuit to the ecu on newer vw's, )
bullit
 
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Hmmm - I'm now leaning toward it being something to do with the choke, as when the car is cold - no problem - so the chokes keeping it on.

Going to nip outside when it stops raining and pop the air filter off, apparently I'm looking for a big penny size flap that gets a load of crap aroud it sometimes? (Only descriptions I've been able to find from the many forum posts I've read accross the web this morning!
 
bullit in head said:
brake light switch. check it.

edit... ah your car might be to old for this to affect it......does it have EFI???, if it does it still could cause it...., (just so you dont think I'm being a twit, the brake light switch is cut in to the emisions circuit to the ecu on newer vw's, )
bullit
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Theres not a lot of technology in here - I still have the original tape player. Theres no onboard computer or fancy braking stuff as far as I know.
 
Well yesterday after cleaning this kind of 50p size flappy thing under the air filter - the car behaves quite differently, the symtom hasn't completly gone but its less pronounced!

Staying at home today, dont fancy doing the M6 this morning in the Golf - drivings quite stressful when you don't know whats going on with the car! Thank god for Work from home" days!
 
UncleBensSauce said:
Well yesterday after cleaning this kind of 50p size flappy thing under the air filter - the car behaves quite differently, the symtom hasn't completly gone but its less pronounced!

Staying at home today, dont fancy doing the M6 this morning in the Golf - drivings quite stressful when you don't know whats going on with the car! Thank god for Work from home" days!
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Sounds like you cleaned out the throttle body :) Just had a thought you say this helped... could well be the mass air flow sensor not responding properly to the amount of fuel and therefore flooding the engine hense the ropey idle. Might be worth checking contacts and giving the sensor a clean.
 
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VinceB1 said:
Sounds like you cleaned out the throttle body :) Just had a thought you say this helped... could well be the mass air flow sensor not responding properly to the amount of fuel and therefore flooding the engine hense the ropey idle. Might be worth checking contacts and giving the sensor a clean.
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That sounds quite logical :) - any pointers on what and where to look?


Ta
 
VinceB1 said:
I can't be 100% as have never owned a golf, but they are normally between the throttle body and the air intake

http://memimage.cardomain.com/ride_images/1/2518/3321/6294160029_large.jpg

On this image (of a golf) it is the wire going in just above the filter cone at the left hand side (somebody please correct me if I am wrong).
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Thanks for pointers - I have very little knowledge of cars!

I've had a poke about and discovered shed loads of different coloured wires around that area. hmmmm - almost everything about that engine looks different to mine - I'll have to dig out the haynes manual

Can anyone recommend a good vw indy around birmingham (or cannock) or a good mobile mechanic (vag-com equipped?)



Ta
 
Bah - Girlfriends convinced me we don't need a car anymore as we don't have the money for a big bill. Great.

Did my first comute to work without a car this morning, 2 hours - as opposed to the 35 minute average a car can manager; public transport sucks, and costs more than £10 a day!

Not happy - but what can you do?! GF's right, its probably not worth throwing any more money at an old Golf (Last time it went to the garage it cost about £600 - 6 Weeks ago), its due its MOT in May, and It appears theres an oil leak between the GearBox and the engine, which I assume it will fail its MOT on.

Did have a quick look at the car this morning to find the coolant has dropped about 4 inches since monday night - and the cars not moved anywhere!

Gutted.
 
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