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Author
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Topic: oil pressure
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Cstang5.0
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Member # 4925
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posted
 
 
What would cause you have low oil pressure the motor only has 7000 miles on it I just put it in and got it running. At first the pressure was at 50psi at idle now it only goes to 20 at idle what would cause this I changed the oil and filter and it didn’t help any suggestions
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88 VERT slow sold
89 coupe stock ; )
02 yukon
05 focus
Posts: 1638 | Registered: Oct 2004
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silverLX
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Member # 3207
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posted
Oil pump possibly going bad, or something could be clogging the pickup...thats what happened to my 351w...better figure it out now before its too late.
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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JohnB
Tech Moderator
Member # 969
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posted
Change the oil again. If you've only changed it once after that blown HG, I guarantee there is still oil/water mix in there. Use an engine flush per the directions as well. That HG milkshake will stick to everything, you gotta get it all out.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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Cstang5.0
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Member # 4925
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posted
im going to try to flush it tomarow will keep you posted thanks
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88 VERT slow sold
89 coupe stock ; )
02 yukon
05 focus
Posts: 1638 | Registered: Oct 2004
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JohnB
Tech Moderator
Member # 969
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posted
Ya, lemme know- if it turns out the oil pump went bad due to contaminates, I've got a brand new Ford one here- it's yours if you need it. ![[patriot]](graemlins/patriot.gif)
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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Cstang5.0
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Member # 4925
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posted
thanks i will
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88 VERT slow sold
89 coupe stock ; )
02 yukon
05 focus
Posts: 1638 | Registered: Oct 2004
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Cstang5.0
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Member # 4925
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posted
i tryed it and it still is at 20 psi im going to pull the pan and change the oil pump
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88 VERT slow sold
89 coupe stock ; )
02 yukon
05 focus
Posts: 1638 | Registered: Oct 2004
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silverLX
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Member # 3207
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posted
quote:
Originally posted by Cstang50:
i tryed it and it still is at 20 psi im going to pull the pan and change the oil pump
Good idea, make sure you clean out the pickup!
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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94gt
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Member # 3060
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posted
quote:
Originally posted by Cstang50:
i tryed it and it still is at 20 psi im going to pull the pan and change the oil pump
wanna do mine too? ![[Razz]](tongue.gif)
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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silverLX
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Member # 3207
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posted
quote:
Originally posted by 94gt:
quote:
Originally posted by Cstang50:
i tryed it and it still is at 20 psi im going to pull the pan and change the oil pump
wanna do mine too?
I'll do it ![[Big Grin]](biggrin.gif)
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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94gt
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Member # 3060
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posted
quote:
Originally posted by SilverLX351:
quote:
Originally posted by 94gt:
quote:
Originally posted by Cstang50:
i tryed it and it still is at 20 psi im going to pull the pan and change the oil pump
wanna do mine too?
I'll do it
its a very tempting offer
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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silverLX
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Member # 3207
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posted
PM me if you want it done, I have done quite a few now with the motor in the car...
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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Cstang5.0
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Member # 4925
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posted
do you have to unbolt the pick up to get the pan off or you can lift the motor high enuf to pull it out?
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88 VERT slow sold
89 coupe stock ; )
02 yukon
05 focus
Posts: 1638 | Registered: Oct 2004
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silverLX
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Member # 3207
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posted
You cant lift the motor high enough to remove the pan. The pickup bolts to the oil pump.
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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94gt
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Member # 3060
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posted
then how would you replace it with the motor still in the car? ![[Confused]](confused.gif)
-learning
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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silverLX
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Member # 3207
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posted
lift the motor up and drop the pan down far enough to get your hands/tools into the pan and unbolt the pump/pickup ![[Wink]](wink.gif)
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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Cstang5.0
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Member # 4925
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posted
THANKS
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88 VERT slow sold
89 coupe stock ; )
02 yukon
05 focus
Posts: 1638 | Registered: Oct 2004
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Hungry Hippo
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Member # 537
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posted
might want to check the bearings while the pan is offf
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05 S4 Avant(wagon)
09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
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BlownNOSMustang
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Member # 158
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posted
You say it starts out at 50 PSI. And then declines to 20 PSI. That happens when the oil gets hot. Mine is around the same. Hot at an idel. If I give it some gas it goes up. I would say thats the norm. Every car is different. If your still in the OK Zone your fine.
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1993 Hatch,363 CI,670 RWHP
Posts: 238 | From: Cow Town,USA. | Registered: Feb 2001
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94gt
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Member # 3060
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posted
quote:
Originally posted by BlownNOSMustang:
You say it starts out at 50 PSI. And then declines to 20 PSI. That happens when the oil gets hot. Mine is around the same. Hot at an idel. If I give it some gas it goes up. I would say thats the norm. Every car is different. If your still in the OK Zone your fine.
mine was always in the normal zone before I put on my oil press gauge, now it reads like 50+ when cold, and 25 when crusin while warmed up
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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silverLX
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Member # 3207
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posted
quote:
Originally posted by BlownNOSMustang:
You say it starts out at 50 PSI. And then declines to 20 PSI. That happens when the oil gets hot. Mine is around the same. Hot at an idel. If I give it some gas it goes up. I would say thats the norm. Every car is different. If your still in the OK Zone your fine.
But if it didnt do it at first, and now it does I would bet something isnt right.
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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JohnB
Tech Moderator
Member # 969
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posted
You all do know that a oil pressure gauge (stock) will stay in the normal zone with 15psi of oil pressure. It doesn't take much.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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94gt
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Member # 3060
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posted
I figured it would be in the normal range with a low pressure, for instance mine always read between the a and l in normal
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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Cstang5.0
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Member # 4925
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posted
its not a stock gauge but i tryed the stock one too and it did the samething even when it is cold it is at 20psi
[ April 10, 2005, 01:38 PM: Message edited by: Cstang50 ]
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88 VERT slow sold
89 coupe stock ; )
02 yukon
05 focus
Posts: 1638 | Registered: Oct 2004
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silverLX
¯
Member # 3207
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posted
Pull the pan!!!!!!
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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