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The mkiv Supra Owners Club

Low oil light on when oil's ok.


stupra

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Hi people. My low oil warning light came on the other day, but the oil level is fine. I decked out the bottom of the car the day before, an a couple of garages have told me that the sensor in the sump might have been moved or damaged, an so its reading wrong. Wot do you guys think, is this possible ?.

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Isn't it an oil PRESSURE warning, not an oil level warning?

 

If your oil pressure is too high or low you may start to get problems. Obviously check the sensor first but other possibilities include possible oil pump or blocked oil ways.

I'd get it in a garage straight away if it was me.

 

[edit] Reading what Chris put there may well be two lights and I've never noticed.

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Cheers guys, its not worrying me big time, i've got good oil pressure on my gauge, an like i said the dipstick says there's enough oil in there. Pete its the little orange oil light on the right hand side, i was told the low pressure warning light was the red one next to it ?. It's basically just annoying having the bloody lights on all the time, espesh at night.

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Cheers guys, its not worrying me big time, i've got good oil pressure on my gauge, an like i said the dipstick says there's enough oil in there. Pete its the little orange oil light on the right hand side, i was told the low pressure warning light was the red one next to it ?.

Ah - I've never noticed there were two! I'll have to look at that.

 

I'd believe your gauge then. Sorry for talking bollocks. ;)

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After my recent experience with my front crank oil seal blowing, i certainly wouldn't disconnect the level warning light! if it hadn't been there to warn me the only pre warning i would of had would have been the the low or no oil pressure light, and my gauge, and i suspect by that stage it would have been to late and the engine could have been damaged big time:(

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  • 2 years later...

Sorry to drag up an old thread - but the same thing happened to me tonight, and I've seen it once before as well. Thought it was low oil, but when I checked last time the oil level was fine.

 

I'm suspecting oil level sensor - seems to come on when my car isn't level, ie on a hill, but not all the time. It comes on but disappears within a second or two. (It's the yellow warning light, not the red pressure one)

 

Can anyone help? Basically I want to know where the sensor is, how easy it is to replace, and if anyone has the part numbers - even better!

 

Thanks!

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Can anyone help? Basically I want to know where the sensor is, how easy it is to replace, and if anyone has the part numbers - even better!

 

 

Follow your dipstick tube down and where it dissappears into the block/sump, to the right is part of the loom and a metal plate secured by x4 bolts.

 

To replace i wouldn't think is too tricky.............possibly awkward to get at (i've only removed them from old engines out of the car).............certainly you'd need to be very careful not to drop anything into the sump as this would be a pita (should be easy to avoid really though). Basically unclip the loom connector, undo the x4 bolts and the sensor can be removed, but the sensor is not straight like say a spark plug its a sort of L shape so it requires a fair bit of rotation to remove it.

 

I can post some pictures of the sensor and its mounting etc if you are going to go for it..........might even have another level sensor you can try.

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I've seen people mention disconnecting it, not sure I'd be happy doing that either. The dash warning lights would then not operate at all....

 

I'll have to take a look and see if I can see this sensor, another reason would be to ensure it is actually connected properly in the first place, in case that is causing the lights to flicker anyway!

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I wouldn't have thought so mate, it comes on when it's supposed to at start-up, and whenever the yellow light comes on, the red warning triangle in the middle of the dash comes on too, so it'd probably be coming from the sensor itself.

 

At least that's the way I see it - if it was a dry joint on the dash light then the red triangle wouldn't come on as well, would it?

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