I have a 2004 Buick LeSabre with 64,000 miles and it's in great shape but the only diagnostic code coming up, is an 02 sensor and yet, the car tends to jerk forward while in drive sometimes.

Asked by Oct 19, 2014 at 02:40 PM about the 2004 Buick LeSabre Limited Sedan FWD

Question type: Maintenance & Repair

I am wondering what it could be.  Firestone could not find anything wrong with it other than
the oxygen sensor needed cleaning out and the car is still jerking forward while in drive.  
Transmission shop seems to think it cannot be a transmission issue. I have had a
transmission flush by machine done.  Any ideas?

2 Answers

42,375

I'm pretty sure there's no "cleaning" of an O2 sensor. When the check engine code says it's bad, replace it. If you didn't actually get a new one, I would try that first and see if the problem persists.

I have a slightly older model and it wouldn't idle perfectly when warm and in drive (at a stop). It wasnt a trans issue in my case it was a issue with the ignition control module that caused the rpms to increase and decrease at idle. I thought it was atrams issue at first. Is yours similar? There are so many factors that need to be taken into consideration, to start is the problem like mine was (stopped in drive) or is yours at different speeds? I did my O2 sensor and that helped my gas milage mainly and it also smoothed acceleration. As reelin68 mentioned, there isn't a procedure for cleaning the O2 sensor that ive ever heard of but and the major O2 sensor manufacturers usually recommend replacing them (regardless of any malfunctions) around 60,000mi if i remember correctly. My suggestion is to start with replacement of the O2 sensors (my model year only has one sensor, yours probably has more) ALL of them, and do so with ACDelco or NTK brand, both are OEM types.

Your Answer

Buick LeSabre Experts

  • #1
    Tom Demyan
    Reputation
    2,310
  • #2
    John Saffrahn
    Reputation
    2,050
  • #3
    Austin Gaboda
    Reputation
    1,450
View All

Related Models For Sale

Used Buick LaCrosse
331 Great Deals out of 17,922 listings starting at $1,095
Used Chevrolet Impala
549 Great Deals out of 34,952 listings starting at $1,495
Used Buick Regal
182 Great Deals out of 8,053 listings starting at $5,499
Used Buick Century
736 listings starting at $1,700
Used Honda Accord
1,111 Great Deals out of 66,541 listings starting at $561
Used Toyota Camry
960 Great Deals out of 91,206 listings starting at $300
Used Chevrolet Tahoe
792 Great Deals out of 42,136 listings starting at $1,980
Used Chevrolet Malibu
1,074 Great Deals out of 63,435 listings starting at $880
Used Cadillac DeVille
1,512 listings starting at $1,999
Used Chrysler 300
338 Great Deals out of 18,765 listings starting at $900
Used Lincoln Town Car
29 Great Deals out of 1,725 listings starting at $1,004
Used Pontiac Bonneville
462 listings starting at $3,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.