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GMC Savana - oil sending unit problem??

I have a 2005 GMC Savana 3500 V8 6.0L. The oil gauge goes straight to maximum and stays there. It also does this even if i only turn the key to the on position without starting the van. I'm assuming that it is a faulty seeding unit. I was just wondering if anyone agrees with this assumption, is there a way to manually check the pressure, where is the sending unit located and does anyone know where i can find instructions on how to replace it.

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 75 Answers

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

  • 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

emissionwiz
  • 75197 Answers

SOURCE: cant find the location of this oil pressure switch on my 1999 gmc savana 1500 van with a 350 engine

very rear of engine center of block behind intake.

Posted on May 12, 2009

  • 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

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