Question about 1999 Audi A4

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Low oil pressue light at low rpm

We replaced a cracked oil pan on our audi and now the low oil light
comes on at low rpm and goes off at higher rpm's. Is it a sensor or
bad oil pump or what??

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  • 87 Answers

Wrong oil need 10w 40 weight caster oil is best. See right now you have thin oil and in hot weather and hot motor temp . It just gets thiner . now with 10w 40 you will bring it up a bit thus lowering the oil presser and bringing it to a happy medium .

Posted on Jul 12, 2008

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1 Answer

I have a engine noise sounds like lifters but goes away and then comes back


What is your oil pressure gauge doing? Low oil pressue will cause lifter sound. Check your oil. A small exhaust leak will sound like lifters also, but generally will go away after the exh manifolds heat up, if they have a small crack.

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When i stop at a robot my oil light starts to come on,i checked the iol and its fine on the dip stick.


Sounds like you are losing oil pressure when low rpm's. Try putting high mileage oil and filter and see if it continues, If it does you may have a screen in the oil pan that is clogged where it goes into the pump causing low oil pressure when under idle conditions.

Feb 01, 2016 | Cars & Trucks

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Why do I still have low pressure light on?


The oil pressure may actually be low. Remove the sensor and connect an oil pressure testing unit in its place. Take the readings at idle and usually also at 2000 rpm. Not sure about the 2000 but the service manual will give you the test specs. Compare your readings to the min/max given in the manual.

Aug 25, 2014 | 2010 Audi A4

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Igot a problem audi 1.8t showing a oil light wen engin is runing after 10 km starting noise in camfolows we put new oil pump still do the same thing


Main bearings on the crankshaft are bad. The reason for the noise is that when the oil gets hot it thins out, thus causing low oil pressue thru the crank bearings. This in turn doesn't push enough oil the the cam lifters. causing them to chatter.

Feb 03, 2011 | 2001 Audi A4

1 Answer

My oil light turned on in the cluster and i thought it was a sensor so I changed the oil pan sensor and left the shop,it stoped until the car warmed up and the sensor turned back on again during up or down...


Hello. Hopefully I can help clarify things for you. The sensor just senses the amount of pressure you have and lets you know if it's low. The oil pump pumps oil from the pan to higher parts of the engine via the valley (just under the intake manifold for the lifters etc...) Oil PRESSURE is created by the main engine bearings on the crankshaft. When the mechanic revved the engine the higher rpm caused the engine to turn faster making it able for the main bearings to create enough pressure to turn it off. The easiest way to explain how they create pressure is probably like saying something like...Think of being in a swimming pool. If you put your fingers together, cup your hand, and try to splash someone slowly...what happens? Now do the exact same thing quickly and you splash them. Higher pressure from the same hand that did nothing. You may be able to find a good used engine on Car-part.com. It's a salvage yard resource from vehicles that have been junked. Quite often the primary damage to them is from an accident. I hope I've helped. If so, please rate my answer, and leave a comment. I wish you good luck.

Dec 03, 2010 | 2000 Audi A4

1 Answer

When the engine revs up to 4000 the oil light comes on and beeper sounds. this is an audi V6 coupe 1996 make


THAT MEANS ENGINE IS NOT GETTING (FLOW) SUFFICIENT/ REQUIRED OIL AT THE HIGHER RPM. WHEN REQUIRED LUBRICATION NOT TAKES PLACE THE METAL PARTS CREATE MORE HEAT DUE TO FRICTION. THIS WILL LEADS TO OVER HEATING OF ENGINE AND ENGINE GET SEZED.
HENCE PL DONT RUN THE ENGINE AT HIGHER RPM AND DO THE REPAIR IMMEDIATLY.

SOLUTION:.

THE CASES MAY BE,
1.LOW LEVEL OF ENGINE OIL AT ENGINE. PL CHECK THE OIL LEVEL BY CHECKING THE OIL DIP.
IF SO POUR SOME OIL AND CHECK.
2. IMPROPER QUALITY OF THE OIL, WHICH NOT WITH STANDING AT HIGHER RPM.
3. LOWER VISCOSITY (THICHNESS) OF THE OIL MIGHT HAVE USED, INSTEAD OF RECOMMENDED ONE. IF SO OIL IS THE PROBLEM REPLACE RECOMENDED OIL IMMEDIATLY.
4.LOOK IN TO THE OIL PUMP PRESURE ETC., OR CHOKE IN ENGINE OIL FEEDER LINES.

iF NOTHING ABOVE ONE PROBLEM OF ENGINE SHOULD BE MONITOR BY COMPUTER WITH SERVICE STATION.

TAKECARE,
RGDS, JANA

Nov 19, 2010 | Audi 80 Cars & Trucks

2 Answers

Replacing oil pan: what is the best way to access it to remove it?


The only access way for oil pan replacing is from the bottom side of the engine (car). This operation needs to remove the bottom engine plastic cover.

Feb 27, 2010 | 2000 Audi A4

1 Answer

Oil pressure low suddenly


there is a big chance that your sensor is nedd to be replaced

May 31, 2009 | 2000 Cadillac Catera

5 Answers

Oil light comes on


Hi, this is an oil pump issue. i recommend replacing this device and the oil screen as well.

The oil pump is a device that distributes the oil throughout the engine. at high rpm's the demand on this device increases dramatically and, if it is malfunctioning in any way, this high demand can not be met and the needed lubrication will be shorted, therefore, tripping the oil light. Most damaged oil pumps can produce enough pressure during low idles but, when the rpm's are increased, the malfunctioning pump will fail to meet expectations. this will cause low pressure and inadequate oil flow. this can also damage the block in time if not corrected.

I would do a quick oil level check to make sure of proper oil level. if the oil level is proper, you will need to replace the oil pump asap. if the oil level is low(1-2qts low), just add to full mark and, run a test drive. if the light illuminates once more, this will confirm oil pump failure and it will need to be replaced.

Remember to replace the oil screen as well.

Please rate and god bless:)

Apr 28, 2009 | 1995 Audi 90

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