over night gas mileage went from great to terrible why

Asked by Sep 06, 2015 at 09:13 AM about the 2006 Chevrolet Cobalt LS

Question type: Maintenance & Repair

We have a 2006 chevy cobalt. It was getting great gas mileage then almost
over night it started burning gas. A 1/4 in 30 miles. Have checked for leaks and
there isn't any and no gas smell coming from anywhere?  What could be wrong

3 Answers

18,800

Check air filter and clean throttle body replace fuel filter if have not done so in a while add Lucas Fuel Injector Cleaner to gas tank.

22,415

When was the last time your engine was serviced? Have you kept up on your maintenance according to the schedule in the owner's manual?

3,935

While firebird's maintenance tips are all important, none of those items cause significant excess fuel consumption, and any performance issues they cause happen gradually, not overnight. Have the trouble codes read. Something has failed or malfunctioned suddenly to cause a sudden increase in fuel consumption. There will be information stored on your car's computer which will tell you where the problem lies.

Your Answer

Add photo

Related Questions

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 3,763 nationwide Cobalt listings starting at $1,497.

ZIP:

Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
lightGear
Reputation 1,150
#2 dandyoun
dandyoun
Reputation 940
#3 munron
munron
Reputation 930
View All

Related Models For Sale

Used Honda Civic
811 Great Deals out of 88,099 listings starting at $1,299
Used Ford Focus
633 Great Deals out of 57,258 listings starting at $795
Used Chevrolet Malibu
1,062 Great Deals out of 77,909 listings starting at $1,500
Used Honda Accord
946 Great Deals out of 77,735 listings starting at $899
Used Chevrolet Impala
591 Great Deals out of 34,068 listings starting at $899
Used Toyota Corolla
860 Great Deals out of 70,584 listings starting at $1,874
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Nissan Altima
1,156 Great Deals out of 79,666 listings starting at $500
Used Dodge Charger
454 Great Deals out of 29,322 listings starting at $2,300
Used Toyota Camry
1,104 Great Deals out of 90,757 listings starting at $1,599
Used Honda Civic Coupe
207 Great Deals out of 16,554 listings starting at $1,100
Used Nissan Sentra
501 Great Deals out of 52,618 listings starting at $2,000

Used Cars For Sale

2010 Chevrolet Cobalt LS For Sale
3 Great Deals out of 13 listings starting at $2,499

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.