Question about 1987 Buick LeSabre

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Where are the throttle position sensor and the mass air flow sensor located on a '87 buick lesabre limited ???? thank you.

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Find the air filter and work your way towards the top of the engine. There will be a large black rubber hose that goes to an aluminum colored square shaped block with four bolts, one on each corner of the square shaped block. there will be a cable going to the throttle. on the opposite side of the cable will be the throttle position sensor with a plug in harness with two or three wires. The mass air-flow meter should be just behind the T.P.S.

Posted on Apr 22, 2009


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2005 Buick LaSabre Limited, will accassionaly start shifting hard into 2nd and 3rd. When car is cut off it will stop doing this, until maybe the next day. What would cause this? I recently had a filter and...

2 areas I would check unplug mass air sensor see if runs better its flat sensor near air filter , and u might need throttle position sensor for the hard shift

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Throttle Body (big metal component). You might want to check the Mass Air Flow Sensor, which is located within the Throttle Body. The Throttle Body itself rarely goes bad...

Nov 09, 2013 | 1998 Buick LeSabre

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Sounds like this could be the mass air flow sensor.Have a local auto parts store diagnose the problem with their computer You could also have a bad throttle positioning sensor.

Oct 19, 2010 | 1993 Buick LeSabre

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Fault codes 24,34,32,44 on 87 Buick Le Sabre. How do I find out what they mean?

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Location of the mass air flow sensor and connector

In throttle body assembly. Small black box with a wire going to it and a round "knob" looking thing coming out one side.

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Where is mass air flow senser on a 1989 buick regal


Thanks for using FixYa. The BUICK Regal Mass Air Flow sensor is usually installed in the intake air duct between the air filter and the throttle body mounted on the intake manifold. Also check the throttle body for mass air flow sensors location.
On mass air flow sensors with a sense wire, this wire can become contaminated with dust particles. These particles can be removed with automotive solvents that are safe for the use on mass air flow sensors. Before replacing the mass air flow sensor check for air leaks in the connecting air ducts and intake manifold. These leaks can cause similar symptoms as a malfunctioning mass air flow sensor.

Bad or contaminated BUICK Regal Mass Air Flow sensor can possibly cause a wide range of various vehicle drivability problems such as stalling, especially when the engine is cold, misfiring, poor acceleration, etc. In addition, a problem with the Mass Air Flow sensor often causes the "check engine" or "service engine soon" light in the vehicle instrument panel to illuminate.

Please do accept the solution if the issue is resolved or else revert for further assistance.


Nov 09, 2009 | 1989 Buick Regal

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My car was diagnoised with a bad air flow sensor

the mass air flow sensor is located under the top plastic engine cover. to remove this un screw the oil filler tube by hand and remove the top cover. its just to the right of center engine. unplug this sensor. next it has two screws to take this off. It is not standard screws so look at it. remove them and replace sensor. After install go to autozone and have the warning code removed. This is done free. 2000 buick lesabre

Sep 18, 2009 | 2000 Buick LeSabre

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Trouble code p0102 mass air flow sensor, could there be another cause for this code other than the sensor itself

It could be a dirty air filter a, spark plug, spark plug wires.
a leak in the air intake system or the mass air flow sensor

Aug 30, 2009 | 2000 Buick LeSabre

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