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Buick Regal Check Engine Light

15 messages,  Last post on Nov 21, 2009 at 10:41 PM

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What is this discussion about? Buick Regal, Engine, Sedan


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#11 of 15
Buick Regal Mass Airflow Problem by diy_dad
Aug 28, 2008 (12:23 pm)
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I found this site on cabelas forum, http://repairpal.com Punched in 2002 buick regal mass airflow replacement and it said, About this Repair: Mass Airflow Sensor Replacement for your 2002 Buick Regal
What to watch out for
 
      Mass Airflow Sensors are often replaced when the only problem is a bad connector or the sensor wiring harness. The shop should check these items before replacing the sensor.
    *
      "High-performance" wet foam air filters are not recommended because they will damage the mass airflow sensor and actually cause poor performance.
 
Recommendations
 
    *
      The air filter should be replaced along with the Mass Airflow Sensor. Dirt and debris should be cleaned out of the system to prevent any damage to the new sensor.
 
Why this happens
 
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      A failing mass airflow sensor can cause the "Check Engine Light" to come on and due to high nitrous oxide, the vehicle may fail an emissions test.
    *
 
      If the Mass Airflow Sensor is not functioning correctly, the vehicle may lack power when accelerating or going up hills
#12 of 15
Re: Buick Regal Mass Airflow Problem [diy_dad] by jipster
Aug 29, 2008 (5:02 am)
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Replying to: diy_dad (Aug 28, 2008 12:23 pm)

Mass Airflow Sensors are often replaced when the only problem is a bad connector or the sensor wiring harness. The shop should check these items before replacing the sensor.
 
I had my MAS replaced a few years ago to the tune of $300. I'm sure the dealership checked for bad connections and only replaced it if necessary... not!
#13 of 15
04 regal service engine soon light by micheman
Dec 14, 2008 (5:18 am)
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04 regal service engine light stays on. car runs great, gets good gas milage. 5 codes say (paraphrasing) rich mixture bank 1 (2times) transmision shift solinoid (2times) and turbo malfunction (1time).
Car has 59000mi. Is there a check to narrow down which components are bad. Car does not have a turbo and never has.
#14 of 15
Re: 2002 Buick Regal Service Engine Light [fondo] by buickregal12
Nov 21, 2009 (10:19 pm)
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Replying to: fondo (Jul 22, 2007 3:24 pm)

i read on this site to check out if the CAT converter is plugged. apparently there is two lines running to it and they crack over time? check it out. also known for helping transmission.
#15 of 15
HELP by buickregal12
Nov 21, 2009 (10:41 pm)
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my 98 buick regal has alot of problems need help!!!!!! my abs brake sensor light is on and brake light will go on and off. low coolant will stay on. assuming thats the thermostat. check engine light. ??? need a supercharger rebuilding kit. coupler in there is goin out. tranny is the most of my issues tho. i seem to have every problem people are talkin about. it shifts hard at about 40-50 and so on. also it willl shut off on me in the blue? wtf

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