Question about Jeep Grand Cherokee

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OIL PRESSURE GUAGE DROPS TO ZERO WHEN ITS RUNNING

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  • Jeep Master
  • 6,982 Answers

If there is no tapping from the engine, likely the problem is a bad pressure sending switch. If there is a noise it may be from lifters or bearings and you will need to put a mechanical gauge on it to read actual oil pressure (your gauge is electro-mechanical and not as accurate) Low pressure can be from obstructed oil pump screen or bearing problems. Replacing pump is usually a waste of time unless you correct the real problem.

Posted on Oct 07, 2009

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Posted on Jan 02, 2017

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Gypsybaron
  • 80 Answers

SOURCE: Low Oil Pressure? 1992 S-10 Blazer

I suggest you pass this one by - the oil pump probably is shot and you'll get a hefty repair bill on top of the purchase price!

Posted on May 16, 2009

  • 17 Answers

SOURCE: 2002 chevy trailblazer. 1.oil pressure gauge

the sensor is on the side of the engine block. there's two thing that monitors oil. a pressure switch turns you oil light on and you oil pressure sensor the operates your gauge, start with your sensor. that is near you oil filter that is where it gets it pressure reading from

Posted on Jul 24, 2009

  • 6982 Answers

SOURCE: difference between oil sending unit and the oil pressure switch

Same part...make sure you get one for gauge, not idiot light though. If the engine has any knocking or ticking when pressure drops do not drive it and have a mechanical gauge installed to check actual pressure. Parts often have different names for same item...your driveshaft is actually called a propeller shaft!!!

Posted on Sep 18, 2009

  • 128 Answers

SOURCE: oil pressure on a 2005 chevy 2500 8.1

could be the sending unit a loose wire or your oil pump is done check your oil to make sure its topped up

Posted on Sep 19, 2009

honeymokey
  • 3113 Answers

SOURCE: oil pressure guage occassionly drops to 0 psi and warning light g

Get it checked with a mechanical gauge. Replace sensor.

Posted on Sep 28, 2009

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