Question about 2006 Chevrolet Trailblazer

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Oil warning light with wrench came on and stays on what does this mean? oil is full no leaks i can see and the oil gauge goes between 40 and 80 when driving what gives?

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The oil pressure switch coud be going bad, may need an oil change or the mileage was not reset after the last one, or the oil pump could be going bad. I am more geared towards the first two possibilities.

Posted on Jun 10, 2009

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Posted on Jan 02, 2017

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Why would the oil light stay on?


That depends on the type of oil warning light being displayed. There are 2 types of warning lights

1. Low oil pressure light which all cars have
2. low oil level light which some cars have.

Low OIL PRESSURE warning means the oil pressure is below minimum and when this happens there will be insufficient lubrication of many engine parts because sufficient oil cannot get to all parts of the engine it is required to lubricate. Until the cause is identified and rectified the warning light will remain. If you run your engine with low oil pressure you will cause expensive damage to internal engine components.

Low OIL LEVEL warning means the oil in the sump has dropped to a dangerously low level (which may be due to an oil leak or abnormal oil consumption by the engine.) This warning means the oil level needs to be topped up and the warning will stay displayed until you top up the oil. Running the engine with low oil will cause expensive engine damage.
Since it is a 2 minute job, Oil levels should be checked fortnightly as a minimum, together with radiator coolant and power steering fluid levels, if you run the car most days each week as most people do.

It is possible for a warning light to remain displayed when the cause has been dealt with because there is a problem with the sender unit. However it needs to be established with alternative checks that the problem has been fixed before investigating if there is a problem with the warning light itself.

Nov 21, 2015 | Cars & Trucks

1 Answer

HI I HAVE A 2002 SATURN L300 AND I HAD AN OIL CHANGE TO STOP THE WRENCH LIGHT FROM COMING ON AND ITS STILL ON WHY IS THAT? I THOUGHT THE WRENCH LIGHT WAS ONLY FOR MAINTENCE. THANK YOU


If you reset the monitor when you had the oil changed, and that light is for oil change due, the light should have stayed off.
Usually the wrench warning light is a service vehicle warning, not for oil change is due.
Your owners manual should explain each warning light.
You may have to get the body computer checked out by a shop or the dealer.

Oct 08, 2015 | Saturn Cars & Trucks

3 Answers

Why does the oil warning light come on when the oil level is full oa a 1987 dodge ram 50 truck


Your oil light is not a level indicator, it is a pressure indicator. If your oil light is on with the engine running, it either means that you have a bad pressure sender or you have no oil pressure. I suggest installing a mechanical pressure gauge to verify if you do or do not have oil pressure. If with the mechanical gauge you do prove to have oil pressure then simply change your oil sending unit. But if you do not have oil pressure with the mechanical gauge, then you must drop the oil pan and find out why you have no pressure.

Jul 13, 2015 | Dodge Cars & Trucks

1 Answer

My 2003 Saturn VUE is saying that I'm over-heating (both the warning light stays on, and the gauge stay pegged hot) even after my car has been sitting in the driveway for 2-3 days (or longer). There is not...


i'd change the engine temperature sender unit , or just disconnect it for a while and see if the gauge symptoms disappear , if they do then change the temp sender unit,if the symptoms remain i'd say get the OBD codes read as may have a faulty dash component

Jul 04, 2014 | 2003 Saturn VUE

3 Answers

The oil light on my 1998 Camry is on but I just got the oil changed


If it is the oil pressure warning light showing, the next thing to do is to remove the oil pressure sender unit and screw in a gauge to see if the sender is at fault.


http://www.2carpros.com/questions/2001-jeep-wrangler-2001-jeep-wrangler-oil-pressure-gauge-drops-and-oil-light-c


After that it could be that the over-pressure relief valve in the oil pump has stuck open.

Jan 16, 2013 | 1998 Toyota Camry

1 Answer

Engine light is on, oil light is on, hazor light keeps beeping. I have a SAAB 2002 93.


An oil pressure warning light or low gauge reading means one of two things: either your engine has dangerously low oil pressure, or the oil pressure sending unit that triggers the warning light (or operates your gauge) has failed.


----------------------obd2express.co.uk

Nov 30, 2012 | Cars & Trucks

2 Answers

Oil lights stays on


If the engine is not making any noise then it is likely not a real oil pressure problem. Just to make sure have the pressure checked by a shop with a mechanical test gauge and if found to be inspect replace the sending unit and that should in most cases cure the problem. I assume this is a pressure indicator.

Sep 17, 2012 | 2005 Dodge SRT-4

1 Answer

Oil light comes on when car idles


The light means the oil pressure has dropped below 10psi.
You could replace the oil pressure switch and see if the light stays off, or have the pressure checked with a mechanical gauge.
Make sure the engine oil level is full.

Aug 30, 2012 | 2001 Chevrolet Cavalier

1 Answer

The oil pressure warning light is on with a wrench showing beside it. I just changed the oil and there are no leaks. Oil pressure is 45 on the pressure gauge. What is causing the light to stay on even...


Its hard to say for sure but chevy uses the oil pressure sending unit as a back up power system for the fuel pump so if the fuel pump relay blows out power will go to the pump through to oil pressure unit so even though the gage is working it could be a problem inside the oil pressure uint for this secondery back up fuel pump system. Dose the gage stay at 45 PSI when the light is on or drop down when the ignition is turned off if it holds pressure i would look at the pressure sending unit its probably not giveing a correct reading not to say you have an problem with your oil pressure its to new for that but you need to be able to trust the reading

Dec 17, 2010 | 2008 Chevrolet Trailblazer

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