Question about 2000 Buick LeSabre

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My 2000 Buick Lesabre is hesistaing to pick up as if something was in the exhaust. Its only when driving the car, it back fired once. Once I'm above 40pmh its fine. When I first take off, very sluggish.

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Changed spark plugs.

Posted on Oct 07, 2010

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might need new battery or your wires may not be on tight, check to see once.

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Where is the O2 sensor located


For 2000 Buick Lesabre 3.8L SFI OHV 6cyl the Oxygen Sensor is located: under hood, center, rear engine area, above exhaust pipe flange, mounted in exhaust manifold.

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Fig. HO2S1 location "2" on 3.8L


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Fig. HO2S2 location "4" on 3.8L




Hope this helps (remember to rate and comment this answer).

Jun 07, 2011 | 2000 Buick LeSabre

1 Answer

I have a 2000 buick Lesabre and was driving home from work, 30 miles later at a stop light the engine started losing power. Started like sputtering.... it cleared up and was fine another 6 miles and...


have the coils and control module tested, sounds like you lost a coil so it not firing on all cylinders, it puting gas into nexhaust thats the smell, have it checked asap so you dont damage converter, hope this helps.

Dec 20, 2009 | 2000 Buick LeSabre

1 Answer

I have a 2000 buick lesabre. The fix engine soon


It NEVER was the camshaft sensor! Unless, you've removed the engine lately, which I doubt.
RUN to Advance Auto Parts and buy a can of "SeaFoam" and add to your gas tank per instructions...drive at least 100 miles and the problem should go away...IF it doesn't you'll have to replace the O2 sensors in the exhaust system...Any good mechanic should be able to do this for much less $$ than the dealership DO NOT go to the dealer for repairs!
Good Luck

Jun 22, 2009 | Buick LeSabre Cars & Trucks

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2001 buick lesabre, transmission problem?


There is a pressure sol. in the transmission that is bad . This is a common problem that requires removal of the side transmission cover. The transmission does not need to be rebuilt! Talk to a gm dealer. I have sold over a hundred of these pressure sol. and the side cover gaskets to a real gm transmission mechanic that have fixed this problem. GM parts over 20 years.

Apr 06, 2009 | 2000 Buick LeSabre

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