Sputtering car what could it be?

Asked by Dec 09, 2015 at 03:28 PM about the 2003 Buick LeSabre Custom

Question type: Maintenance & Repair

Car was running fine going down the road all of a sudden it started sputtering
real bad so far I have replaced plugs,wires,o2 sensor, crankshaft sensor, fuel
filter , coils and module, still sputtering bad will start when cold but after that
car is hard or don't start please any help would be great , Thanks

5 Answers

69,755

I suspect a fuel delivery problem. Run a couple of tanks of gas with a good fuel system cleaner like Seafoam or Chevron Techron concentrate.

1 of 1 people found this helpful.
96,935

As it starts and runs cold but starts to fail when warm it could be a sensor sending the wrong signal at operational temps, I would suggest have a "live data" scan performed, that should tell you what sensor is out of specs. There may not even be a check engine light cause the ECM sees a signal that is within the proper range for operation, but incorrect for operational temps. I had an Impala in my shop that was doing something similar, it wound up being the ECT sensor, as it warmed up it would show that the engine was getting colder, really fouled up the way it would run warm. HTH

1 of 1 people found this helpful.

Thanks guys for responses will get scan and will let you know Thank You very much .

25,165

Make sure you don't have any vacuum leaks around the PCV valve too. If it looks plugged replace the PCV valve.

1 of 1 people found this helpful.

Hi guys car still sputtering does it when it's cold or hot like I said changed wires plugs crank sensor, cam sensor, vss, coils, module, could it be fuel pump?

Your Answer

Add photo

Related Questions

LeSabre

Looking for a Used LeSabre in your area?

CarGurus has 1,949 nationwide LeSabre listings starting at $1,588.

ZIP:

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,180
#2 John Saffrahn
John Saffrahn
Reputation 1,820
#3 Austin Gaboda
Austin Gaboda
Reputation 1,420
View All

Related Models For Sale

Used Buick Park Avenue
398 listings starting at $1,500
Used Chevrolet Impala
600 Great Deals out of 35,645 listings starting at $899
Used Buick Regal
162 Great Deals out of 10,573 listings starting at $4,000
Used Buick Century
860 listings starting at $2,300
Used Mercury Grand Marquis
30 Great Deals out of 1,784 listings starting at $2,250
Used Honda Accord
1,050 Great Deals out of 68,302 listings starting at $1,000
Used Cadillac DeVille
1,722 listings starting at $1,995
Used Toyota Camry
1,246 Great Deals out of 84,501 listings starting at $750
Used Chevrolet Malibu
1,171 Great Deals out of 79,727 listings starting at $2,500
Used Ford Taurus
259 Great Deals out of 18,975 listings starting at $1,499
Used Ford Crown Victoria
10 Great Deals out of 1,266 listings starting at $1,995
Used Lincoln Town Car
35 Great Deals out of 1,795 listings starting at $1,495

Used Cars For Sale

2005 Buick LeSabre Custom For Sale
10 Great Deals out of 262 listings starting at $1,795

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.