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Low oil pressure

Oil pressure light comes on when started. oil pressure reading is much lower than normal.

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Oil pump might be going bad you will have to drop the oil pan to change it

Posted on Nov 03, 2012

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6ya6ya
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Posted on Jan 02, 2017

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txkjun
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SOURCE: Low oil pressure light coming on

SOunds like your oil pressure sending unit. It is right by the oil filter.

Posted on Dec 31, 2008

tennkntryboy
  • 10 Answers

SOURCE: low oil pressure light keeps coming on

sounds like the sending unit has sludge in the hole time to replace it

Posted on Jan 09, 2009

  • 1 Answer

SOURCE: Low Oil Pressure on 1992 Chevy 1500 Pickup Truck

1992 silverado pickup has a problem with the oil pressure Gage on the dash board fluctuate when i put break on or accelerate the gas 

Posted on Feb 14, 2009

haider_alhar
  • 90 Answers

SOURCE: oil pressure low suddenly

there is a big chance that your sensor is nedd to be replaced

Posted on May 31, 2009

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SOURCE: low oil pressure 93 GMC P/U w/350 motor w/205,000 miles gauge

While engine is running, open the cover where you add oil to engine and see if you see a good flow of oil, if good flow, could be as easy as replacing oil sending sensor. got to realize that if poor maintenance history your engine may not be building enough pressure at iddle to move your hydraulic operated valves, only when you rev it up it will pump enough to run smooth. if running engine too long, you may cause more damage to other engine components such as crankshaft and cam shaft bearings. if you can spare a few bucks, have a good mechanic check your oil pressure with a mechanical gauge. another cheap option is to replace oil pump. last resort if you love your truck as much as we do,replace engine or rebuild it. At 205,000 this is a normal symptom, other than timing chain problems, most engines don't make it that far. hope this helps!

Posted on Mar 01, 2010

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3 Answers

Oil light on after engine warm-up on idle


this means a mechanical gauge test is required to check actual pressure warm idling if low below 20 psi then the oil pressure pump relief is stuck open or engine bearing are worn

May 15, 2014 | 2005 Opel Astra 1.4

1 Answer

2001 f150 4.6 low oil pressure 2 or 3 minutes first start


Since you already know what your physical oil pressure is at idle I would try to get an accurate spec from Ford. if 10psi is normal the the problem is likely the switch or cluster.
If it is below spec it could be high mileage (normal bearing wear will lower idle pressure) a weak bypass spring in the pump, or a the wrong oil filter or oil.
If you are not hearing any "lifter clatter" or knocking when u start it, I wouldn't be too concerned about a bad pump or engine damage just yet.
Use only 5/30 or 10/30! anything thicker can cause cam damage due to oil starvation. Also going to long between oil changes can lower idle pressure as the oil looses viscosity and thins out.
According to factory wiring diagrams 2001 F150 does not have a pressure gauge , it has a warning light, however when I read the test procedure it talks about a gauge. either way, light or gauge, it uses a switch (not a sender) to signal the cluster that oil pressure is either above or below a certain value. again, I'm sorry, i don't know what that value is.
The instrument cluster receives ground through an oil pressure switch. When oil pressure is above a certain pressure the switch closes and the instrument cluster then turns out the light or indicates "normal" oil pressure. if the pressure is below a certain value the switch is open (the circuit to the cluster is not grounded) and the light will be on or the gauge will read no pressure.
The light or gauge is NOT directly controlled by the switch. If it has a gauge the gauge will show an increase in pressure when engine RPM increases (calculated by the cluster) it is not showing true pressure.
if your idle pressure is normal, you can test the by grounding the circuit at the switch, key on, if the light is out or the gauge reads normal the problem is the switch (assuming that physical pressure is above spec).
If the idle pressure is slightly below spec you could try an oil stabilizer like Lucas or STP and keep your oil change intervals to 3500 miles.
I hope this helps, feel free to contact me for more information

Robert Grove, ASE Certified World Class Technician, Automotive Hall of Fame 1996
Wego2u Mobile Mechanic
Mobile Mechanics in Orange County, CA

Jul 05, 2013 | Cars & Trucks

1 Answer

Oil light comes on when idling oil level is good


faulty oil pressure switch (cheap), worn oil pump (not pumping enough oil at low revs) but most likely worn shells or crankshaft (allows oil to pass too quickly lowering oil pressure - just not noticable when the engine is reving 'cos there's a lot more oil bieng shifted by the pump)

Oct 02, 2012 | Ford Cars & Trucks

1 Answer

Why is the oil light on ?


Hello....When ever the oil light comes on and stays on..this is an indication of a low oil pressure reading...I would start with checking your oil level in your engine..or have service personnel check it...It could also be caused by viscosity breakdown of the oil...which can result in lowered oil pressure especially if it is way overdue for an oil change...and on very rare intsances...a faulty oil pressure sender or oil pump could be the trouble...But I would start with the oil level....and go down the list...I hope this was helpful.....PEACE!!!!!

Feb 29, 2012 | 1996 Plymouth Breeze

1 Answer

2001 Jeep Grand Cherokee Laredo approx 147000 miles. Recently notices oil pressures going up to 80psi periodically when driving. If I turned off the engine and restarted it would read normally. Within...


Very first thing you need to do is install a mechanical pressure gauge on there to verify what you see on your gauge. If the actual pressure is low, then it's time to start looking inside the engine. If not, then you need to trace out the electrical problem but will know the engine is safe.

Jan 29, 2011 | 2001 Jeep Grand Cherokee

2 Answers

Low oil pressure after engine warms up in 94 blazer with 4.3


I have a 99 blazer and ever since I have owned it, it reads lower in pressure when idling, but will go up too 40 while driving. This is normal for the vehicle. If the pressure gets real low, and stays low, it means its time for an oil change.

As long as the pressure goes up when you give it gas, it is fine.

Jan 09, 2010 | Chevrolet Blazer Cars & Trucks

1 Answer

My low pressure oil light keeps coming on when i stop and i just got my oil changed. The oil is not low. What could be the problem?


Hi,
That means LOW PRESSURE , not low in volume. Pressure is measured in PSI. The reason that your light comes on when you are at a stop is because your engine goes to idle at a stop and would normally have lower pressure. That doesn't mean you should get a low pressure light though.. I would have it checked by a pro right away as this could be your first warning before a serious problem.

Hopes this Helps,
RSMITH972278
P.S. PLEASE RATE ME

Oct 19, 2009 | 2003 Dodge Neon

1 Answer

Oil pressure sometime goes too low causeing the oil light to come


Of course you realize that the pressure fluctuates according to your acceleration right? If it's going lower than it normally did than there can be a compression problem with the engine or possibly the oil pump is putting out a low output.

Mar 12, 2009 | 1993 Jaguar XJ6

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