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post #1 of 7 (permalink) Old 10-01-2012, 10:57 AM Thread Starter
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Exclamation Oil Pressure Light...please Help

I own a 2010 Chevy Cobalt with 53,000 miles on it (it used to be a rental). For the past week now the oil pressure light has been flickering on and off at random times. I would assume that it's an electrical problem because it doesn't stay on, but now it's flickering on and off a little bit more frequently. Any Ideas on what it could be?

I talked to a mechanic yesterday and he was saying these engines are pretty solid and that I shouldn't be seeing any problems with oil pressure, especially with how new it still is. He wants to change out a sensor and see if that works, what are your ideas?

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-Jarrett

Oh! My oil level is exactly where it needs to be and I just got the oil changed again yesterday. Been using Castrol 5w-30 Edge Synthetic
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post #2 of 7 (permalink) Old 10-01-2012, 11:01 AM
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Sounds like an issue that should still be under warranty, have you checked with your dealer to see if it is?

Could be the sensor, but thats not very common.


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post #3 of 7 (permalink) Old 10-01-2012, 11:19 AM Thread Starter
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Therein lies a problem, i bought it from hyundai back in feb. so the 3 month warranty they give with used cars....that's long gone

---------- Post added at 11:19 AM ---------- Previous post was at 11:08 AM ----------

Could it be the Oil Pressure Switch? Is that the sensor?
and what's the sending unit?
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post #4 of 7 (permalink) Old 10-01-2012, 11:39 AM
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If it is loose or failing that is a possibility. Check this video out, it's a different model but should have the same location.



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post #5 of 7 (permalink) Old 10-01-2012, 12:53 PM
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Quote:
Originally Posted by Raistlyinn View Post
Could it be the Oil Pressure Switch? Is that the sensor?
and what's the sending unit?
Yours is not like that video though. I would start by checking the connection on the sending unit (oil pressure switch= sensor = sending unit) sometimes they corrode from road grime because it is sitting in the front of the engine. Disconnect it, wire brush what you can, spray the rest with electrical contact cleaner and add dielectric grease if you have some. Try that if the problem persist then you change the oil pressure sending unit. Always do what cost less first.

This guy changed his recently and posted
https://www.yourcobalt.com/forums/ins...re-sensor.html

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Last edited by Coby7; 10-01-2012 at 12:57 PM.
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post #6 of 7 (permalink) Old 10-02-2012, 11:58 AM Thread Starter
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Thank you for your suggestions I really appreciate the help, i'll give it a shot and let you know hot it goes
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post #7 of 7 (permalink) Old 10-03-2012, 06:28 AM
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Good morning Raistlyinn,

I hope you're able to find the root of this concern you're having with your oil pressure light. Given your mileage you would be outside of your bumper to bumper warranty from Chevrolet; however there are other warranties that may still apply to your vehicle if not to this specific situation. If you have any questions about what warranties the vehicle still has on it, please let me know! I need the last 8 digits of your VIN to search for your vehicle.

Sarah, GM Customer Service
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