Why my buick lesabre idles so high?

Asked by Apr 17, 2014 at 01:38 AM about the 1989 Buick LeSabre Custom Sedan

Question type: Maintenance & Repair

My 89 Buick Lesabre idles too high,it started when this guy put a TPS sensor on and didnt adjust it & now I cant find the guy nowhere,also,since that was done it wont shift into overdrive whemI am on the freeway.All this started happening when the TPS sensor was put on without adjusting it,The car runs alirght but always at a high idle,need for someone who has had this issue to help me get this car running right,I have been told alot of things lately but please someone tell me what the problem is if you have went thru something like this.Hope to hear from SOMEONE SOON.l

4 Answers

21,495

loosen the two screws that hold the tps and turn it while idling ,you don't have to remove it just a 1/8 turn

3 of 3 people found this helpful.

Did that and still nothing.

7,835

is the vaccuum hose still on the vaccuum modulator and routed to the throttle body?? might replace that hose just to be sure.

2 of 2 people found this helpful.

where is the vaccuum modulator located?

2 of 2 people found this helpful.

Your Answer

LeSabre

Looking for a Used LeSabre in your area?

CarGurus has 1,771 nationwide LeSabre listings starting at $1,000.

ZIP:

Buick LeSabre Experts

  • #1
    Tom Demyan
    Reputation
    2,270
  • #2
    John Saffrahn
    Reputation
    2,030
  • #3
    Austin Gaboda
    Reputation
    1,440
View All

Related Models For Sale

Used Buick Regal
173 Great Deals out of 8,825 listings starting at $4,800
Used Buick Century
779 listings starting at $1,600
Used Lincoln Town Car
45 Great Deals out of 1,758 listings starting at $1,000
Used Honda Accord
1,013 Great Deals out of 60,156 listings starting at $1,099
Used Toyota Camry
941 Great Deals out of 82,535 listings starting at $999
Used Mercury Grand Marquis
38 Great Deals out of 1,740 listings starting at $1,800
Used Cadillac DeVille
1,548 listings starting at $2,995

Used Cars For Sale

2005 Buick LeSabre For Sale
15 Great Deals out of 295 listings starting at $1,000
2004 Buick LeSabre For Sale
3 Great Deals out of 311 listings starting at $1,300

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.