GolfGTIforum.co.uk
Model specific boards => Golf mk3 => Topic started by: stainesy on 22 January 2011, 13:04
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ok car cut out today wile driving.
and wouldnt start again.
tested and found no spart. recovery bloke recond it is probly the coil.
got the car home and it started finaly maybe as coil had cooled down but now there is a loud tappet sound.
what the hell has happened?
how could the coil going make it tap now?
aaarrrggghhh HELP
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cambelt slipped?
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Could that happens?
If so would it sound like tappets?
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it could do. It could sound like tappets I guess.
easy enough to check - what engine is it?
James
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Its 2.0 8v gti engine mate. 1998 mk3 gti.
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the engine still runs fine and revs fine but just now has loud tappet sound.
so i take it it must not be buggered then?
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ok here is an update.
i have just been to have a fiddle with the car again and have realised the tappin sound is actuly coming from the inlet manifold area not the block.
any adeas?
also have noticed a large flat bit of copper wire thinging that is bolted to the bolt that holds the coil on one end and other end just dangling.
any ideas why there is what looks like a big earth not atached?
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Without looking or rightly remembering is there an earth strap that runs from one of the coil fixing bolts to the valve cover..if so it might explain your prob, i mean where it's supposed to be attached..
Worth a look..
Christo
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Without looking or rightly remembering is there an earth strap that runs from one of the coil fixing bolts to the valve cover..if so it might explain your prob.
Worth a look..
Christo
yes i have an earth strap that runs from one of the coil fixing bolts but the other end is just dangling. it does have a thing on the end where it should have a bolt through it but where does that end go?
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Like i said.. the other end may well go to the valve/rocker cover..
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Like i said.. the other end may well go to the valve/rocker cover..
ok cheers mate.
anybody no if it does? cant seem to find anything about it in haynes manual.
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No worries.. anyways just go have a look, you'll soon see if there's a vacant connecting point that suits the length and shape of the earth strap.
Sounds like it's worked loose and come off..
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yeah looks that way but im more worried about the fact there is now a loud tapping/ticking sound from injectors/inlet manifold.
any ideas?
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Well yes if the coil isn't earthed it could well be causing the bad running and noises..
I had a bike many years ago that had an earth problem on the alternator/flywheel..i eventually found the issue but untill then it ran like crap and sounded like crap..and boiled the battery to overflow.
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Mate..just go start your engine and hold the dangling earth strap against the engine/valve cover.. i wouldn't mind betting your motor will suddenly sound healthy again :wink:
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Cheers a will try it in the morning. Thing is tho the car runs fine and I remember that earth strap has always been dangling. But sudenly now there is tapping. But idle and revs fine.
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Ok I couldn't resist walking round to my garage with a torch to try this out.
Started engine. Opened bonnet left it running and result the tapping started to fade and just turned into normal injector sound.
Am thinking that when my coil died earlyer and I tried starting it so many times at road side maybe I did something to injector to make them noisy but they have sorted themselfs now.
I did find where earth strap goes so put it back on. Didn't make any diferance but hay atleast its back where it should be.
Cheers for the help guys. Much appreciated.
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Well the earth strap may well have caused the cutting out issue. If not it could well also be the infamous crank position sensor down by the oil filtre and front engine mount. The wires fray with age. got mine replaced and it cured my cutting out issues.
Hope it's cured anyway! :smiley:
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Yeah I bought a new crank position sensor last week but gave up when trying to fit it because I had hang over and it started to rain lol.
Also got a new coil today so am going to fit that tomorrow.
Realy can't be arssed to do crank sensor myslef as its a bast#rds job so gona get garage to change it.
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Oh well..no probs..anyway i believe it connects onto the apparatus on the end of the valve cover, which you've found i think :wink:
And on that subject if you doubt the actual coil in anyway replace it..they have a habit of being a bit mysterious and packing up unexpectedly.
Bit of progress though eh..
Beg your pardon..see you've got a new coil.. top job.
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wont be anything to do with that strap, the only thing that can get effected by em is the dash and thats on older models. not entirely sure why it is there really, but its not the coil earth as thats the brown wire on the 3 pin plug! more likly to be coil is dying or its the crank sensor, do you remember if all the dash warning lights came on when it cut out?