Rough idle and little throttle response 4.0 inline 6.

335

Asked by Jan 20, 2017 at 08:38 AM about the 2003 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

Got gas at a marathon station, which I usually don't
do, and then drove about 20 miles to school with
no problems. After sitting in the parking lot ideling
for about 20 mins it started to rough idle on one
cylinder, then multiple cylinders. Tried giving it
throttle and it I had little throttle response, once I
got to rev up to 3k, I held it there for about 15
seconds and it was fine after. It has had spark plug
issues in the past. It also was raining when I got
gas. Any help would be great.

1 Answer

925

Maybe low quality fuel, some water, debris, it happens. Check the fuel filter and the tank at best if this happens again.

Your Answer:

Jeep Grand Cherokee Experts

  • #1
    inuevafreak
    Reputation
    2,250
  • #2
    Tom Demyan
    Reputation
    2,110
  • #3
    thejeepdoctor
    Reputation
    2,090
View All

Related Models For Sale

Used Dodge Durango
339 Great Deals out of 25,377 listings starting at $1,750
Used Jeep Wrangler
212 Great Deals out of 15,006 listings starting at $2,500
Used Ford Explorer
875 Great Deals out of 69,959 listings starting at $695
Used Toyota 4Runner
218 Great Deals out of 33,344 listings starting at $1,995
Used Chevrolet Tahoe
655 Great Deals out of 38,141 listings starting at $1,199
Used Ford F-150
2,319 Great Deals out of 198,937 listings starting at $1,300
Used Chevrolet Silverado 1500
1,787 Great Deals out of 155,768 listings starting at $1,495
Used Ford Mustang
297 Great Deals out of 39,759 listings starting at $1,312
Used Chevrolet Camaro
242 Great Deals out of 26,934 listings starting at $2,900
Used BMW X5
364 Great Deals out of 18,439 listings starting at $1,000

Used Cars For Sale

2018 Jeep Grand Cherokee Laredo 4WD For Sale
3 Great Deals out of 4,300 listings starting at $25,038
2017 Jeep Grand Cherokee Laredo 4WD For Sale
12 Great Deals out of 572 listings starting at $20,795
2016 Jeep Grand Cherokee Laredo 4WD For Sale
5 Great Deals out of 401 listings starting at $18,900
2015 Jeep Grand Cherokee Laredo 4WD For Sale
49 Great Deals out of 1,565 listings starting at $13,325
2014 Jeep Grand Cherokee Laredo 4WD For Sale
12 Great Deals out of 466 listings starting at $12,400

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.