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Oil sending unit 2005 gmc yukon 5.3Lengine reads 80psi as soon as key is turned on and when started

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Do you have a pre lube system hookesd up? It is a good thing to have pressure in system before cranking. It eliminates dry starts which are the biggest cause of engine wear.

Posted on Oct 31, 2012


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 2005 gmc yukon xl denali service ride control

it has to do with your air ride suspension best bet is take it to the dealer there is probably a problem with a level sensor. hope this helps you

Posted on Mar 16, 2009

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SOURCE: oil pressure gauge goes to 80 psi when the truck key is turned on

chances are your sending unit is not bad. These dashes have had alot of problems with stepper motors failing in the instrument cluster. does it go to zero when key is off? is it erratic? changes where it sits when running and when off? These are all problems within the cluster itself. It is not cheap to take this to the dealer. THey will want to replace the cluster. these clusters can be repaired for half the cost if you know where to go. Not sure yet what the rules are on here but i can repair these for about 325 verses over 600 from dealer and then reproggramming costs! One other note. Chevy has a recall on these! call you local dealer and ask what the criteria is for the recall. You may be able to get it repaired for free if you meet the time frame and mileage requirements.

Posted on Feb 01, 2010

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SOURCE: Where is the oil pressure sending unit oa a 2005

my 2004 yukon engine oil sensor is at its highest, what is the problem

Posted on Apr 13, 2010

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SOURCE: Need to reset oil life

it depends........ if you have controls on the steering wheel or not. If you do, then go through the menu until you see OIL LIFE then hold in the reset button (looks like a backwards "L" with an arrow on it). Hold the reset button in until it reads OIL LIFE RESET or OIL LIFE 100%. If you don't have controls on the steering wheel, turn key on (engine off) and depress the gas pedal to the floor 3 times, now turn key off. crank engine up and see that it has reset, if not try it again.

Posted on Dec 21, 2010

  • 836 Answers


on the top rear of the block.

Posted on Jan 22, 2011

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I have a 2005 GMC Yukon Denali with 88,000 miles on it, when i first purchased the truck earlier in the year, the oil pressure gauge was reading all the way to 80, now when i press on the accelerator the...

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Not sure about your car, but alot of times the oil gauge sending unit is kinda close to the oil filter, and maybe during the oil change the wire connection was removed or damaged. Turn the key on and engine off ,and if the gauge reads 80psi then the sneding unit might be the problem

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Well first the GM oil pressure sending units are notorious for false readings, so what you must do is remove the oil pressure sending unit and plug in a test mechanical gage to verify the engine has acceptable oil pressure, after you are certain the pressure is ok replace the sending unit, it requires a special socket to remove it, the socket is about $5.00 USD. There is a deep socket and a shallow, so check the sending unit for the correct socket fit.

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