Question about 2000 Cadillac Catera

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Oil light comes on. Oil pressure guage shows good pressure.engine oil level is g00d.

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You could have a faulty engine oil level sensor.

Posted on Jul 30, 2009

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Posted on Jan 02, 2017

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Can the tensioner make the chain to be loose inside the engine an cause it to make noise an show sign of oil on the dashboard?


A loose timing chain tensioner will not cause the oil lamp to light. The noise you are hearing is most likely valve noise due to oil starvation. The oil light comes on when the oil pressure is too low to be safe for the engine. Most people believe it is to tell you the oil level is low. A low oil level can cause low oil pressure is the oil is below the sump, but low oil is not the cause of the light - low oil pressure is. This can be due to a number of things, such as a bad oil pump, faulty bypass regulator at the oil filter, loose sump pipe connection, or even an oil gallery plug that comes out internal to the engine. You need to stop using the vehicle immediately and have the oil pressure checked with a mechanical guage to determine if the problem is the oil ressure or the sensor that lights the light. The chain tensioner being loose CAN cause noise, and that itself is an issue that should be fixed, as in many vehicles a loose chain can jump time, or jam and break, and since many cars have interference engines, either of these scenarios can cause severe internal damage to the engine.

May 06, 2016 | 2007 Nissan Tiida 1.6

1 Answer

Replaced oil sensor light still comes on


MAY---May-be you really have low oil pressure.. The way this sensor works is when you turn off the engine it closes to ground.. and when you start the engine.. the oil pressure opens it and the light goes out.. SO.. if the wire going to it is grounded out somewhere between the sensor and the dash board the light will stay on.. 3 choices.. 1. bad sensor (even though you replaced it) 2. wire is shorted to ground.. remove wire from sensor while engine is running.. light should go out. 3. you actually have really low oil presure. next.. after you have exuasted #1-2. you can remove sensor and install a real oil pressure guage and see what the pressure really is.. If you have very low or no oil pressure..1. Check oil level.(probably should have done this first) 2.pull oil pan and replace oil pump.. while you are there check a main bearing and a rod bearing for wear.. worn out bearings will cause low oil pressure. If you have good oil pressure install the pressure guage permanetly and forget about light.

May 25, 2014 | Buick LeSabre Cars & Trucks

1 Answer

How can I fix my car with the oil light coming on. The engine does intermittent jerking during driving


Oil light usually indicates LOW oil pressure.. Which will kill your engi ne and cause very expense repairs. FIRST Check oil level, If the level is good. You need to find out if the engine really has low oil pressure. A new oil pressure switch is about $8.00 you might start there. If the light still comes on its a good posibilty your car has bad oil pres.. To find out for sure you will need to install a Pressure guage and check the actual pressure.. If the Oil Level is good and you still have low oil pressure The engine has internal wear or damage.. You should not drive it till you fix the low pressure problem. rebuild or replace engine. The intermittant "jerking" can be unrelated to the oil pres problem or you engine is going away because of the pressure problem.

May 14, 2014 | 2001 Nissan Altima

5 Answers

Whats the purpose of an oil pressure switch can it determine weather oil leaks from your grand prix or not?


The oil pressure switch or sending unit is a unit that receives an electrical signal showing what your cars oil pressure is.And yes it does partially does let you know when there is a problem somewhere in the oil system.For example if your filter gets clogged up your oil pressure will go down and then go up when you accelerate.If there was a leak in the system first you would probably see the leak And if the oil pump or oil pump shaft were to break you would have no oil pressure.So you can see the importance of having an oil pressure switch.I feel there are 2 guages that are important to watch are your oil guage and water temp guage they can tell you allot about how your car is operating.

Feb 09, 2011 | 1997 Pontiac Grand Prix

1 Answer

Oil light comes on at first starting shut off engine and re start and light i s off


I don't think there is anything to worry about, unless the light stays on. Think of the light as an oil pressure guage. When you first start the engine the oil pressure is very low, so the light Will be on. When the oil pressure reaches normal operating level, or a safe oil pressure, then the light will go off.

Dec 19, 2010 | 2002 Jeep Liberty

1 Answer

Oil guage drops to near 0 and the check guages light comes on when I am at idle or on a slope at idle. Is this a concern, or dont worry about it


It means that your engine is loosing oil pressure, it is a concern to be worried about. Check your engine oil level, the engine might need oil.

May 02, 2010 | 2001 Jeep Grand Cherokee

1 Answer

OIL PRESSURE LIGHT INTERMINTENLY GOES OFF AND ON


Keep checking those Fluids. it sounds a lot like your Oil pump is taking a Slow Death March. At some point you will need to replace it.

Jan 12, 2009 | 1998 Dodge Caravan

1 Answer

Flashig oil light


You either have a loose/worn engine bearing or a worn out oil pump, do not drive the car this way, you will cause serious damage to the whole engine. A oil switch is for a light, it turns on the light when oil pressure falls below about 10 PSI, a sending unit is for a guage that shows oil pressure with a scale, it may have numbers on the guage or just green and red, or high and low.

Oct 10, 2008 | 1992 Buick Roadmaster

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