Jeep Patriot Forums banner
Cancel
Create thread New Garage Forums

2015 jeep Patriot sport 2.4l sputtering

Jump to Latest
1 - 9 of 9 Posts
#2 ·
Does the sputtering continue as it warms up? Does it go away after it's warm or re-occur on a warm re-start, or just first time on a cold start? Also, have you noticed any other hesitation or degradation in performance?
 
Discussion starter · #3 ·
DeepCherry2015 said:
Does the sputtering continue as it warms up? Does it go away after it's warm or re-occur on a warm re-start, or just first time on a cold start? Also, have you noticed any other hesitation or degradation in performance


I am not sure it tripped me out so turned it off 🤣, then restarted and it didn't happen on the 2nd start, and then only other issues is going up hill it tends to struggle and the the engine seems to idle rough at times... But gas mileage is still at about 27 mpg.
Click to expand...
 
#4 ·
Were the plugs replaced by a pro mechanic, and do you know what kind of plugs they used? If the plug gap is incorrect (I have found a LOT of new ones out of the box that way!), and not checked, it can cause mis-firing. Your symptoms are those of incorrectly gapped, or wrong plugs for the application. I have also seen brand new plugs that were damaged with a hairline crack, sometimes not visible, show the same symptoms. I would take it back to whoever did the plugs and have them re-check their work.
 
#6 ·
I would start by pulling the plugs and coil packs and double checking everything. I do know from working on my Hemi Daytona, you can sometimes run into issues if you use aftermarket coil packs, especially auto parts store stuff. Was there a reason the coil packs were changed? Also, check to make sure that none of the 4 boots going from the COP to the plug are damaged. If it does set a mis-fire code (like a P0301, P0302, etc.), you can swap the coil pack from that cylinder to another and see if the problem follows where it was swapped to. If so, replaced the COP.
 
Discussion starter · #7 ·
DeepCherry2015 said:
I would start by pulling the plugs and coil packs and double checking everything. I do know from working on my Hemi Daytona, you can sometimes run into issues if you use aftermarket coil packs, especially auto parts store stuff. Was there a reason the coil packs were changed? Also, check to make sure that none of the 4 boots going from the COP to the plug are damaged. If it does set a mis-fire code (like a P0301, P0302, etc.), you can swap the coil pack from that cylinder to another and see if the problem follows where it was swapped to. If so, replaced the COP.
Click to expand...
Yes cause the 2nd coil pack went bad so I just changed them all... Then the coil packs went to crap again so yea
DeepCherry2015 said:
I would start by pulling the plugs and coil packs and double checking everything. I do know from working on my Hemi Daytona, you can sometimes run into issues if you use aftermarket coil packs, especially auto parts store stuff. Was there a reason the coil packs were changed? Also, check to make sure that none of the 4 boots going from the COP to the plug are damaged. If it does set a mis-fire code (like a P0301, P0302, etc.), you can swap the coil pack from that cylinder to another and see if the problem follows where it was swapped to. If so, replaced the COP.
Click to expand...
There is no codes, as of yet... What is the COP? But will check the plugs, and coil packs... I don't know I am at wits end at this point... I just don't want to screw up my jeep...
 
#8 ·
COP stands for Coil On Plug, which is the coil pack assy. Let us know what you find after double checking everything. Pay specific attention to the condition of the boots, looking for any hairline cracking or deterioration of the rubber, and any hairline cracks to the porcelain on the plugs.
 
#9 ·
@JeepPatriotGirl79, have you told us what year your Patriot is? Just a thought here, but if this is a problem only in the morning or when it is damp, you could have bad plug wires. This was a typical problem on older cars, though I haven't heard much about it in recent years. Maybe with the coils right on the plugs we don't get that problem any more. Like I said, just a thought, but if you've tried everything else, maybe give it a shot.
 
1 - 9 of 9 Posts
About this Discussion
8 Replies
3 Participants
Last post:
Ignatz
Jeep Patriot Forums
posts
678K
members
55K
Since
2006
Join our community to discuss the Jeep Patriot & Jeep Compass. Find answers to all your Jeep Patriot technical questions.
Full Forum Listing
Explore Our Forums
Jeep Patriot General Discussion Engine and Drivetrain Newbie Check-In Suspension and Tires Electrical and Audio