Question about 1995 Audi A6

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Oil pressure lamp

I own an Audi A6 2.6 V

Up untill now yhe engine has been great.

The Oil pressure light is flashing. I have checked the oil dip stick and it is not conclusive.

Please can you tell me what is the problem.

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Check and clean the connection on oil switch plug also try running an engine oil flush and changing the oil if that doesnt fix it then try removing the sump off the engine and cleaning the oil pick up

Posted on Jun 03, 2008

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Where is the oil sending unit on a 1996 mercury cougar xr7 ? Its cause my oil pressure gauge is bouncing up and down...i dont know why...can anybody please help me thank you so much


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The low oil pressure warning lamp will illuminate anytime the ignition switch is turned to the ON position without the engine running. When the engine is running, the light also illuminates if the engine oil pressure drops below a safe oil pressure level. To test the system, perform the following:
If the oil pressure light does not work, perform the following:
  1. Turn the ignition switch to the ON position.
  2. If the lamp does not light, check for a broken or disconnected wire around the engine and oil pressure sending unit switch.
  3. If the wire at the connector checks out OK, pull the connector loose from the switch and, with a jumper wire, ground the connector to the engine.
  4. With the ignition switch turned to the ON position, check the warning lamp. If the lamp lights, make sure the oil pressure switch is properly grounded in the cylinder block, and if so replace the oil pressure switch. If the lamp still fails to light, check for a burned out lamp or disconnected socket in the instrument cluster.
To diagnose an oil pressure light that stays on, perform the following:
  1. Check the engine oil level and top off as necessary. If the engine was 2 or more quarts low on oil, test start the engine after topping off the oil level and recheck the oil pressure light operation. If the light stays on, stop the engine immediately and go to the next step.
  2. Disconnect the wire at the sending unit, then turn the ignition switch to theON position. If the light remains on, check the wire from the sending unit to the gauge for being shorted to ground and repair as necessary. If the light goes out, turn the ignition switch OFF and go to the next step.
  3. Replace the oil pressure sending switch with a known good switch.
  4. Start the engine and check the oil pressure light operation. If the light stays on with the engine running, stop the engine immediately to avoid severe engine damage until the cause of the problem can be determined.

WARNING
If the oil pressure light remains on while the engine is started, stop the engine immediately. Do not operate the engine until the cause of the problem can be determined. Operating an engine with low oil pressure will cause severe internal damage.

Possible causes for an oil pressure light to stay on are:


Pinched or grounded sensor wireDefective oil pressure sending unitRestricted or severely leaking oil filterExcessive internal engine bearing clearance.Insufficient or severely contaminated engine oilBlocked oil pump pickup screen or severely worn oil pump

Mar 31, 2016 | Mercury Cars & Trucks

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Oil light flashing


oil light means loss of oil pressure.. not good ..check oil level fill to full if low..low oil pressure will cause fuel pump to be shut off..

Dec 08, 2013 | 2001 Ford Escape

4 Answers

Oil light is on after oil change and replacing the oil pressure switch


either oil pressure switch is defective, not connected or there was not enought oil put back into the motor.

Nov 30, 2010 | 2000 Honda Accord

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Oil light flickers when in idle. Oil on dip stick measures fine.


install a mechanical guage to test the actual pressure, if its fine the sending unit is faulty, if nor remove the oil pan and check the oil pickup for blockage,

May 24, 2010 | 1999 Chrysler Concorde

1 Answer

2000 audi a4 2.8 quattro/ oil lamp light on center of dash


have the oil pressure checked as soon as you can... also have them check the wiring for the oil sending unit

Robert

Please rate this solution thanks

Jan 26, 2009 | 2000 Audi A4

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A4 1.8T-Quattro 1999


might be a faulty oil pressure switch

Jan 12, 2009 | 2000 Audi A4

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Audi 80 oil pressure light


i think from memory that the oil pressure switch is at the back of the cylinder head, if its not there it will be located just above the oil filter, these switches are very cheep to buy and can be bought from any good motor factors. You are right to suspect the switch, its the first thing to eliminate before bogging your self down with more complicated and expensive problems.

May 14, 2008 | 1989 Audi 80

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