Misfire Issues
04-11-2018, 06:37 PM
#1
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Location: Albion, Indiana
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Year: 2000
Model: Grand Cherokee(WJ)
Engine: 4.0
Misfire Issues
Ok I have a 2000 Grand Cherokee Larado. I am having misfire issues. The plugs and coil are new. Any thoughts?
04-11-2018, 07:12 PM
#2
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Year: 1999
Model: Cherokee
Engine: 4.0
*Under what conditions? Idle, load, all the time?
*Are you having to add antifreeze to the coolant reservoir?
*Exactly what cylinder(s) are misfiring? Post the exact code, not just a description
*Is the check engine light on now? Is it or has it ever been in a "flashing" mode?
*Are you having to add antifreeze to the coolant reservoir?
*Exactly what cylinder(s) are misfiring? Post the exact code, not just a description
*Is the check engine light on now? Is it or has it ever been in a "flashing" mode?
04-15-2018, 04:21 PM
#3
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Year: 2000
Model: Grand Cherokee(WJ)
Engine: 4.0
Code 0306
*Under what conditions? Idle, load, all the time?
*Are you having to add antifreeze to the coolant reservoir?
*Exactly what cylinder(s) are misfiring? Post the exact code, not just a description
*Is the check engine light on now? Is it or has it ever been in a "flashing" mode?
*Are you having to add antifreeze to the coolant reservoir?
*Exactly what cylinder(s) are misfiring? Post the exact code, not just a description
*Is the check engine light on now? Is it or has it ever been in a "flashing" mode?
04-15-2018, 05:20 PM
#4
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Year: 1999
Model: Cherokee
Engine: 4.0
1. What brand of plugs are you using? Were they gapped to .035 when installing?
2. You could try swapping the #6 fuel injector to another cylinder, then drive it. If your misfire follows to that new cylinder, you have your culprit.
3. Run a compression test. Can't completely ignore the possibility of something internal. A compression test is really quite easy to perform and is a very good "snapshot in time" on how things are going inside.
2. You could try swapping the #6 fuel injector to another cylinder, then drive it. If your misfire follows to that new cylinder, you have your culprit.
3. Run a compression test. Can't completely ignore the possibility of something internal. A compression test is really quite easy to perform and is a very good "snapshot in time" on how things are going inside.
04-15-2018, 05:39 PM
#5
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Join Date: Apr 2018
Location: Albion, Indiana
Posts: 3
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Year: 2000
Model: Grand Cherokee(WJ)
Engine: 4.0
1. What brand of plugs are you using? Were they gapped to .035 when installing?
2. You could try swapping the #6 fuel injector to another cylinder, then drive it. If your misfire follows to that new cylinder, you have your culprit.
3. Run a compression test. Can't completely ignore the possibility of something internal. A compression test is really quite easy to perform and is a very good "snapshot in time" on how things are going inside.
2. You could try swapping the #6 fuel injector to another cylinder, then drive it. If your misfire follows to that new cylinder, you have your culprit.
3. Run a compression test. Can't completely ignore the possibility of something internal. A compression test is really quite easy to perform and is a very good "snapshot in time" on how things are going inside.
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