Nissan Altima 2002 (auto) - RPM drops and oil pressure light comes on

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mazdotnet - 28 Feb 2009 02:12 GMT

Hi,

I have a 2002 Nissan Altima. Recently the RPM drops when the car is
stopped or idling really low (~550). However, when I'm driving it's
fine. Also, the oil pressure light comes on during the RPM drop
phase.

Any idea what this could be?

Thanks
Maz

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Kenny - 28 Feb 2009 02:57 GMT

check the oil level with the engine not running

> Hi,
>
[quoted text clipped - 7 lines]
> Thanks
> Maz

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Clive - 28 Feb 2009 10:59 GMT

>check the oil level with the engine not running

Normally on a flat surface, and the engine at whatever the manual
states, normally cold.

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Clive

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mazdotnet - 28 Feb 2009 16:53 GMT

> In message <49a8a785$0$4905$9a6e1...@unlimited.newshosting.com>, Kenny
> <The@RedSoxSuck.?.com.invalid> writes>check the oil level with the engine not running
[quoted text clipped - 3 lines]
> --
> Clive

But it wasn't like this before. It's been a month now. Usually it's
around 800 RPM but recently it dropped. Any idea what could be causing
this?

Thanks
Maz

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Kenny - 28 Feb 2009 22:23 GMT

before you worry about the low idle problem you need to concern yourself
with the low oil pressure problem before you let the smoke out of the engine
On Feb 28, 5:59 am, Clive <Cl...@yewbank.demon.co.uk> wrote:

> In message <49a8a785$0$4905$9a6e1...@unlimited.newshosting.com>, Kenny
> <The@RedSoxSuck.?.com.invalid> writes>check the oil level with the engine
[quoted text clipped - 4 lines]
> --
> Clive

But it wasn't like this before. It's been a month now. Usually it's
around 800 RPM but recently it dropped. Any idea what could be causing
this?

Thanks
Maz

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John Henderson - 01 Mar 2009 00:50 GMT

> before you worry about the low idle problem you need to concern
> yourself with the low oil pressure problem before you let the
> smoke out of the engine

Unless there's reason to think otherwise, I'd have assumed that
the low oil pressure was a direct result of low engine RPM.

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Clive - 01 Mar 2009 10:48 GMT

>> before you worry about the low idle problem you need to concern
>> yourself with the low oil pressure problem before you let the
>> smoke out of the engine
>
>Unless there's reason to think otherwise, I'd have assumed that
>the low oil pressure was a direct result of low engine RPM.

800rpm strikes me as high, I'd have thought that this would only be
during warm up and that the idle would be normally about 600 to 650rpm
with a hot engine. I'm thinking engine management problems? Maybe
it's failed and gone into safe or get you home mode, though like you I'd
want to check the oil level, I'd suspect low rpm for low pressure.

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Clive

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