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Location of oxygen sensor on 1979 buick regal with 3.8 liter engine

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: locate the oxygen sensor on a 4.2 liter

In the exhaust pipes just down stream from the exhaust manifolds.

Posted on Oct 20, 2008

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StormStrikes
  • 104 Answers

SOURCE: how to replace a crank sensor on a 93 buick regal 3.8L engine

Im assuming this is the Series I 3800? If so, if you can email me I can send you some directions on the process. Its for a Series II 3800 but it should be similar. If you cant email me, post up and I'll see what I can do.

Posted on Dec 30, 2008

  • 701 Answers

SOURCE: need location of crank angle sensor on 1997 pontiac sunfire 2.2 liter

Hello oldiro: My name is Roger and I can help. From under the vehicle look up between the transmission and the side of the block. Mid motor above the pan rail there is a bolted in sensor. This should be the crank sensor.It will have two wires plugged in to it. Please rate this answer as this lets us know you received the information you asked for. Should you need further help please just ask. Thank You for using FixYa. Roger

Posted on May 06, 2009

Molson02536
  • 3854 Answers

SOURCE: location of oxygen sensor

I believe you may have three (3) O2 sensor, (2) of the sensor is on ether side of the exhaust down pipe and some times called up stream O2 sensor, the third O2 sensor know to some as the down stream O2 and is after the Catalytic converter.
The up stream O2 monitors the left and right side banks and sends signals to the ECM to make the adjustments to the injectors to keep the proper air/fuel ratio. 
The down stream O2 monitors the catalytic converter and sends signal to the ECM if the catalytic converter has gone bad.
Good luck and hope this helps. If you get it scanned at Auto Zone, they should be able to let you know which O2 has gone bad so as to not change all three. You could always check the wire harness to the down stream O2 for corrosion. Keep me posted

Posted on May 29, 2009

  • 1608 Answers

SOURCE: location of oxygen sensors on 2002 dodge grand

The o2 sensors are located on the exhaust system.The upstream in on the rear exhaust manifold and the down stream is in front of the catalytic converter.Usually when they are bad they will make the check engine like go on.Make sure the air filter is clean,tires at correct inflation,alignment is to specs.If the vehicles pulls to one side or the other or steering wheel is not straight when driving down a straight stretch of road.Also tires are wearing normal.Use cruise control where ever on highway.If you let your vehicle warm up in winter.This also uses gas.Hope this helps.Good luck.

Posted on Dec 23, 2009

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1 Answer

What is the Wire Order with distributor?


theres no distributor and the firing order for your 3.8 is 1-6-5-4-3-2-the following link shows the coil pack
Buick General Motor 3800 V6 Engine Firing Order DIS IDI ignition timing 3.8 Buick Engine Coil Pack Firing Order Spark Plug Wire Location Which way do the spark plug wires go on & what cylinder is what?
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For the Buick V6 231 3.8 liter turbocharged engine:
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Answers!
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Firing order:
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Aug 15, 2015 | 1987 Buick Regal

1 Answer

2003 buick regal,3800. code 135 coming up. car runs til reaches operating temp,then will not idle. Is this O2 sensor failure?


P0139 - Oxygen Sensor Circuit Slow Response (Bank1, Sensor2)
- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
Best advice check it out first!
DO NOT Shotgun it as in replace things until it works. You are blowing money at that point.

Dec 23, 2014 | 2003 Buick Regal

2 Answers

1995 buick regal firing order


1995 Buick Regal 3.8 liter V-6 VIN "L"

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1995 Buick Regal 3.1 liter V-6 VIN "M"

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Hope this helps (remember to rate this answer).

Nov 23, 2010 | 1995 Buick Regal

1 Answer

2001 buick regal w/ bad ignition coil and clogged catylitic conv.


Hello! The defective ignition coil more than likely contaminated the downstream O2 sensor...If there isn't a trouble code and engine performs in a normal fashion, there's no reason to change the upstream sensor...

Guru........Saailer

Aug 03, 2010 | 2001 Buick Regal

1 Answer

1997 biuck regal firing order?


1-6-5-4-3-2 is for the 3.8 liter engine
1-2-3-4-5-6 is for 3.1 liter engine

Apr 21, 2010 | 1997 Buick.5 Regal

2 Answers

Buick regal 92 3.8L Horrible fuel mileage


Sounds like you might have an oxygen sensor problem. Your catalytic converter(s) maybe defective or dirty. That in turn can dirty up the oxygen sensor. A defective oxygen sensor will send faulty info to the computer, interpreting the fumes as cold (even when the engine warms up). That causes the computer to adjust the fuel mixture to very rich, giving you poor gas mileage and the fuel smell. Hope it helps.

Mar 16, 2010 | 1992 Buick Regal

1 Answer

I need to change the sparkplugs can I get the digram of the cables buick regal 1998


You didn't mention the engine size, so I included both diagrams...

1998 Buick Regal
3.8 liter SC V-6


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1998 Buick Regal
3.1 liter V-6


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Jan 24, 2010 | 1998 Buick Regal

2 Answers

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.

May 19, 2009 | 2003 Buick Regal

1 Answer

1991 buick regal , 3.8lt,


1991 3.8 liter engines used a Mass Air Flow sensor in the intake tract (measures incoming air) instead of a MAP sensor. The MAF sensor is located on the engine just behind where intake hose is attached.

Jul 04, 2008 | 1991 Buick Regal

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