Question about 2009 GMC Yukon XL

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Yukon 2009 low engine oil pressure in the meter reading To a level slightly over the quarter Engine Oil 10 W. 30 What is the Problem Is it normal I apologize for my Rkkt Thanks in advance

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  • ahmad srabo Apr 30, 2010

    Thank you
    I hope a see the picture attached
    What do you advise me to use the
    10 W 30 oil for the engine
    Do you use oil, 20 W. 50
    Will see that I have a problem the engine oil pump
    Thanks sir http://up101.9ory.com/v/10/04/30/01/0342...

  • ahmad srabo Apr 30, 2010

    Thank you
    I hope a see the picture attached
    What do you advise me to use the
    10 W 30 oil for the engine
    Do you use oil, 20 W. 50
    Will see that I have a problem the engine oil pump
    Thanks sir http://up101.9ory.com/v/10/04/30/01/0342...

  • ahmad srabo Jun 12, 2010

    Yukon 2007, when underestimate the speed to 100 km
    And more speed in a voice Mphaji unsnaps the bottom of the car
    What is the problem when

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First off I believe you are using the incorrect weight oil. I am pretty sure you should be using 5w20 instead of 10w30. Check your owner's manual to be sure. At idle the oil pressure would be around 1/4 on the gauge and at highway speed it should read about 1/2. Make sure you are using a quality filter such as AC/Delco, Wix, or Purolator. If the oil pressure seems low is this vehicle not under warranty? If so, take it back to the dealer.

Posted on Apr 30, 2010

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  • NOT ME Apr 30, 2010

    I could see the photo quite well. I notice that the gauge is reading kilopascals which means you are not in the U.S.. From the techometer the engine is at idle and is running around 200 kPa which when converted to Pounds Per Square Inch (psi) is around 30 psi. This is a normal oil pressure at idle so you really have no problem. Just make sure to look in your owner's manual and use the correct weight oil. As you are in another country I cannot say what weight you should use. That is listed in your owner's manual.

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Possible dsmsge from driving weeks with high oil pressure? btw 2004 GMC Yukon XL Denali


No damage will occur. Have you checked the oil pressure with a manual test gage? If not do that and please understand GM oil pressure gages are prone to reading high pressure when the sender is defective.

Jan 19, 2017 | Cars & Trucks

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2009 Saturn Vue message flashing "low oil


The obvious answer is the engine has low oil pressure.
Assuming the engine oil level is ok, someone would need to check engine oil pressure with a mechanical gauge to find out if the problem is the engine or the oil pressure switch.

Jul 02, 2013 | Cars & Trucks

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How can i fix the oil pump


see this tips and fix it. God bless you
The oil pump supplies oil to lubricate your engine. If the oil pump is worn or is not turning, the engine will suffer a loss of oil pressure, which may result in engine damage or engine failure.
The first sign of trouble may be a low oil pressure warning light, a drop in the normal reading on you oil pressure gauge (if your car has one), or the appearance of ticking or clattering sounds from your engine.
As a rule, most engines only need about 10 PSI of oil pressure for every 1,000 RPM of engine speed. Oil pressure will read higher than normal when a cold engine is first started because the oil is thick. Oil pressure will gradually drop as the engine warms up and the oil thins out. So normal oil pressure on a warm engine cruising down the highway is typically 30 PSI up to 45 PSI.
SYMPTOMS OF OIL PUMP TROUBLE
The first thing you should do if any of these symptoms occur is to stop your car, turn off the engine, let it sit for a few minutes, then check the oil level on the dipstick. If the oil level is at or below the ADD line, add a quart of oil to bring the level back up to the full mark. Add as much oil as is needed to raise the level to the full mark. Then restart the engine. If the warning light remains on, or the oil pressure reading does not climb back up to its normal range, or the engine noise does not go away, you may have a bad oil pump.
The other possibilities include a bad oil pressure sending unit, or a problem with the oil pressure warning light circuit or oil pressure gauge.
OIL PRESSURE SENDING UNIT
If the engine is NOT making any unusual noises and seems to be running normally, and the oil level on the dipstick is FULL, but you are still getting a low oil pressure warning light or low gauge reading, the fault could be a bad oil pressure sending unit.
The oil pressure sending unit is mounted on the engine block. On some applications, there is a spring-loaded pressure-sensitive diaphragm with a switch inside the sending unit. This switch completes the circuit to the low oil pressure warning light if oil pressure drops below a certain threshold. The unit may stop working if the diaphragm inside fails, if the switch is stuck, if the small hole that allows oil to enter the sending unit becomes plugged, if there is a loose, corroded or broken wiring connector at the sending unit, or there is a fault in the wiring circuit between the sending unit and warming light.
On vehicles that have an oil pressure gauge (electronic, not mechanical), the oil pressure sending unit has a small rheostat inside that sends a variable voltage signal to the oil pressure gauge when the diaphragm moves. A worn spot on the rheostat or any of the other problems just described for the simple pressure-type oil pressure switches can cause a problem.
FORD'S FAKE OIL PRESSURE GAUGE
On many Ford vehicles that were built from 1980 through the 1990s, the oil pressure sending unit has two switches, a low pressure and a high pressure. These vehicles also have an oil pressure gauge, but the reading on the gauge is not a true indication of real oil pressure. As long as the pressure to the sending unit is between high and low, the gauge will read normal. If oil pressure drops and trips the low pressure switch, the dash gauge will now read low. Or, if oil pressure goes up and trips the high switch inside the sending unit, the dash gauge will read high. Consequently, don't rely on the oil pressure gauge for an accurate reading in these vehicles. It is only a gross indication if the oil pressure is low, normal or high.
OIL GAUGE PROBLEMS
If the engine is NOT making any unusual noises and seems to be running normally, the oil level on the dipstick is FULL, and you have replaced the oil pressure sending unit but are still getting a low oil pressure reading on the dash gauge, the fault could be in the wiring circuit between the sending unit and gauge, or the gauge itself might be bad.
Check the wiring connections on both ends as well as wiring continuity between the sending unit and gauge. If no wiring faults are found, hook up a pressure gauge directly to the oil pressure port on the engine and check oil pressure with the engine running. If the engine-mounted gauge shows normal oil pressure but the dash gauge is reading low, the problem is a bad dash gauge.
On the other hand, if the engine-mounted pressure gauge reads low and you have done all of the above, chances are the oil pump is worn, or it is not picking up enough oil because of a restriction or blockage in the pickup screen in the bottom of the crankcase.
OIL PUMP PICKUP PROBLEMS
The pickup tube has a screen on the end to prevent large chunks of anything bad that ends up in the crankcase from being sucked into the pump. But we are talking BIG chunks of debris, not normal wear particles or carbon or dust or other microscopic-sized abrasive particles that can cause pump wear over time.

Sep 28, 2012 | 1996 Toyota Tercel

1 Answer

The oil pressure is low at idle and rises with higher engine revs. Oil levels are ok, new oil approx 2000kms ago. Was a slight noise at one stage in the engine but went away after engine's revs in


It sounds as if the clearance that the bearings normally run in have been surpassed and need to be replaced. Higher engine revs will supply extra oil which will overcome any small discrepencies but constant running at this stage will result in faster degradation of all engine components concerned resulting in a more expensive repair. Shes basically worn out.

Feb 27, 2012 | 1993 Toyota Land Cruiser

1 Answer

At start up message low oil pressure comes on and goes out after about a minute. gauge reads 40 lbs.


What have you check thus far? Have you checked oil level? Normal? - Check your oil pump operation or diagnostic check codes. Low? - Add oil to top off.
Do you have a Check Engine Light on in addition to Low Oil Press. light? You may need to find out what "else" is going on with your engine by following up with a quick diagnosis check at your local AutoZone (if you've got them in your area) They'll check it for free.
My bet is that you either have low oil level and or your pump is malfunctioning.

Mar 08, 2011 | 2005 GMC Yukon Xl Denali

1 Answer

How do I check and possibly replace the engine oil pressure sensor in a 2006 GMC Envoy Denali?


Oil Pressure Test Check for proper oil pressure at the sending unit passage with an externally mounted mechanical oil pressure gauge. A tachometer may also be needed, as some specifications may require running the engine at a specific RPM.
  1. While the engine is cold, locate and remove the oil pressure sending unit.
  2. Following the manufacturer's instructions, connect a mechanical oil pressure gauge and, if necessary, a tachometer to the engine.
  3. Start the engine and allow it to idle.
  4. Note and record the oil pressure reading when the engine is cold. The engine may need to run at a specified RPM, if so check the vehicle's specification.
  5. Run the engine until normal operating temperature is reached.
  6. Check the oil pressure reading again with the engine hot and record the value. Turn off the engine.
Compare the hot oil pressure reading to the specification. If the reading is low, check the cold pressure reading against the specification. If the cold pressure is well above the specification, and the hot reading was lower than the specification, the engine may have the wrong viscosity oil. Change the oil, making sure to use the proper grade and quantity, and then repeat the test.
Low oil pressure readings could be attributed to internal component wear, pump related problems, a low oil level, or oil viscosity that is too low. High oil pressure readings could be caused by an overfilled crankcase, too high of an oil viscosity or a faulty pressure relief valve.

Oct 09, 2010 | 2006 GMC Envoy Denali

1 Answer

Past weekend check engine light comes on, engine sounds and feels fine. However the oil pressure is running slightly slow


Check that the oil level is full.If the oil has been in service for more than 4,000 miles, change it. Replace the oil pressure sending unit. If nothing changes, put a mechanical gauge on the engine and read actual oil pressure. Though "acceptable" low pressure is only 5lbs, I would never accept that as safe. Minimum pressure should be at least 20-25psi and normal running pressure between 35 to 45psi.
How low is "slightly low"?

Mar 22, 2010 | 1996 Jeep Grand Cherokee

2 Answers

Low oil pressure


If the engine is not making any noise.It is probably the oil sending unit that is defective.If you want to be sure you will have to install a pressure gauge and check the pressure when the vehicle is at normal operating temperature.If it is above 10 psi then replace the sending unit.It is located on the back of the motor on the block by the left cylinder head.You might need a special socket for it.Hope this helps.Good luck.

Jan 12, 2010 | 2004 GMC Yukon

1 Answer

What is the check gauges light


CHECK GAGES light (1) indicates a potential engine failure(low oil pressure, low coolant, coolant overheating) has occurred.
· Check gages and shut down engine. Gages should read as follows: Oil pressure 5 to 10 psi (34 to 69 kPa) at idle; Water Temp gage below 230 degrees (110 C).
· Check engine oil level (Para 2-11) if OIL PRESS gage indicates low reading. Check coolant level (Para 2-11) if Water Temp gage indicates high reading. Notify Unit Maintenance if levels are low.

If CHECK ENGINE light (2) is on, check engine oil pressure gage (3) and water temperature gage (4). If both indicate normal, proceed with mission and then notify Unit Maintenance. If either one does not indicate normal, stop engine immediately and notify Unit Maintenance


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3 Answers

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