Check Engine Light - Multiple Cylinders Misfiring
Junior Member
Joined: Sep 2020
Posts: 20
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From: Buffalo, NY
Check Engine Light - Multiple Cylinders Misfiring
I have a 2004 X-type 3.0L and my check engine light came on last week and the codes are “random misfire” and 5 other codes telling me that cylinders 1,2,3,5,& 6 are misfiring (I should have recorded the exact code numbers and can do that if necessary). I am also getting a mass air flow sensor code intermittently, but just replaced the MAF a few weeks ago. The car runs rough at cold start for about a minute. It drives well after it is warm, but do notice there is a slight loss of power when accelerating.
The car has 55,000 miles (was stored for several years and now my son drives it – very little). I have a hard time believing it is spark plugs and ignition coils with so little miles? The first thing I plan on doing is swapping the ignition coil from cylinder 4 to misfiring cylinder 2 to see if the code switches from cylinder 2 to 4. If that happens I will proceed to replace all of the coils. I will also remove the spark plugs from the front bank and inspect. I will replace those anyways. I am a little afraid to do the rear bank of plugs due to the fact that you need to remove the intake.
Does this sound like a plug/coil issue to anyone since 5 of 6 cylinders are misfiring? Does it sound more like an injector or cam position sensor? I am going to use some Seafoam in the gas tonight with low gas level. I have replaced the mass airflow sensor and cleaned the throttle body.
Any advice would be welcomed. I may have to take it to a shop to have it properly diagnosed.
The car has 55,000 miles (was stored for several years and now my son drives it – very little). I have a hard time believing it is spark plugs and ignition coils with so little miles? The first thing I plan on doing is swapping the ignition coil from cylinder 4 to misfiring cylinder 2 to see if the code switches from cylinder 2 to 4. If that happens I will proceed to replace all of the coils. I will also remove the spark plugs from the front bank and inspect. I will replace those anyways. I am a little afraid to do the rear bank of plugs due to the fact that you need to remove the intake.
Does this sound like a plug/coil issue to anyone since 5 of 6 cylinders are misfiring? Does it sound more like an injector or cam position sensor? I am going to use some Seafoam in the gas tonight with low gas level. I have replaced the mass airflow sensor and cleaned the throttle body.
Any advice would be welcomed. I may have to take it to a shop to have it properly diagnosed.
Joined: Oct 2007
Posts: 121,030
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From: PHX some of the time
Welcome to Jaguar Forums Jaguar Jimmy,
Good to have you with us.
I've copied your post to the tech section, follow this link to find it https://www.jaguarforums.com/forum/x...sfires-282703/
Enjoy the forum.
If you haven't done so already you should add your car details to your signature to help others to help you.
If you need help with getting around and using the forum follow this link for some help Forum Help
Good to have you with us.
I've copied your post to the tech section, follow this link to find it https://www.jaguarforums.com/forum/x...sfires-282703/
Enjoy the forum.
If you haven't done so already you should add your car details to your signature to help others to help you.
If you need help with getting around and using the forum follow this link for some help Forum Help
Junior Member
Joined: Sep 2020
Posts: 20
Likes: 0
From: Buffalo, NY
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