Tahoe & SuburbanThe power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.
Platform: GMT 400, 800, 900
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Remove the intake manifold. Refer to Intake Manifold Replacement .
Disconnect the engine harness electrical connector (1) from the oil pressure sensor.
If not equipped with active fuel management perform the following step, using J 41712 or equivalent, remove the oil pressure sensor (706) and washer (707).
If equipped with active fuel management perform the following step, using J 41712 or equivalent, remove the oil pressure sensor (706) and washer (707).
Apply sealant to the threads of the NEW oil pressure sensor. Refer to Adhesives, Fluids, Lubricants, and Sealers .
Notice: Refer to Fastener Notice in the Preface section.
If equipped with active fuel management perform the following step, using J 41712 or equivalent. Install the oil pressure sensor (706) and washer (707).
Tighten the sensor to 35 N·m (26 lb ft).
If not equipped with active fuel management, perform the following step, using J 41712 or equivalent. Install the oil pressure sensor (706) and washer (707).
Connect the engine harness electrical connector (1) to the oil pressure sensor.
Tighten the sensor to 35 N·m (26 lb ft).
My check engine light came on and the code read a oil pressure sensor/switch. I got the part but would like to know where to locate it. and the best way to access it.
Thanks, The code read was P0523. Is that the correct fix. Im a novice to this so need a little more detail on location of sensor. Some one said the sensor was next to the oil filter. Correct? Easy fix or do I need mechanic?
Remember that the DTC just gets you in the neighborhood of the problem. The FSM has detailed fault trees to track down the ultimate faulty part. Yours indicates an open/high resistance or a short to voltage. Now that could either be caused by a faulty sensor or a wiring fault. The FSM contains concise troubleshooting steps.
paintit: I have a complete set of the 2007 Factory Service Manuals (FSM) (like new condition) that I'll sell you for $100 plus shipping. Detailed instructions for lots of stuff.
On the old generation SBCs, the oil pressure sensor was either at the back of the block near the distributor or down on the side above the oil filter. Oh for the old days.
2010 Sheer Silver Tahoe LTZ (all options but sunroof, power boards), GM (body color flaps, rear console, 3rd row mat, 2-Way Remote, chrome gas door, Esky rack), Eagle Eye LED tails, SLP dual tip exhaust, Silver bow-ties/rear wiper, Catch-All mats, AlphaTherm washer fluid heater, Putco chrome mirror covers, silver calipers, board chrome trim, tint, GMPP Major Guard
The above instructions state to remove the intake manifold, before I did that, I would check to see if its worth the effort to try and reach it and if its possible to do it without removing the intake, may take longer but one less can of worms...
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I was driving along the other day and my turn engine off light came on. The oil pressure gauge dropped to 0 and like others if I floor the engine then the gauge goes to 30 or so then bleeds back down to 0. I checked the oil and there is no sign of contaminants such as water or gas. The oil is full. Everyone is talking about codes but I see none. Is this something I will have to get a computer to check for? I am out of cash at this point and taking it to the dealer is going to have to wait. The question is how much damage if any I am doing to the engine. My wife has been driving it about 3 miles to work every day while I drive her car. The engine sounds fine when it is warmed up. The suburban has hard started for several year now where you here small noise when you first start it until the oil gets distributed. At least that is what the dealer told me the noise is. Let me know what you think please.