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tripsone

Engine Keeps Cutting Out....

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tripsone

Hello. I have a MK4 VW POLO 1.4 1997. Recently when i was driving i noticed my car cut out but at first i just thought it could be water as it was pissing it down that day so i left it standing for a few days to see if it would dry off, nothing changed. Basically my car keeps cutting out for no reason, the speedometer has a mind of its own when i leave the car running it just flicks up and down? Then the car cuts out. I had an old polo before and found out it was the temp stat in the engine which it then worked fine when i replaced it. Any ideas at all anyone? Thanks for you help. Damian.

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ranger2
Hello. I have a MK4 VW POLO 1.4 1997. Recently when i was driving i noticed my car cut out but at first i just thought it could be water as it was pissing it down that day so i left it standing for a few days to see if it would dry off, nothing changed. Basically my car keeps cutting out for no reason, the speedometer has a mind of its own when i leave the car running it just flicks up and down? Then the car cuts out. I had an old polo before and found out it was the temp stat in the engine which it then worked fine when i replaced it. Any ideas at all anyone? Thanks for you help. Damian.

dodgy earth? i had similar issues recently but not as bad as that? is there a pattern or is it random?

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TheMitch1

Your coil possibly or as said a dodgy earth. pull out you are ignition coil leads and put them back in. Also check you are ignition coil for any signs of burnt plastic. I had a T reg polo saloon with this problem years ago and it was my coil. Mine was more or less exact same as this>>>>>>>>>>>>>>>>>>>>

http://www.ebay.co.uk/itm/VW-POLO-SALOON-5...=item45fd976543

It got to the point it stopped completely and would turn over but not fire and start. The garage close to where it conked out was spouting all sorts bout what the problem was and was wanting £70 just to do a diagnostic on it EVEN THO I TOLD THEM I'm NOT WANTING OR INTERESTED IN THEM DOING ANYTHING TO IT APART FROM STAYING AWAY FROM IT lol Luckily for me it was well visible where the little bits of plastic had been bubbling and melting. It could be that on yours but also the loom from the starter onwards at the front of the car has a tendency to develope bad earths. An arcing earth melts can melt your ignition coil. Not sure if that happened to mine but i replaced the coil and cleaned up most earthing points between starter and the coil with a file. Also meant to say. At the very front of your car near the underside of the engine. Look under the car and you will see 3 or 4 black connectors. UNplug them and plug them back together.If your lucky it will be one of them. They make up a circuit for the coil and starter.

Hello. I have a MK4 VW POLO 1.4 1997. Recently when i was driving i noticed my car cut out but at first i just thought it could be water as it was pissing it down that day so i left it standing for a few days to see if it would dry off, nothing changed. Basically my car keeps cutting out for no reason, the speedometer has a mind of its own when i leave the car running it just flicks up and down? Then the car cuts out. I had an old polo before and found out it was the temp stat in the engine which it then worked fine when i replaced it. Any ideas at all anyone? Thanks for you help. Damian.
Edited by TheMitch1

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caretakerplus

The symptoms are typical of a failing Hall sender unit in the distributor. If this is the problem, the easiest cur is to fit a new distributor, as changing the Hall sender(which is available) is a bit of a tricky operation, but before you spend your money, do check as already suggested, also try disconnecting, checking for corrosion and refitting the main engine loom plug, which is situated at the front of the engine, just in front of the distributor, it comes apart with a twisting movement, like you would be unscrewing the two halves.

As the problem started in the wet, it may pay to check all engine management connections.

Regards.

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tripsone
Hello. I have a MK4 VW POLO 1.4 1997. Recently when i was driving i noticed my car cut out but at first i just thought it could be water as it was pissing it down that day so i left it standing for a few days to see if it would dry off, nothing changed. Basically my car keeps cutting out for no reason, the speedometer has a mind of its own when i leave the car running it just flicks up and down? Then the car cuts out. I had an old polo before and found out it was the temp stat in the engine which it then worked fine when i replaced it. Any ideas at all anyone? Thanks for you help. Damian.

dodgy earth? i had similar issues recently but not as bad as that? is there a pattern or is it random?

Really random mate. It was perfectly fine until i pulled up the other day to drop something off, got back in the car and the speedometer kept flicking up randomly and shortly after my engine would cut out. I've never had this problem before. Thanks

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TheMitch1

Do everything as I said above. Its NOT any hall sender in distributer. I know them cars well and their common faults. Its a mrk4 not a mrk1, 2, or 3. The hall senders are common faults on the 1,2,3's definetely NOT the mrk4s. Run a jump lead from you are earth strap on the engine front right to your negative on you are battery when it happens again and see if it cures it completely when its idling. If it does its your connectors on the loom and that earth needs cleaned up. If u gimme a photo looking into front of you are engine from radiator to you are battery can probably put some arrows in for u. The main big connector is low down on the front of the engine. It actually is common for completely sliding apart. U need to start unplugging and replugging connectors before you are coil gets fried. It might already have gone faulty.

Hello. I have a MK4 VW POLO 1.4 1997. Recently when i was driving i noticed my car cut out but at first i just thought it could be water as it was pissing it down that day so i left it standing for a few days to see if it would dry off, nothing changed. Basically my car keeps cutting out for no reason, the speedometer has a mind of its own when i leave the car running it just flicks up and down? Then the car cuts out. I had an old polo before and found out it was the temp stat in the engine which it then worked fine when i replaced it. Any ideas at all anyone? Thanks for you help. Damian.

dodgy earth? i had similar issues recently but not as bad as that? is there a pattern or is it random?

Really random mate. It was perfectly fine until i pulled up the other day to drop something off, got back in the car and the speedometer kept flicking up randomly and shortly after my engine would cut out. I've never had this problem before. Thanks

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bluemac

Sounds like my issue, can you take a look at this topic and let me know what you reckon?

My Topic

Cheers

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tripsone
Do everything as I said above. Its NOT any hall sender in distributer. I know them cars well and their common faults. Its a mrk4 not a mrk1, 2, or 3. The hall senders are common faults on the 1,2,3's definetely NOT the mrk4s. Run a jump lead from you are earth strap on the engine front right to your negative on you are battery when it happens again and see if it cures it completely when its idling. If it does its your connectors on the loom and that earth needs cleaned up. If u gimme a photo looking into front of you are engine from radiator to you are battery can probably put some arrows in for u. The main big connector is low down on the front of the engine. It actually is common for completely sliding apart. U need to start unplugging and replugging connectors before you are coil gets fried. It might already have gone faulty.

Hello. I have a MK4 VW POLO 1.4 1997. Recently when i was driving i noticed my car cut out but at first i just thought it could be water as it was pissing it down that day so i left it standing for a few days to see if it would dry off, nothing changed. Basically my car keeps cutting out for no reason, the speedometer has a mind of its own when i leave the car running it just flicks up and down? Then the car cuts out. I had an old polo before and found out it was the temp stat in the engine which it then worked fine when i replaced it. Any ideas at all anyone? Thanks for you help. Damian.

dodgy earth? i had similar issues recently but not as bad as that? is there a pattern or is it random?

Really random mate. It was perfectly fine until i pulled up the other day to drop something off, got back in the car and the speedometer kept flicking up randomly and shortly after my engine would cut out. I've never had this problem before. Thanks

Here you go mate. Thank you.

Damian.

post-101150-1343584486_thumb.jpg

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tripsone

Any ideas man?

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bluemac

Tell you what, I think I've solved mine completely.

Checked under the bonnet, had a hissing/whooshing of air sound. Found that one of the vacuum tubes from the air filter was punctured. Replaced it with one from the scrappy, whooshing sound gone. Still cutting out on me though, but slightly less often.

Tried plugging in the Sat Nav the other day, and it was completely dead. Same for the stereo. Turns out fuse #28 was blown, no idea why. I pulled out all the wiring to the stereo and the cigarette lighter, traced the cabling back to where the loom comes in from the engine compartment - reseated the connector. Inspected all the cabling (fine), and wired back up. Replaced the fuse, and huzzah, since then there has been zero in the way of any sort of problems. It's kept the time, remembered the miles I've done and so on. No cutting out, stuttering, or whatnot. During the whole process I did have the distributor cap off, and reseated the rotor arm. Not sure if that's what did it, but might be an idea to take a look at yours?

Hope some of this helps, probably not though :p

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tripsone

Cheers mate ill have a look. Might try and strip the engine down later to have a better look into it. The battery did die as i left it standing for a while, boosted it this morning and took it for a drive, didnt cut out once, no problems at all.

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tripsone

Took it into the garage today. Will have it back tomorrow so ill let you know what it was.

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bluemac

Cheers, mine has started doing it again now. Only once in 90 miles though, not nearly as bad as it was.

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tripsone
Cheers, mine has started doing it again now. Only once in 90 miles though, not nearly as bad as it was.

Took it into the garage today and he couldnt find what was wrong with it. Definitely something to do with the electrics he said. He thinks it could be the ECU? He told me to take it to a specialist because he would be looking for hours and he doesnt know electrics to well. Going to take it to my mate on friday because he knows abit more than him. Hopefully he'll find it. Love this car to bits dont wanna get rid of it.

Edited by tripsone

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rteone

I've got this exact same problem on my 1999 1.4 16v polo. the idle goes erratic and it judders along for a couple seconds then dies on me. started doing it once in a blue moon now its doing it all the time. I connected up a vagcom and there wasn't any error codes . found a vacuum house degraded ,fixed that and it worked for 24 hrs. then i cleaned the throttle bodies for the next 24 hrs it was fine again.

ITS DOING MY HEAD IN.

oh and i changed the fuel filter that also fixed it for a couple hours

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tripsone
I've got this exact same problem on my 1999 1.4 16v polo. the idle goes erratic and it judders along for a couple seconds then dies on me. started doing it once in a blue moon now its doing it all the time. I connected up a vagcom and there wasn't any error codes . found a vacuum house degraded ,fixed that and it worked for 24 hrs. then i cleaned the throttle bodies for the next 24 hrs it was fine again.

ITS DOING MY HEAD IN.

oh and i changed the fuel filter that also fixed it for a couple hours

How irritating is it? People have told me so many different things. Even the mechanic in the garage didnt have a clue. He said its definitely electrics so take it to someone that knows more than me. Taking it to my mate on friday to see what he says about the electrics.

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bluemac

I found today that I had a Bosch distributor cap on a Marelli distributor. ¬_¬

Replaced with a proper Marelli compatible one from Parker's Parts in Corby (Cost about £12), stuck a new rotor arm in as well, and everything's peachy. Turns out I had no cover over the distributor cap, the metal part with the earth braid on it. When I bought the car there just wasn't one fitted, probably because he couldn't get it on with that bloody Bosch part.

Worth checking maybe, just take a gander at the distributor - see if the plastic cap with the HT leads coming out of it has a metal cylinder around it that has a braid attaching back to the distributor.

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rteone

i fixed mine yesterday, changed the fuel filter which when i open was proper black , and i changed the rotary arm and dizzy cap now it works fine

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bluemac

I haven't done the fuel filter yet, I've got goo in my breather pipe and oil in the air filter, so I've got me a breather pipe from the scrappy and cleaned it out, and tried to mop up as much oil as possible. Petrol consumption seems to have gone down quite a bit since I started poking around in there, and the cutting out seems to have died down too, hasn't done it for days.

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tripsone

Took mine to VW Rescue in Wombourne today. He said i have a few corroded wires and i need to change the fuel and speed senders. He thinks that will fix it but its going to cost me £250? Worth it or?

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bluemac

Wow, that's a pretty hefty cost for 'thinks' he will fix it. Any chance you could try these repairs yourself? I'd hit the scrappy and pick up some very cheap replacements to test it out with. My Polo's working great now, done over 100 miles without any issues.

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