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Oil light trailblazer

Oil pressure light stays on too long on 2005 trailblazer. suggestions?

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Check oil pressure with a gauge. The sender is electronic and could be the issue. Also oil filter could have a bad check valve. Change the oil filter, oil and sender. If the problem is still there you have worn engine bearings and major issues are coming your way.

Posted on Jan 01, 2014

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Posted on Jan 02, 2017

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greg_margo
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SOURCE: how to reset oil light after oil change on 2005 trailblazer

  1. Turn the key to the "ON" position
  2. Press the accelerator all the way to the floor 3 times within 5 seconds
  3. You should see the oil light flash, once it stops flashing, turn the key off
  4. Wait 10 seconds before starting the vehicle, the oil light should now be reset
  5. If this doesn't reset the light, repeat steps 1-4 paying careful attention to pressing accelerator all the way to the floor 3 times within 5 seconds
Best of luck.
Greg

Posted on Aug 10, 2009

roniecon
  • 6927 Answers

SOURCE: oil pressure at 0 on 2005 trailblazer

It sure sounds like the oil sending unit is at fault,now sometimes,not always,the oil sending unit will seep oil or leak oil if they go bad,but like I said,not always,change the unit,and the oil and filter just for precaution.

Posted on Apr 21, 2010

  • 22 Answers

SOURCE: I own a 2005 Chevy Trailblazer. My oil pressure

could be the oil pump in the motor.

Posted on May 29, 2010

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On my 2005 Trailblazer the oil light stays on longer than the rest of the warning lights. Is this a concern?


If you live in a cold climate then oil takes longer to warm up, this may account for the time lag.if you live in a fairly warm place then the oil is getting quite thick and viscotic.This may suggest its time for an oil change including filter.if this has been recently done then it may be the oil pressure switch.also worn engines have lower compression so the oil pressure takes longer to rise.

Dec 08, 2015 | 2005 Chevrolet TrailBlazer LS

1 Answer

Oil light stays on


Check the oil pressure if ok change oil sending unit it maybe shorted or the wire shorted.

Dec 22, 2011 | 2005 Chevrolet TrailBlazer

1 Answer

I have a 2005 trailblazer. The oil pressure gauge is ffine running around 40-50. When I come to a stop it drops to zero (under 1000rpms) I change the oil last night and it stilldoes this


The correct way of checking this is to put a mechanical test gauge on the engine and check the actual oil pressure. (your gauge is electro mechanical and it could have a "dead spot" in it.) However, if you don't have a test gauge, buying one or having a shop test it will cost you far more than the actual sending unit would. Therefore, providing that the engine isn't knocking or tapping while the gauge reads "0" ( which would indicate that the pressure was indeed low) I'd suggest that you replace the sending unit and see if it corrects the problem. The unit generally costs around $25.

Jun 23, 2011 | 2005 Chevrolet TrailBlazer

2 Answers

Oil pressure at 0 on 2005 trailblazer


It sure sounds like the oil sending unit is at fault,now sometimes,not always,the oil sending unit will seep oil or leak oil if they go bad,but like I said,not always,change the unit,and the oil and filter just for precaution.

Apr 21, 2010 | 2005 Chevrolet TrailBlazer

1 Answer

2005 ext trailblazer has a problem with the oil pressure gauge. the check presure light on the dash comes on that the pressure goes back to normal. get a ticking noise from engine when this happens?


Don't mess with a potential low oil pressure. Tow it, don't drive, to someone who can check out the oil system and make sure it's working right before you run the engine. If you run it even long enough to drive it to the service shop and it does have a problem, you can wreck the engine bearings. It may be nothing, but it's not worth the risk.

Jan 09, 2010 | 2005 Chevrolet Trailblazer Ext

3 Answers

I have a 2005 trailblazer. I got my oil changed


Could be either a gauge gone bad, or the sending unit. Unplug the oil sending unit with key on to see what the gauge does.

Nov 08, 2009 | 2005 Chevrolet TrailBlazer

1 Answer

Have a 2005 TrailBlazer, Almost everytime I drive it for 30 -45 min the Oil gauge start to slowly drops to zero. If I turn it off for awhile its back up to 42ish then it slowly goes down again, I check the...


get under the car and see if it seems wet or if anywhere is leaking, and does the car act any differently? If you let it drop to 0 is it running fine? If the car doesn't seem to have an issue then it's most likely you need a new sending unit for your oil pressure

Sep 12, 2009 | 2005 Chevrolet TrailBlazer

2 Answers

My 2003 GMC Sierra Z71 's oil pressure gauge goes to 80 when I start up and stays there and does not move.


the oil pressure is always high when you start it,the oil is cold and creates a different reading.
a few things...to consider
oil pressure sender defective
too much oil
wrong oil type

Dec 01, 2008 | 2005 Chevrolet Trailblazer Ext

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