04 le sabre 200k miles always mileage is 19 mpg. city or highway driving????what is wrong?no codes.

Asked by Aug 16, 2016 at 09:00 PM about the 2004 Buick LeSabre

Question type: General

1 Answer

670

Your car has the 3800 V6 a very good engine but with age some of the controls can fail. (1) Cam sensor...there is a magnet in the end of the cam, held in place with a plastic part...the magnet falls out and the cam sensor does not work....gas mileage and performance suffer (2) if the knock sensor fails, this can change the timing and gas mileage and performance suffer. (3) a plugged catilitic converter can affect mileage and performance.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,870
#2 John Saffrahn
John Saffrahn
Reputation 1,540
#3 POPEYE99
POPEYE99
Reputation 1,350
View All

Related Models For Sale

Used Buick Park Avenue
500 listings starting at $3,975
Used Buick LaCrosse
415 Great Deals out of 20,793 listings starting at $1,495
Used Buick Century
1,062 listings
Used Chevrolet Impala
964 Great Deals out of 36,457 listings starting at $1,800
Used Buick Regal
215 Great Deals out of 11,105 listings starting at $2,195
Used Cadillac DeVille
1,965 listings starting at $1,600
Used Toyota Camry
1,489 Great Deals out of 100,431 listings starting at $700
Used Ford Taurus
358 Great Deals out of 22,407 listings starting at $1,499
Used Honda Accord
1,221 Great Deals out of 77,867 listings starting at $969
Used Mercury Grand Marquis
33 Great Deals out of 2,248 listings starting at $1,500
Used Pontiac Bonneville
3 Great Deals out of 669 listings starting at $2,298
Used Lincoln Town Car
44 Great Deals out of 2,131 listings starting at $1,999

Used Cars For Sale

2005 Buick LeSabre For Sale
11 Great Deals out of 356 listings starting at $1,768