Rough idle

Asked by Kevin Mar 21, 2018 at 09:08 PM about the 2005 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

Check engine lite on o2sensor. Been ok for 5000
miles.started rough idle ,blinking lite. Reset
pcm,lite out,ran good 50 miles and started all
over.Done this few times to get around. Shop says
no code when not blinking. Heard could be cam or
crank sensor.any ideas.hard to get to shop when it
starts blinking. I live 50miles from town

2 Answers
475

Franco answered 7 years ago

What is the exact code you're getting? I had an issue with my O2 sensor & cat on my 2011 Liberty, that, when cleared, would reappear after 30-60 miles. Ended up having a broken driver-side catalytic converter and since replacing that + the O2 sensors, its been perfect since. During this time, I had 20-30% WORSE fuel economy. Other than the rough idle, are you experiencing any below average fuel economy? How about slow acceleration / need to put your foot down a bit more when accelerating?

Mark helpful

Your Answer:

Related Questions

  • Rough idle 2 Answers

    Check engine lite on o2sensor. Been ok for 5000 miles.started rough idle ,blinking lite. Reset pcm,lite out,ran good 50 miles and started all over.Done this few times to get around. Shop says no c...

    2005 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • Stalling and rough idle problem. 47 Answers

    My 2002 Grand Cherokee 4.0l recently started having rough idle problems. I did a tune up..changed the plugs.....replaced the coil rail.....air filter.....gas filter. The idle is still rough and now i...

    2002 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • Rough idle smoking after running a while 6 Answers

    cranked up it runs fine but after running for 30 minutes it will have a rough idle and smoke

    2002 Jeep Grand Cherokee Overland 4WD

    -

    Maintenance & Repair

  • Misfire/Rough idle 1 Answer

    I have a 99 Grand Cherokee. Recently I replaced the head gasket and took the head to the shop for valve job and resurface job. While in there I replaced the Lifters, Push rods, rocker arms, timing c...

    1999 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • Rough idle and stalling 2004 jeep grand cherokee laredo 3 Answers

    So today on my lunch break i drove 2 maybe 3 miles then parked for 30min to eat lunch, i left the car running all the way for 30min. i usually dont leave the car running. i turned the car off for 10...

    2004 Jeep Grand Cherokee Laredo

    -

    Maintenance & Repair

Shortcuts

Search Jeep Grand Cherokee Questions

CarGurus Experts

  • #1
    Hornet_2497
    Reputation
    9,010
  • #2
    Gene Arnett
    Reputation
    7,010
  • #3
    thejeepdoctor
    Reputation
    6,620
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Dodge Charger
25 Great Deals out of 478 listings starting at $6,995
Used Dodge Durango
52 Great Deals out of 1,825 listings starting at $6,495
Used Jeep Wrangler
93 Great Deals out of 4,476 listings starting at $6,995
Used Ford F-150
238 Great Deals out of 13,735 listings starting at $1,795
Used Ford Explorer
59 Great Deals out of 2,408 listings starting at $5,950
Used Chrysler 300
22 Great Deals out of 415 listings starting at $2,998
Used Toyota 4Runner
19 Great Deals out of 496 listings starting at $13,888
Used Chevrolet Tahoe
21 Great Deals out of 623 listings starting at $4,998
Used Chevrolet Silverado 1500
172 Great Deals out of 5,498 listings starting at $4,000
Used Chevrolet Corvette
39 Great Deals out of 1,021 listings starting at $17,499

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. Content will be removed if CarGurus becomes aware that it violates our policies.