Question about 1999 Buick Park Avenue

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The 'service engine soon' light comes on repeatedly

Several times the 'service engine soon' light comes on. It came on in Oct 2008 and there was no problem. It came on again in April 2009. The engine is serviced on time and should be in excellent condition. Gas cap is tight and seems to be OK.

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I'm thinking the oxygen sensor is not working properly. Autozone or Advance Auto will do a check at not charge.

Posted on May 18, 2009

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How do you reset the service engine soon light


Put the key into the ignition and turn it to "Run." Don't start the engine. Press down slowly and fully on the gas pedal, then release it. Do this three times in five seconds. Watch for the "Service Engine Soon" light to start blinking. This indicates that the system is resetting itself. Turn the ignition to "Off" and wait one minute. Start the Century's engine. The Service Engine Soon light will flash for a moment, then turn off. If it doesn't do this, repeat the process.if all else fails...Disconnect your battery for one minute and then reconnect it again that should reset it, if the problem that you have in your car is still there then that light will come on again after whille then you gona need to run diagnostics on your car to find the problem if it will not come on again then that should take care of it.9-08-2006Let me tell you about my experience with my 1995 Buick Century.When my buick sits for a while while running, the radiator fan comes on, you know?Well, after the fan does its thing, SOMETIMES the "SERVICE ENGINE SOON" light comes on.THEN.....when this happens again, it may take a couple times of after the fan comes on, then....the light goes off !!!Its like it needs to go thru some sort of "CYCLE" , THEN THE LIGHT GOES OFF...Who knows though,you may have LEGITIMATE problems with your car.good luck.

Aug 17, 2014 | 2003 Buick Century

1 Answer

The engine light comes on, mechanic states that the car reads that it is running rich why


You need a better code reader, ie "Mechanic". The ECM should control "Running rich or lean". Is engine light? Quote, Service SOON or Service NOW. SOON is usually minor, but needs to be found in the codes. "NOW" need to be checked immediately.

Nov 09, 2013 | 2008 Chevrolet Impala LTZ

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2001 Bonneville! Several weeks ago, had trouble turning the key in the ignition - sometimes would turn, sometimes wouldn't. Then the Service Engine Soon light came on and the car stalled out a few times...


Service Engine Soon came back on and the car is again stalling ????? Did you have it checked for DTC'S - diagnostic trouble code's ? Service engine soon light on , codes will be present !

Apr 20, 2017 | 2001 Pontiac Bonneville

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I have a 2008 Beetle with a 2.5 litre engine. The engine service soon light has been coming on for the past 4 to5 months. We have replaced the spark plugs, number 5 cyl coil, changed the battery, serviced...


In most cases the check engine light indicates a sensor is bad. Have a mechanic scann it and if so replace it.....hope this info helps and if so Please leave rating on this post and good luck..

Aug 15, 2012 | 2008 Volkswagen New Beetle

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How do i reset the service the service vehicle soon light? I have changed the oil


Turn the ignition to ON, with the engine off. Fully depress and release the accelerator pedal slowly three times within five seconds. The reset is complete when you hear the chimes and the “CHANGE OIL” light goes out. If the light stays on and no chime is heard, you will need to repeat the reset procedure. Turn the key to OFF. If the “CHANGE ENGINE OIL” message comes back on when you start your vehicle, the engine oil life system has not reset. Repeat the procedure.

Mar 30, 2010 | 1998 Oldsmobile Intrigue

2 Answers

Service Soon light is on.. what does that mean?


In most cases the light will go out by itself once the problem is resolved that made the light illuminate. You can RESET the light by removing and re-installing the fuse(s) marked as ECM in the fuse panel or by disconnecting the battery for several seconds.

If the light continues to illuminate, You will need to extract the computer codes from the computer via the factory specifications to see what code(s) are being stored in the computer.

NOTE: Disconnecting the battery will cause the engine to run a little erratic until you drive it for several miles so the computer can re-learn it's proper settings.

How to Reset Service Light
Chevrolet Suburban 2000-01
GMC Yukon XL, Chevrolet Silverado,GMC Trucks Sierra 1999-00
Turn the ignition key to the RUN position. Fully push and release the accelerator pedal 3 times within 5 seconds. If the CHANGE OIL SOON light flashes 2 times, the system is reset. However, if the light comes on and stays on for 5 seconds, the system did not reset. Repeat the procedure if the system does not reset.

Let us know (remember rated this help). Good luck.

Jan 14, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

Service engine light keeps coming on


need to scan for codes and find problem code some part stores do for free

Jul 06, 2009 | 2004 GMC Envoy

2 Answers

Resetting service engine soon light in my 2002 cadillac escalade


  1. Turn the ignition key to the RUN position.
  2. Press the INFO button on the Driver Information Center (DIC) button to display ENGINE OIL LIFE.
  3. Fully push and release the accelerator pedal 3 times within 5 seconds. If the CHANGE OIL SOON light flashes 2 times, the system is reset. However if the light comes on and stays on for 5 seconds, the system did not reset. Repeat the he procedure if the system does not reset.
  4. Turn the ignition OFF.

Feb 01, 2009 | 2002 Cadillac Escalade

1 Answer

Landcruiser GXL 2002 Turbo Diesel - Fuel ? problem


I can only relate this problem to those similar to Ford F150's,,,on the fords it would be bad grounds from the battery to the frame,and engine,,and from the engine to the Firewall.
This would play havoc with the ECM especially when it was damp.
So i can only suggest the obvious to me at least.
Good luck to you.

Jan 19, 2009 | 2002 Toyota Land Cruiser

2 Answers

Service vehicle soon light


Unplug the battery... i have to do this several times... as every time the gas cap does not get on correctly it comes on...

Oct 30, 2008 | 2001 Pontiac Aztek

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