Question about 1990 Buick LeSabre

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How do I change the oil pressure switch properly?

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Remove oil from engine.unplug connector.clean connector.remove switch.put new swtich.connect the connector.put oil in engine.drive for 10km and check if oil light comes on.

Posted on Oct 04, 2009

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Posted on Jan 02, 2017

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Had my oil changed two days ago now its showing high oil pressure


You have to make sure the right oil & right amount of oil is in the motor. If so, there is an oil pump, oil pressure switch which controls the gauge & the gauge itself. 1st get the PSI ckd & the pressure switch. If it doesn't lead to a deeper internal engine problem. The pressure switch is the most common problem but it may be any of the above. Good luck

Mar 25, 2017 | Cars & Trucks

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Determining reason for check engine light in 06 chevy aveo


possible oil pressure switch, oil pump itself, or rod bearing issues due to poor oil change history. (that last one is more of a knock that a tick)
Sounds for sure like you aren't getting the proper oil pressure and the ticking would most likely be the cam/rockers/valves letting you know they need more oil on them.

Dec 25, 2016 | Chevrolet Aveo Cars & Trucks

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My oil light comes on after higher speeds while idling at a traffic light.


It may be your oil pressure transmitter switch at fault. There's many different oil pressure transmitter switches. Here are some generic images:
oil pressure transmitter switch Google Search
It could also be that your vehicle is due an oil/filter change.
Is your oil level ok?

It's unlikely to be your oil pump at fault.
  1. Check your oil level
  2. Is the vehicle due an oil/filter change?
The oil pressure transmitter switch simply tells the engine 'low oil pressure'. This usually happens at idling speed due to a faulty transmitter switch, low oil level or there's a need for an oil change as the old oil is no longer up to the job. Oil pressure switches are easily changed.

The important thing is that you aren't getting a warning light when driving at speed. If your oil level is okay and it isn't due an oil/filter change - it probably is the oil pressure switch at fault.

For your own peace of mind try adding an oil additive.


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Nov 03, 2015 | Cars & Trucks

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Oil light stays on occasionaly


If you know the switch is good and proper oil level. The engine probably has lo oil pressure. Could be a bad bearing.

Oct 14, 2012 | Cars & Trucks

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Should I be concerned about the oil pressure light flickering when I brake hard or idle?


Yes, the oil is the life line to the engine, without proper pressure or circulation the engine will die, no different than us humans. The reason why the light goes off is that the engine is running at higher RPM pushing more pressure to the sensor therefore it turn off the light. When the engine running at low RPM the oil pressure is low therefore it not enough pressure to turn off the switch. 1st. it cheap, replace the oil pressure switch and make sure the oil dip stick at proper level. If replacing oil pressure switch does not rectified the issue, the oil pump might be going bad and not pumping proper pressure. Replacing oil pump is a major job. remember, on any vehicle, if it run proper there should be no lights on and that is the reason why they put the lights there for a reason. Check and see you have a small oil leaks.

Nov 21, 2011 | Toyota Corolla Cars & Trucks

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2005-low oil pressurer explore


I'm assuming you have a low oil pressure indicator on the dash. Have you checked the oil level? If it is at correct level, it is possible the oil pressure sender/switch isn't reading the pressure properly. Also it is possible that bearings in the engine are worn out, or that the oil pump isn't working properly. If you don't have a pressure gauge to screw into the engine where the switch is, I would start by replacing the oil pressure switch.

Mar 26, 2011 | 2005 Ford Explorer

1 Answer

Why does the oil light stats on


It could be the oil pressure sensor (switch) is bad. It could be that the plug has come off or the wire is compromised and not completing the circuit. It may need oil as it may be low. The oil pressure may have dropped if there is excessive mileage on the oil and it hasn't been changed making it too thin to register properly. It may be a high mileage engine and the main engine bearings are worn. Start with a pressure check and an oil change. If the pressure is okay, then it may be the pressure switch or wire...cheapest to most expensive. Don't listen to any nonsense about the oil pump. If it was bad, you'd already be walking.

Jan 27, 2011 | 2002 Dodge Caravan

1 Answer

Oil can icon on the dashboard of chrysler 300 -what to do??


oil light indicates one of two things, Low oil pressure. or Low oil level. Check the level on the dipstick (consult owners manual), if it is low fill it to the "full" line with fresh oil of the correct grade. Also the oil on the disptick should look syrupy golden, not black and dirty - if the oil looks filthy then get it changed, old oil is thinner and results in lower pressure... if it is already at or near the FULL line then you have a more serious problem - low oil pressure is caused by a, faulty oil pump b, worn engine c, wrong grade of oil d, not enough oil e, contaminated oil Also a faulty oil pressure switch could bring the light on... so check this before you have the engine stripped!!!!!
An oil change will cost very little money and could solve the problem, if the light is still on with new oil then chave the oil pressure switch tested... if not the switch than it is a "real" engine problem and needs proper investigation.
IT IS NOT A GOOD IDEA TO DRIVE WITH THE OIL LIGHT ON Unless you know it is an electrical fault and not truly a low oil pressure condition bringing on the light.

CHECK OIL - fill if necesary - light hopefully goes off... STILL ON - have switch tested - switch is hopefully faulty - replace it... STILL ON - have engine checked out - it is losing pressure somewhere
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Jan 16, 2010 | 2005 Chrysler 300

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