2005 Jeep Grand Cherokee Misfire

Asked by Jan 24, 2017 at 09:45 PM about the 2005 Jeep Grand Cherokee Limited 4WD

Question type: Maintenance & Repair

My original problem was that my Jeep was overheating when idling. We took it to a mechanic and they replaced the water pump. The same night as it was being driven home the lower radiator hose became unattached due to mechanic error. Now with the hose reattached and fluids added by the mechanic I have more problems. My engine light came on, the code was for a cylinder 8 misfire. The mechanic replaced the spark plugs and coil. It still threw the same code. The researched it and found it was the rocker arm. They repaired that issue. All seemed well. Then driving it home tonight the engine light came on again, same code, engine 8 misfire. They pressurized the system and said everything was fine. What else could be going on? It is not running rough like it had been previously except when you are about to stop and goes away when completely stopped.

1 Answer


Check the other coils. Ignition coils don't like to be sprayed with hot coolant. Had the same thing happen to me with my 2000 Grand Prix (different vehicle, I know). A coolant elbo burst and sprayed hot coolant everywhere. After I repaired that it was throwing a misfire code on cylinder number 3. The coil pack had gotten the brunt of the hot coolant spray and it was fried. Replaced the coil pack and cleared the computer and it's been fine for the past year. HTH

Your Answer

Jeep Grand Cherokee Experts

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

Related Models For Sale

Used Dodge Durango
275 Great Deals out of 25,032 listings starting at $1,500
Used Dodge Charger
333 Great Deals out of 36,001 listings starting at $1,999
Used Ford Explorer
1,142 Great Deals out of 68,765 listings starting at $1,200
Used Jeep Wrangler
376 Great Deals out of 20,558 listings starting at $2,500
Used Toyota 4Runner
349 Great Deals out of 29,856 listings starting at $1,500
Used Chevrolet Tahoe
848 Great Deals out of 40,190 listings starting at $1,700
Used Ford F-150
3,116 Great Deals out of 231,599 listings starting at $1,300
Used Chevrolet Silverado 1500
2,774 Great Deals out of 158,085 listings starting at $1,000
Used Honda Accord
849 Great Deals out of 89,027 listings starting at $1,444
Used BMW X5
381 Great Deals out of 16,786 listings starting at $2,800
Used Ford Mustang
354 Great Deals out of 42,607 listings starting at $1,488

Used Cars For Sale

2018 Jeep Grand Cherokee Limited 4WD For Sale
10 Great Deals out of 10,135 listings starting at $30,986
2017 Jeep Grand Cherokee Limited 4WD For Sale
104 Great Deals out of 2,924 listings starting at $27,662
2016 Jeep Grand Cherokee Limited 4WD For Sale
25 Great Deals out of 714 listings starting at $22,599
2015 Jeep Grand Cherokee Limited 4WD For Sale
120 Great Deals out of 3,630 listings starting at $18,991
2014 Jeep Grand Cherokee Limited 4WD For Sale
51 Great Deals out of 1,749 listings starting at $12,890

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.