Check engine light came on while driving was solid left over night was on again this morning when I went down the block, then thought I would tighten gas cap I did then went to start it light not on

Asked by Jun 14, 2017 at 12:16 AM about the 2005 Jeep Grand Cherokee Limited 4WD

Question type: Maintenance & Repair

I was coming home yesterday around corner when
check engine light came on solid and stayed on till I
got home I thought leave it over. Night went out this
morning early down the block still on I then googled
possible causes and saw that a loose gas cap
could cause this I then re tightened the gas cap and
now the light is off Im taking the car to mechanic
tomorrow to make sure everything is ok but I just
want to know would this be the main cause I just
had a service a month ago aswell as a new battery
AC compressor and regas

1 Answer


Yes a loose gas cap will turn on the check engine light, instead of spending money by having a mechanic check it for codes just swing into an autozone and have them check the codes for free, if the only code that shows is for evaporative emission leak then it most likely was the loose fuel cap, just have them clear the code and be on your way. But if there are other codes then write them down and take it to your mechanic for further diagnostics.

1 of 1 people found this helpful.

Your Answer

Jeep Grand Cherokee Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Dodge Durango
223 Great Deals out of 24,454 listings starting at $1,500
Used Ford Explorer
896 Great Deals out of 64,566 listings starting at $1,995
Used Dodge Charger
253 Great Deals out of 33,687 listings starting at $2,000
Used Jeep Wrangler
328 Great Deals out of 20,144 listings starting at $2,900
Used Toyota 4Runner
314 Great Deals out of 30,395 listings starting at $2,500
Used Chevrolet Tahoe
646 Great Deals out of 38,080 listings starting at $995
Used Ford F-150
2,603 Great Deals out of 222,391 listings starting at $1,222
Used Chevrolet Silverado 1500
2,287 Great Deals out of 152,360 listings starting at $1,499
Used BMW X5
369 Great Deals out of 17,245 listings starting at $2,970
Used Ford Mustang
317 Great Deals out of 38,894 listings starting at $1,995

Used Cars For Sale

2018 Jeep Grand Cherokee Limited 4WD For Sale
16 Great Deals out of 11,690 listings starting at $30,986
2017 Jeep Grand Cherokee Limited 4WD For Sale
87 Great Deals out of 2,731 listings starting at $26,386
2016 Jeep Grand Cherokee Limited 4WD For Sale
32 Great Deals out of 846 listings starting at $22,600
2015 Jeep Grand Cherokee Limited 4WD For Sale
105 Great Deals out of 3,953 listings starting at $16,590
2014 Jeep Grand Cherokee Limited 4WD For Sale
33 Great Deals out of 1,614 listings starting at $15,480

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.