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Where is the oil sending unit located on my 1999 gmc Sonoma sls

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Chuck Smith

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99 to 2007 4.8, 5.3 and 6.0 are all located the same place. They are at the back of the engine about right in the center. Remove the Black Cover on top the engine. With a flashlight and you crawl up on top the engine and look behind the engine towards the top and you should see it. It has an electrical connection on top, you will need a socket that fits and about an 8 inch extentions to get it up and on so you can get your ratchet on. Hope this helps you.

Posted on Jul 26, 2019


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  • 31 Answers

SOURCE: Can not find oil pressure sending unit on engine.

yes it will be on the lower part of the engine block. i believ on passenger side.

Posted on Jan 18, 2009



  • 1 Answer

SOURCE: Location of oil pressure sending unit on 2003 GMC 4.3L

2 the right of dist. cap

Posted on Apr 07, 2009


  • 40 Answers

SOURCE: where is the fuel filter located 2003 gmc sonoma please fill this out and they should be great at helping you

Posted on Aug 07, 2009

James Young

  • 4044 Answers

SOURCE: Trying to find location of oil pressure sending

Your best bet is to get the Haynes Repair manual on your vehicle to locate this and make this repair.

Posted on Jul 20, 2010



  • 85239 Answers

SOURCE: Where is the oil pressure sensor / sending unit on

It is at the very top rear of the engine behind the intake to the right of the distributor on a thin lip of metal of the engine block.

Posted on Jan 13, 2011

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