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I have a 1994 Buick the "Check Engine Soon" light stays on although it has been recently serviced, any ideas?

3.8 ltr V6 LeSabre

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  • 373 Answers

The check engine light covers about 60 different sensors. It could be anything from a loose gas cap to a head gasket. The best way is to have the scan done. Some shops do this free, some charge an hours labor. Personally, I'd go to WalMart and buy one to have. $99. This will tell you everything you need to know. Good luck

Posted on Jan 19, 2013

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Posted on Jan 02, 2017

keithheavili
  • 410 Answers

SOURCE: 2003 Buick Regal Service Engine Soon light.

The error that I'm showing for error code P1133 is 
P1133 Heated Oxygen Sensor (HO2S) insufficient switching bank 1 sensor 1(Rear Bank).  I would suggest having both of your Oxygen Sensors replaced if you haven't already had that done.  Hope this helps.  Thanks for an honest rating and for using FixYa.

Posted on May 19, 2009

emissionwiz
  • 75005 Answers

SOURCE: service engine light is on in my 2004 Buick LaSabre

the service engine soon light means a fault has occurred in the engine or emission system's electronic controls, it has nothing to do with any service you did in most cases, there are over 150 problems that turn the light on, to find out what the problem may be go to any Kragen Auto or Autozone parts store and ask them to run a OBD 2 trouble code test, IT IS FREE. then post the code back here for us to look at, which is also FREE.

Posted on Apr 09, 2009

  • 3 Answers

SOURCE: How do I reset my Check Engine Light?

you could go to an auto parts store and they can reset it for you, or you could pull your battery cables off the battery and hold them together for about 10 sec. that will clear any codes.

Posted on May 29, 2009

  • 115 Answers

SOURCE: 2000 Buick Park Avenue Service engine soon light

need to take car somewhere to have the code read with a scanner,try parts stores first some will do it for free if not the dealers have them

Posted on Sep 15, 2009

wracefans24
  • 1985 Answers

SOURCE: 1994 GMC Jimmy engine runs rough when cold; smooths out when warm

you need to have the codes checked to know what direction to start repairs,Autozone does this for free

Posted on Jan 20, 2010

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2 Answers

The "Service Engine Soon" light


No, because you have to check for codes
whenever you get any OBD 1 or 2 Light on your dash

Then you have some idea of the area of the vehicles
malfunction

Those lights have been with us for 31 years,I guess you
missed out on alot over the years, not keeping up with
cars

Jul 09, 2011 | 1994 Buick LeSabre

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Is the yellow "service engine soon' light on my


Yes it is you need to take that to GM fast!

Dec 06, 2010 | 2000 Buick LeSabre

1 Answer

94 buick lesabre starts ,runs ,then when shut off will not start


If the service engine light is on, it could be a faulty sensor or anything electronical with the car. It may even be something non noticeable. The only way to check exact problem is to run error codes.

Aug 07, 2009 | 1994 Buick LeSabre

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CHANGE ENGINE OIL SOON message comes on but the oil is clean and full with no knocking sounds in engine?


if you have changed oil recently (the warning is for oil life) it needs to be reset just like service reminder.

Jul 07, 2009 | 1994 Buick LeSabre

1 Answer

Check engine light came on


meaning you need to change oil and filter in your car .. or if you have done it recently you need to read your manuel in the glove box and see how to reset this service engine soon light.. Jerry holler if you need more

Apr 29, 2009 | 2001 Buick LeSabre

1 Answer

1994 Buick Lesabre service engine soon light. Can't read code.


I found several shops in my area, Albany, NY that had the older code readers. It worked fine, and cost me $30.00. It showed a bad O2 sensor that I replaced myself. I suggest you go to a reliable shop. Auto Zone/Advance etc.. do not have the right code readers. Joe

Feb 01, 2009 | 1994 Buick LeSabre

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Service engine soon light stays on


Many people never think about or ask about their exhaust sytems causing problems..a bad catalytic convertor can cacuse exactly what you're talking about..

A very simple check to see if that's your rpoblem

Dec 19, 2008 | 2000 Buick LeSabre

2 Answers

Ask about...a problem with my buick lesabre 1994


Yes, the oil should not be up too high on the indicator. To see what the service engine soon is telling you go to a Checker Auto, O'Rielly Auto Parts, or any other auto parts store that offers free automotive scans and they will tell you why your light is on. If the person whom is performing the scan is nice you can ask them to clear your codes. Fix that oil problem ASAP!

Oct 30, 2008 | 1994 Buick LeSabre

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