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Topic: Low oil pressure on first start (Read 505 times) |
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Beebop
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I'm a YaBB newbie!
Posts: 2
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Low oil pressure on first start
« on: Sep 14th, 2006, 11:47pm » |
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I am seeing the oil pressure light staying on for up to a minute on first starting the engine. The light behaves normally if you then stop the engine, wait and restart - even if the engine has been stopped for an hour or so. Only if the engine has been stopped for many hours does the light take a long time to extingish.
It's a 2.3 engine from 1997 with a bit over 150,000 miles. The engine is not markedly more clattery during this time.
Reving the engine doesn't seem to bring the oil light off any quicker.
Once the lamp is off it remains off - no flickering.
I found out today that, in the last service of 11 months ago (and 11,000 miles), 10/40 engine oil was put in - not 5/30. But surely this small difference in viscosity cannot explain this? Can it?
I know that there can be many potential causes but I wondered if this engine was prone to (a) particular type of failure(s).
Obviously I woud like to think it is only the pressure switch, but the behaviour doesn't seem likely to me to be caused by a bad switch (even one just getting a bit stiff).
Has anyone any experience of this sort of problem on the 2.3 engine (especially if seen on several cars).
Thanks,
Beebop.
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Low oil pressure on first start
« Reply #1 on: Sep 15th, 2006, 12:03am » |
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I've not experienced this in my 2.3, but you say that it had 10/40 put in 11,000 miles ago.
The service interval is 10,000 miles so I would imagine after 11,000 miles the oil has lost alot of its viscosity.
Best to do an oil change now & put in 5/30 (I use Castrol GTX Magnatec 5/30 semi-synthetic), & then see if the light is still coming on. 
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twinturbo
Full Member
24V's Me game!
Posts: 904
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Re: Low oil pressure on first start
« Reply #2 on: Sep 15th, 2006, 7:37am » |
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Twincam's are not generaly know for oil preasure problems, they generaly outlast everything else.
Fresh oil & filter first.
Then try the switch.
If that fails to improve the situation, start looking for a spare engine, but no rush as it will go on for ages so long as you don't race it whilst the light is on.
Swapping the engine is a weekends work.
TT
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Jim
Full Member
1996 2.3 115k and rising
Posts: 121
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Re: Low oil pressure on first start
« Reply #3 on: Sep 16th, 2006, 7:57pm » |
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If wrong grade oil was put in its possible wrong filter was also put in. Correct filter has a non-return valve built in.
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Jim
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Beebop
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I'm a YaBB newbie!
Posts: 2
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Re: Low oil pressure on first start
« Reply #4 on: Sep 16th, 2006, 8:24pm » |
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Thank you everyone for your remarks and advice.
Beebop
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Dave
Senior Member
Tourmallard 24v (ex-owner)
Posts: 1984
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Re: Low oil pressure on first start
« Reply #5 on: Sep 25th, 2006, 12:47pm » |
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Just for info, the same thing happened when my 24v was bought. The oil that was in that had been there for approx 12k. Oil and filter change cured it and has been fine in the 2 years since.
Oil+filter changes now performed at approx 3k intervals.
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Life after the Scorpio ain't easy..
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