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My oil gauge for my 2006 Chevy silverado v8, 2wd does not work. It reads 0 pressure and stays until at a stop and radically jumps.

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  • Cars & Trucks Master
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Sounds like you need to replace the oil pressure sending unit. Should be located on the engine down by the oil filter.

Posted on Apr 21, 2013

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2005 Chevy Silverado show low/erratic (0-20 lbs) oil pressure.


More then likely the sending unit is faulty, but to be safe hook up a mechanical test gage at the oil pressure sender port and check oil pressure hot engine, if it is steady then replace the sending unit.

Jul 28, 2017 | Chevrolet Silverado 1500 Cars & Trucks

2 Answers

I JUST BOUGHT A 2003 EXPLORER XLT [159,000 MILES ] ,MY OIL GAUGE AND BATTERY GAUGE STAY AT THE 1/2 WAY MARK WIYH ENGINE RUNING,DROPS BACK TO `0` WHEN I STOP THE ENGINE,BATTERY STAYS THE SAME ,WHEN I TURN...


All your gauges are working. The gas gauge Is also working. When you fill it, you will fill over the limit the fuel level switch will go by a couple of gallons. So the gauge will not drop for a few miles. until you use up the excess fuel

Aug 26, 2011 | 2003 Ford Explorer

2 Answers

I have a 2006 chevy silverado 5.3L..When in idle oil pressure gauge goes to 80 and when i accelerate ail pressure goes to zero ...is it the oil sending unit?


It could be the sending unit. If the truck is low on oil it will cause something similar. Be sure the oil level is topped up. The only way to be sure it so measure the actual oil pressure at the engine with a proper gauge..

May 07, 2011 | 2006 Chevrolet Silverado 1500 2WD

2 Answers

03 gmc envoy with 5.3 140000 miles. Oil pressure reading fluxuates between 0 and 40. When problem first started pressure read 80. When vehicle was new it stayed at midpoint (40) vehicle has plenty of oil....


There may be a loose wire or the gauge or sending unit may be going bad. The first thing I would do is to hook up a temporary oil pressure gauge, not using the old one at all. With this watch gauge while driving and see what readings you get. If the readings still jump around you have a pump that is getting weak and failing, If that is the case the pump should be replaced, but with high milage you may consider rebuilding the entire engine. If the readings stay normal start checking for a loose wire at gauge or sender. Then check sender, then gauge and replace as needed.

Oct 02, 2009 | 2003 GMC Envoy Xl

3 Answers

Oil pressure on a 2004 5.3 liter silverado at idle is around 20


The pressure to be most concerned with is the reading in gear at idle with engine warmed up...Low end really should not be below 20. If pressure wanders, change the sending unit and check actual pressure with a mechanical gauge if necessary. The age and quality of your oil, as well as temperature all play a part in pressure, as well as internal wear from time & miles of use. If pressure changes with rpm, that is normal. 40psi is good while driving.
need more info just ask.

Apr 27, 2009 | 2004 Chevrolet Silverado

2 Answers

Changed oil pressure switch,still no oil pressure


The fuel pump on that model runs through the oil pressure switch so that if the truck looses oil pressure,It kills power to the fuel pump to prevent engine damage.you need to find the cause of the low oil pressure reading(possibly a bad oil switch).That would be the cheapest place to start,or have it checked with a mechanical gauge.Good luck,
ChevRev

Mar 30, 2009 | 1999 Chevrolet Silverado 1500

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