Question about Chevrolet Colorado

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Oil pressure sending unit

Low oil pressure com on after driving a while when the rpm is below 1000. it on and off. where is the unit, its 05 colorado 2.8 ltr

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  • Chevrolet Master
  • 453 Answers

You should check the oil pressure with a mechanical gauge. If that gauge also reads low you probably have a major engine problem. If the pressure is normal on the mechanical gauge you have a problem with the electric gauge. Probably the sender, dash unit or wiring.

Posted on Mar 28, 2014

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Posted on Jan 02, 2017

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roedmondson
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SOURCE: Where is the oil pressure sending unit on 2004 Dodge stratus

Most likely the oil pressure switch may be damaged. This is a simple procedure. Change and observe the results

Posted on Jan 23, 2009

  • 7353 Answers

SOURCE: 2006 Yukon Denali, oil pressure gauge malfunction

Most likely the oil pressure sensor is bad. Its located in the very rear of engine on top of bell housing area.

Posted on Oct 30, 2009

peterrance19
  • 399 Answers

SOURCE: where is the oil sending unit on a 2001 ford

hi the only problem driving it is not knowing ? its located on the front surface of the drivers side cylinder head near/next to oil filter hope this helps if so please rate it

Posted on Nov 20, 2009

  • 1 Answer

SOURCE: where is the oil pressure sending unit on 2004 dodge stratus?

per the Haynes manual for the 95-05 Dodge Stratus on the 2.0L & 2.4L DOHC 4 cyl engines, the oil pressure sending unit is located at the left end of the rear side of the block. On 2.4L SOHC 4 cyl engines, the sending unit is located at the left end of the rear side of the block. On 2.5L & 3.0L V6 engines, the sending unit is located on the oil filter housing, on the front side of the block. On 2.7L V6 engines, the sending unit is located at the left end of the rear side of the block. To access it, remove the heat shield.

Posted on Dec 23, 2009

fixitriteman
  • 431 Answers

SOURCE: LOW OIL PRESSURE ON 2007 GMC SIERRA 1500. CHANGED

have it tested using a manual gage if still low then main baring ore most likely bad that would mean a over hall if is really low and bearings bad should be making rattle noise when started up first few seconds

Posted on Mar 11, 2010

Testimonial: "thanks alot.truck is not making a rattling noise.we did check it with a manual gauge.it read about 10 at idol. press. gets better as you incr speed"

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High temp low oil pressure light comes on after driving for a few minutes, then off when engine at driving rpm. At stop light (idle or low rpm) light comes back on. Normal driving it goes out.


You need to find out why you have low oil pressure. It is normal that as engine rpm's increase, the oil pressure will rise- the oil pump is moving oil faster. Even though your light goes out, you could still have critically low oil pressure. There should be sufficient pressure at idle to keep the light off. The light will come on when your oil pressure is almost nil- I believe for some it's as low as 8 psi. Normally, oil pressure at idle is specified anywhere from 15 to 40 psi. You would have to check specifications for your Expedition. To verify oil pressure, hook up a mechanical gauge at the oil pressure sending unit on the engine block. Check with a local shop.

The causes run from easy, simple to budget busting ruin. Low oil level, wrong grade oil, real old oil, oil leaks, internal oil leaks, worn oil pump, worn crankshaft bearings. It was pretty common on older very high mileage cars to have a fluttering oil light at stops and idle. It was time for a rebuild, or time to look for another car.

Jul 06, 2015 | 2003 Ford Expedition

1 Answer

Low oil light on


If you have the correct amount of good quality clean oil in the truck, use a mechanical gauge to check actual oil pressure. If all is well, replace sender unit.

Mar 28, 2014 | 2005 Chevrolet Colorado

1 Answer

Low presure oil


first thing check is the engine oil level.if oil level okay check oil pressure should be for the 4.2 engine oil pressure should be 12 psi @ 1200 rpm for the 5.3 oil pressure should be 18 psi @ 2000 rpm if oil pressure good problem in the oil pressure sending unit. if oil pressure is low problem faulty oil pump or worn crankshaft bearings if oil pressure low engine will have rod knock.make sure you are using correct oil viscosity if oil too thick you will have low oil pressure oil too thin you will loose oil pressure.

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My low oil light comes on while trying to crank my car and car stalls; will not start until I keep trying a couple of times. After it starts it runs fine and then shuts off after backfiring sometimes and...


LOW OIL PRESSURE WILL CAUSE OIL PRESSURE SWITCH OR SENDING UNIT TO DISABLE FUEL PUMP.CHECK FOR OIL PRESSURE.REMOVE OIL PRESSURE SENDING UNIT SCREW IN OIL PRESSURE GAUGE TESTER INTO BLOCK WHERE OIL PRESSURE SENDING UNIT GOES TURN ENGINE OVER CHECK FOR OIL PRESSURE SHOULD BE 18 PSI @ 2000 RPM. BESURE TO WRAP TEFLON PLUMBERS TAPE AROUND THREADS TO THE OIL GAUGE PRESSURE TESTER OIL WILL SPRAY EVERY WHERE.IF YOU ARE GETTING NO OIL PRESSURE.YOUR OIL PUMP FAULTY.YOUR ENGINE CRANKSHAFT BEARINGS WORN OUT.WORN DAMAGED CAMSHAFT OIL PUMP DRIVE GEAR OR OIL PUMP DRIVE ROD DAMAGED OR BROKEN. IF OIL PRESSURE OKAY OIL PRESSURE SENDING UNIT IS BAD.

Sep 28, 2011 | 1994 Chevrolet Caprice Classic

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CAN A OIL PRESSURE GO DOWN TO 25 WHILE IN GEAR AND 40 WHILE HITING THE GAS IT SHOLD STAY AT 40 45 NORMALY NO MATER WHAT RIGHT ITS A 2000 DENALI 4X4 I DO HAVE ISSUES WITH 02 SENSORS IS THAT THE REASON WHY


Oil pressure is not constant, while idiling the pressure is less than when accelerating. Usually when the oil pressure gauge fluctuates it is a sign of low oil level.

Feb 04, 2011 | 2000 Chevrolet Tahoe

1 Answer

Oil light comes on when braking or low rpm.goes out if you raise rpm


Stop driving the vehicle and have oil pressure tested as soon as possible. This is the most important sensor for the engine's reliablity. Good possiblity that the oil pump is going out and will need to be replaced.
If oil pressure is good replace oil sending unit

please vote if this helps

Aug 21, 2010 | 1997 Chevrolet Cavalier

1 Answer

OIL LIGHT GOES OUT AT 1000RPM OTHER WISE ITS ON 1 CHANGED OIL TWICE 2 RPL OIL SENDING UNIT 3 PERFORMED MOTOR FLUSH


I think you should have an accurate mechanical oil pressure test gauge installed in place of the oil sending unit and check to see what the actual oil pressure is. If it's 15 psi or so at an idle and about 35 psi or higher at 2500 rpm then your pressure is good and means you have some sort of issue between the sending unit and gauge. If the pressure is low, say below 10 or 5 psi at an idle with a warm engine and doesn't improve much at higher speeds then you actually do have low oil pressure, most likely due to worn bearings inside the engine. An accurate test gauge should tell the tale and help you figure out what is wrong. Hope this helps out a bit!

Jul 14, 2010 | 1992 Lexus Ls 400

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I have an 198 k5 blazer wth a 350 small block . it shows no oil pressure at idle but when i drive it or rev it up the oil pressure goes to 35-40 lbs of pressure . the engine sounds great no knocking or...


Sounds to me like your oil pump is bad, not pumping sufficient oil at low RPM's. If the gauge shows pressure when driving or revved, the sending unit is working

Apr 02, 2010 | 1991 Chevrolet S-10 Blazer

1 Answer

Oil light on at stop


engine oil pressure may be low remove oil pressure sending unit and install a pressure gauge check for pressure while warm if pressure is ok replace oil pressure sending unit oil pressure at idle should be between 5-15 psi at min

Nov 17, 2009 | 2006 Dodge Stratus

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