why is my mpg so low???

95

Asked by Jun 30, 2009 at 01:24 AM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

i dont beat on my truck and and i put a chip in it for better gas milage i have a k&n filter and i just cleaned it but it still doesnt get any better gas milage, the check engine soon light has been on for over a year, i took my truck to a mechanic and he doesnt know whats going on..
i did get about 16 or 18 mpg when i bought this truck and 1 of my friends needed a vehicle so he used my truck, and since i got it back from him my truck gets about 5 mpg!!

2 Answers

75

Go to Auto Zone and they can tell you what your code is, go from there>

1 of 1 people found this helpful.
7,275

yep. thats what i would do too. diagnostic check is free there. also, im guessing that the chip is probably causing this problem. with a stock o2 sensor with the chip its probably throwing off a reading. might need a different o2 sensor with the chip. jsut a thought. autozone will be more help

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • Low oil pressure at start 2 answers

    Live in California have 320,000 miles on truck am getting 20 lbs at cold start looking for a reason.

    2000 Chevrolet Silverado 1500 LS Ext Cab Short Bed 2WD

    -

    Maintenance & Repair

  • Why the volume will not play louder? 1 answer

    The volume from my 08 Silverado is so low that I can not hear my music.

    2008 Chevrolet Silverado 1500 Work Truck Crew Cab

    -

    Maintenance & Repair

  • Low oil pressure after piston change 6 answers

    2010 Silverado 5.3 L Chevy dealer just changed all my pistons for oil ring issue after blowing me off for 2 years. 72 miles after picking it up oil pressure dropped to 19 psi. Ck eng light came on, ...

    2010 Chevrolet Silverado 1500 LTZ Crew Cab 4WD

    -

    Maintenance & Repair

  • Is the front differential bad? 4 answers

    My truck will go into 4wd high, but not 4wd low. It also makes an oscillating low frequency noise up front. Not in the engine, underneath

    2004 Chevrolet Silverado 1500 Z71 Crew Cab Short Bed 4WD

    -

    Maintenance & Repair

  • 1994 Chevy Silverado 1500 (k1500) Upgrades? 12 answers

    I would like to know what some good upgrades on my 94 chevy would be its a 5.7 350. Im lookinfg for better mpg and a little more power and a nice purr. I have heard of running headers into flowmast...

    Chevrolet Silverado 1500

    -

    Car Customization

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,200
#2 Rowefast
Rowefast
Reputation 1,840
#3 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,630
View All

Related Models For Sale

Used GMC Sierra 1500
822 Great Deals out of 68,199 listings starting at $2,484
Used Ford F-150
2,194 Great Deals out of 206,316 listings starting at $1,499
Used Dodge Ram 1500
453 Great Deals out of 11,151 listings starting at $700
Used Chevrolet Silverado 2500HD
307 Great Deals out of 27,747 listings starting at $1,250
Used Toyota Tundra
443 Great Deals out of 34,312 listings starting at $2,700
Used Toyota Tacoma
544 Great Deals out of 40,814 listings starting at $2,495
Used Chevrolet Tahoe
550 Great Deals out of 29,235 listings starting at $1,699
Used Ram 1500
925 Great Deals out of 113,958 listings starting at $6,386
Used Chevrolet Colorado
217 Great Deals out of 24,313 listings starting at $2,495
Used Chevrolet Camaro
225 Great Deals out of 30,943 listings starting at $1,217
Used Ford F-250 Super Duty
346 Great Deals out of 46,938 listings starting at $1,895
Used Chevrolet Silverado 2500
8 Great Deals out of 266 listings starting at $3,488
Used Chevrolet Silverado 1500HD
18 Great Deals out of 258 listings starting at $3,985
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Dodge Charger
407 Great Deals out of 28,172 listings starting at $1,988

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.