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Old 15-02-2017   #1
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Low oil pressure causing loads of errors

My 11 months old Cross TA was towed to the dealer last week. Kept giving all sorts of warnings in the display like Hill Start not available, fuel cut off not available, 4x4 not available etc. It has been doing it on and off for the past month but has always started. Switching off and restarting always cleared the display warnings. However, this time, after a myriad of warnings the car refused to start. I left it overnight and it started perfectly OK next morning. My dealer just phoned to say they have cleared all the fault codes and tracked it down to low oil pressure. As the car has done under 5000 miles I don't quite see it.
How can a low oil level cause these warnings and why would the car have used so much oil in 5k of normal driving? Is the dealer giving me bull?
If it happens again, is there a way of starting the vehicle other than having to wait several hours for it to clear? I read somewhere that turning the ignition on and off ten times would do the trick but it didn't work for me. I know I could disconnect the battery but as I am of the fairer sex, it's not something I'd like to attempt in a busy car park! Any help would be appreciated.
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Old 15-02-2017   #2
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Re: Low oil pressure causing loads of errors

Low oil pressure or low oil level ?
They're two different faults.
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Old 15-02-2017   #3
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Re: Low oil pressure causing loads of errors

Quote Originally Posted by chr1s View Post
Low oil pressure or low oil level ?
They're two different faults.
Hi,
They said both. Said they had put more oil in, cleared the fault codes, and all was now well in the Fiat world.
Sounded like a typical Fiat Dealer load of tripe to me! I just can't see how low oil pressure/low oil level would result in these unrelated errors. Not once did I get a "low oil pressure" warning.
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Old 15-02-2017   #4
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Re: Low oil pressure causing loads of errors

Quote Originally Posted by Ceidio View Post
Hi,
They said both. Said they had put more oil in, cleared the fault codes, and all was now well in the Fiat world.
Sounded like a typical Fiat Dealer load of tripe to me! I just can't see how low oil pressure/low oil level would result in these unrelated errors. Not once did I get a "low oil pressure" warning.
If it's been run under load with both low oil pressure and low oil level for any length of time, the engine will be scrap. If Fiat are lucky, it may just about see the warranty out, but this is a car I'd want to be rid of at the earliest opportunity.

It's also a good example of why buying a secondhand car always carries some element of risk. This may not end well for the car's next owner.
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Old 15-02-2017   #5
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Re: Low oil pressure causing loads of errors

Thank you. It has never been run under load and has NEVER given any warning lights relating to oil pressure or level. Suggest you read my post again and answer what is asked/pertinent.
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Old 15-02-2017   #6
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Re: Low oil pressure causing loads of errors

Hi.
Whether used or bought new surely in 11 months you have checked the oil level??
When you get a car you need to get know it's habits and that includes it's oil consumption, regular checking early on will give you a lot of information.
I somehow doubt the engine is toast as you'd surely notice rumbling and other wear related noises. Get an ELM 327 reader and Torq on your phone and if you have problems read the codes yourself.
Whether the TA has a sophisticated oil pressure sensor or just a simple switch I have no idea nor whether it has a level sensor, but if the engine sounds OK when running I'd plump for sensor problems rather than worn main, big end bearings or duff pump.
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Old 15-02-2017   #7
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Of course I checked the oil level. Do you assume cos I am a woman that I would not do that? I put in 500ml of selenia oil (recommended) two weeks ago. I'm female NOT stupid.
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Old 15-02-2017   #8
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Re: Low oil pressure causing loads of errors

Quote Originally Posted by Ceidio View Post
Of course I checked the oil level. Do you assume cos I am a woman that I would not do that? I put in 500ml of selenia oil (recommended) two weeks ago. I'm female NOT stupid.
I think you are missing the point and it's nothing to do with what sex you are.
Questions have to be asked to get an idea of the problem.
Now that I know you check the oil and it has obviously not gone below the low mark, then I am confident the problem is sensor related. The code reader I suggest will be a good arguing point for you against the dealer.

One thing you have no idea of those that never check anything.... men included.
Good luck.
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Old 15-02-2017   #9
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Re: Low oil pressure causing loads of errors

Quote Originally Posted by Ceidio View Post
Of course I checked the oil level. Do you assume cos I am a woman that I would not do that? I put in 500ml of selenia oil (recommended) two weeks ago. I'm female NOT stupid.
hi,
as you'll know the TA's CAN use some oil..

if it's nearly new.., then it's worth attempting to get the consumption sorted - as they take @15,000 miles to fully run-in , and the proper oil is far from cheap.

I'd read horror stories about oil consumption / engines run dry..!! when waiting for mine to be delivered..
so I made sure it got properly bedded in once it had covered 2,000 miles ,
and it's perfect .. on 26K now - 4 years old,
Charlie
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Old 15-02-2017   #10
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Re: Low oil pressure causing loads of errors

The fact the dealer stated the oil pressure was low doesn't have a bearing on the level unless it was seriously depleted, did they add further oil after the 500ml you put in it and if so by how much and where is the oil on the dipstick now?
I'd be asking these questions at least..... Why was the oil pressure low..... What has been done to rectify the problem?
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Old 16-02-2017   #11
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Re: Low oil pressure causing loads of errors

Could someone please address this part of my message, "If it happens again, is there a way of starting the vehicle other than having to wait several hours for it to clear? I read somewhere that turning the ignition on and off ten times would do the trick but it didn't work for me." Thank you.
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Old 16-02-2017   #12
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Re: Low oil pressure causing loads of errors

Quote Originally Posted by Ceidio View Post
Could someone please address this part of my message, "If it happens again, is there a way of starting the vehicle other than having to wait several hours for it to clear? I read somewhere that turning the ignition on and off ten times would do the trick but it didn't work for me." Thank you.
Disconnect the battery for a few minutes. There's a quick release clamp so it takes only seconds and can easily be done in a busy car park. Fiats store all the critical information, including the radio code, in non-volatile memory, so the only thing you will have to reset is the clock.
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Last edited by jrkitching; 16-02-2017 at 10:25.
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Old 16-02-2017   #13
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Re: Low oil pressure causing loads of errors

Battery terminal disconnected will do a "reboot".

Im assuming the low pressure is from low oil circulation.

Try and record the oil consumption vs miles..

As if its unacceptably bad ...itll be remedied under warranty
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Old 16-02-2017   #14
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Re: Low oil pressure causing loads of errors

Quote Originally Posted by varesecrazy View Post
Battery terminal disconnected will do a "reboot".

Im assuming the low pressure is from low oil circulation.

Try and record the oil consumption vs miles..

As if its unacceptably bad ...itll be remedied under warranty
Charlie
The question is whether there is an engine fault or a sensor issue?? Before I went to the trouble of disconnecting the battery to reset the ECU I'd want to know if I was causing further damage to the engine or not by letting it run.
Surely the service department should have explained the situation properly to the customer.
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Old 16-02-2017   #15
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Quote Originally Posted by murphyv310 View Post
The question is whether there is an engine fault or a sensor issue?? Before I went to the trouble of disconnecting the battery to reset the ECU I'd want to know if I was causing further damage to the engine or not by letting it run.
Surely the service department should have explained the situation properly to the customer.
Pretty sure other TAs have done similar..
Remember it needs oil pressure to BREATHE..
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