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Old 28-12-2012   #1
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Flickering warning triangle !

Hello

Since i had a new engine fitted i've had the yellow warning triangle with the ! flickering. I had this before with my last engine too. I suspect maybe it could be low oil pressure. However the manual says that the red oil can will light up with the fault message. I get no fault messages with the flickering triangle though. Also my battery is failing and i do need a new one, could this be linked? Am i worrying about nothing or should i get the oil pressure checked?
The car is a JTD. It sometimes starts flickering when the key is in the MAR position.

Just to add: the manual says this triangle could be low oil pressure sensor. Sorry i'm getting confused. Maybe theres a sensor failure somewhere.

Thanks

Phil
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Last edited by philipb82; 28-12-2012 at 16:35.
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Old 29-12-2012   #2
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Just a general question. If the oil pressure sensor was faulty, would it still notify me if i had low oil pressure?

Phil
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Old 29-12-2012   #3
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Re: Flickering warning triangle !

No it wouldn't. The oil pressure sensor is the only sensor that provides oil pressure information to the ECU.
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Old 29-12-2012   #4
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Quote Originally Posted by Davren View Post
No it wouldn't. The oil pressure sensor is the only sensor that provides oil pressure information to the ECU.
Right. I've just been down to a garage and i asked him the same question the bloke said yes it would. Anyway they reckon its a short or bad connection in the car, possibly alternator battery, clocks or body computer.

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Old 29-12-2012   #5
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Anyway if i did happen to have a faulty oil pressure sensor, would that warning triangle be lit solid with the message? It did for the oil level sensor fault, preheat fault and speed limit. So this flickering is something else. Flippin' Stilos!!!

Phil
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Old 04-08-2013   #6
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Sorry to bring this back up again but after months of no flickering triangle light it came on again on holiday. However i'm not really expecting a definitive answer on this one as its puzzled a few people. It may be a problem that just comes and goes. However i think i've found a pattern to when the light flickers. All summer when the weather has been nice - no light. Then on holiday driving in the rain it flickered on. It also comes on after the car has been sat in the rain. When we went to the beach and it was really warm, i went to start the car and no light. Since then the weather has been dry and the light has stayed off. So if thats the case, could something be getting wet causing a short? Then drying out hence the light going out? Just a thought really. I be interested to hear any ideas but like i said i'm not expecting a solution to this.

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Old 04-08-2013   #7
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Re: Flickering warning triangle !

Have you read your manual to see what options this light is used for? It would be a good place to start.

On my Panda, this light could be used for water in fuel filter, failure of the fuel filter warning system, and also for an "unspecified failure" which would be described in the display. I think on later vehicles it also flashes when the diesel particulate filter is purging, but I don't have a diesel, so can't be sure.
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Old 04-08-2013   #8
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Quote Originally Posted by portland_bill View Post
Have you read your manual to see what options this light is used for? It would be a good place to start.

On my Panda, this light could be used for water in fuel filter, failure of the fuel filter warning system, and also for an "unspecified failure" which would be described in the display. I think on later vehicles it also flashes when the diesel particulate filter is purging, but I don't have a diesel, so can't be sure.
Yes i have read the manual, thats the first thing i did. This warning light should be solidly lit accompanied with a fault message. However in my case the light flickers bright and dim but with no fault message. Thats the problem!

Phil
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Last edited by philipb82; 04-08-2013 at 13:29.
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Old 04-08-2013   #9
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Re: Flickering warning triangle !

Look at all the options in the manual. One of these has got water in the connection causing the flickering light. Find the relevant connections, probably the sensor on the fuel filter and check if it is wet.

When you find the wet one, dry it out thoroughly, but also try to determine how the water got there and prevent it. My guess is it is rain, which should normal drain elsewhere or spray from the roadwheels. (Have you lost an undertray or part of it?)

The fault is more likely to be under the bonnet than under the dash, so find the start of the circuits at the sensors. It will be possible to fix, as they are not all like it.
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Old 04-08-2013   #10
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Quote Originally Posted by portland_bill View Post
Look at all the options in the manual. One of these has got water in the connection causing the flickering light. Find the relevant connections, probably the sensor on the fuel filter and check if it is wet.

When you find the wet one, dry it out thoroughly, but also try to determine how the water got there and prevent it. My guess is it is rain, which should normal drain elsewhere or spray from the roadwheels. (Have you lost an undertray or part of it?)

The fault is more likely to be under the bonnet than under the dash, so find the start of the circuits at the sensors. It will be possible to fix, as they are not all like it.
Thanks for your help. Sounds like something could be getting wet. I have no undertray.

Phil
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Old 04-08-2013   #11
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Re: Flickering warning triangle !

Did it ever have an undertray? Some manufacturers only fit them to upper range models.

If it is supposed to have one, finding one could be difficult. Scrappers are likely to be broken as part of the crunch that put them there, so could be a long task. Good luck.
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Old 04-08-2013   #12
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Re: Flickering warning triangle !

definitely sounds like something is wet mate, obviously you need to find out what but my suggestion is this: get a can of wd40, form the engine bay, spray ALL electrical connectors you can see. then, get under the car and do the same. A good liberal spraying is required on the wires, connectors etc, the WD40 will push out the moisture, as it is a moisture repellent, and of course keep any new moisture at bay.

Ideally, do this when the triangle is doing its thing - just be careful, but the WD40 wont do any damage unless you start spraying injectors etc while the car electrics are on. This way you can spray one thing, check the light, and move on to the next until (hopefully) you find the culprit.

as suggested above though, find out what the triangle represents, and spray the appropriate wires etc...
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Old 04-08-2013   #13
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Re: Flickering warning triangle !

also, if you cant find an undertray - make one! all you need is decent thin plastic, drill holes as appropriate and cut to shape.....better than nothing.
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Old 04-08-2013   #14
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Re: Flickering warning triangle !

Quote Originally Posted by Clivvy View Post
also, if you cant find an undertray - make one! all you need is decent thin plastic, drill holes as appropriate and cut to shape.....better than nothing.
Good idea. Thin plastic will tend to flutter in the air current. Brace it with diagonal stiffeners, small bits of wood will do, glued or screwed.
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Old 04-08-2013   #15
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Re: Flickering warning triangle !

If you have the water in fuel sensor it connects to the bottom of the fuel filter on the diesel and guess with no undertray could be liable to being prone to water causing error, although with no undertray so could any other connectors.could be worth a check to make sure it is plugged in as not long after getting my car jtd I noticed previous owner had not connected the sensor connector to filter on mine or not properly and had fallen off from vibration..or a filter could be of been fitted that was not suitable for fitting the water in fuel sensor to and the connector is just dangling under the filter.
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