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Low Oil Pressure 

 

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 Post subject: Low Oil Pressure
Posted: Wed Jan 28, 2009 12:32 am 
Getting Side Ways
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Ride: 08 BF Ghia

Location: Melbourne
VIC, Australia

Hi All, Wondering if anyone knows exactly where oil pressure should show. I understand in hot days oil is thinner giving you a lower reading, but today at 100kmh the pressure was really low and warning light came on. Oil level appears OK so i am not sure if pump is dying or im am i missing something else. No abnormal engine noise. Loses some pressure on flat to floor acceleration. Car is duel fuel and does same on either fuel. I tried to search it but its too hard for the crappy new search engine. Any ideas?
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 Post subject: Re: Low Oil Pressure
Posted: Wed Jan 28, 2009 12:38 am 
Getting Side Ways
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Age: 28

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Joined: 2nd Mar 2006

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Ride: '14 Grand Cherokee

Location: Port Lincoln
SA, Australia

i think the oil pressure sender on EF/L is a bit dodgy from factory... mine has a new oil pump and a full sump of 20w50, and on hot days it does the same once the motors hot. once at the traffic lights it was just on the top of the red on the low side, light went green and i took off and by the time i was at the other end of the intersection it was reading almost 7 :? then backed off and it went back to about the middle.

 

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 Post subject: Re: Low Oil Pressure
Posted: Wed Jan 28, 2009 8:53 pm 
Getting Side Ways
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Ride: 08 BF Ghia

Location: Melbourne
VIC, Australia

Maybe its just the extreme heat thinning the oil and dodgy sender. I did already put a new one on a couple of years ago. The warning light used to come on at idle with AC on in hot weather but never while driving at 100 revs where low. Im going to put a thicker grade of oil in to see if it makes any difference. Im using magnatec at the moment. It still runs fine so im hoping its all good.
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 Post subject: Re: Low Oil Pressure
Posted: Wed Jan 28, 2009 9:00 pm 
Technical Contributor
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Age: 38

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Joined: 20th Mar 2005

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Ride: 2.0 Turbo VW

Power: 142 rwkw

Location: Seaford State:
VIC, Australia

Slap another earth strap on it.

ie:
Factory:
Batt to recovery frame.
Batt to engine block.

AU's slapped another joiner from the block to the K-frame.
This can be utilized and added to your current existing wannabe earth factory setup.
The more the merrier with earthing.

I've found the battery charges better and the gauges/lights are better with this slight increase of earth.

 

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 Post subject: Re: Low Oil Pressure
Posted: Wed Jan 28, 2009 9:08 pm 
Getting Side Ways
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Ride: VY Commodore Wagon Accli

Location: Bannockburn
VIC, Australia

Krytox wrote:
Slap another earth strap on it.

ie:
Factory:
Batt to recovery frame.
Batt to engine block.

AU's slapped another joiner from the block to the K-frame.
This can be utilized and added to your current existing wannabe earth factory setup.
The more the merrier with earthing.

I've found the battery charges better and the gauges/lights are better with this slight increase of earth.

I've got the same/similer problem, except my car's an ED... should the same be done even though it's a different car???

 

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 Post subject: Re: Low Oil Pressure
Posted: Wed Jan 28, 2009 9:19 pm 
Technical Contributor
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Age: 38

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Joined: 20th Mar 2005

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Ride: 2.0 Turbo VW

Power: 142 rwkw

Location: Seaford State:
VIC, Australia

I've always installed larger/better earthing on all my cars.
It cost's nothing, and does help.

especially those running 0 gauge amp positives and running a fat neg to the body. the weakest link is the earthing to the alt/battery.

follow it back, they're pissy.

 

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 Post subject: Re: Low Oil Pressure
Posted: Thu Jan 29, 2009 11:50 am 
Oompa Loompa
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Location: Dubbo
NSW, Australia

:( hi think she needs a rebuild. :cry:
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 Post subject: Re: Low Oil Pressure
Posted: Thu Jan 29, 2009 11:55 am 
Getting Side Ways
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Age: 28

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Ride: '14 Grand Cherokee

Location: Port Lincoln
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krytox, that sounds like a good idea. i might do that on the weekend if i have time :)

 

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 Post subject: Re: Low Oil Pressure
Posted: Thu Jan 29, 2009 9:49 pm 
Getting Side Ways
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Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

ghia97 wrote:
Hi All, Wondering if anyone knows exactly where oil pressure should show. I understand in hot days oil is thinner giving you a lower reading, but today at 100kmh the pressure was really low and warning light came on. Oil level appears OK so i am not sure if pump is dying or im am i missing something else. No abnormal engine noise. Loses some pressure on flat to floor acceleration. Car is duel fuel and does same on either fuel. I tried to search it but its too hard for the crappy new search engine. Any ideas?


If your running LPG, go to a thicker oil, 20W50 or 25W60.

 

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 Post subject: Re: Low Oil Pressure
Posted: Thu Jan 29, 2009 10:11 pm 
Getting Side Ways
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Age: 42

Posts: 1343

Joined: 14th Dec 2007

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Ride: EL fairmont offroader

Location: seaspray
VIC, Australia

SpeedyED wrote:
Krytox wrote:
Slap another earth strap on it.

ie:
Factory:
Batt to recovery frame.
Batt to engine block.

AU's slapped another joiner from the block to the K-frame.
This can be utilized and added to your current existing wannabe earth factory setup.
The more the merrier with earthing.

I've found the battery charges better and the gauges/lights are better with this slight increase of earth.

I've got the same/similer problem, except my car's an ED... should the same be done even though it's a different car???

The ED's earth goes from the block to the chassis, then to the battery, and is a decent guage. Whereas on the EL it goes from the block to the battery, and then there is a pissy wire from there to the coolant reservoir panel which is the earth. So the EL is much more in need of attention. Although the EL has a bigger alternator and alternator wire.

 

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