[5th Gen : 08+]: 2014 Dodge Caravan 3.6 cyl 1 misfire
#1
2014 Dodge Caravan 3.6 cyl 1 misfire
I am having a cylinder 1 misfire on my 3.6 l 2014 dodge caravan. So far I have swapped plugs with 1 and 3 and swapped coils with 1 and 5 no change. Next I swapped injectors with 1 and 3 and still showing cylinder 1 misfire. There are no other codes popping up. Any suggestions?
#3
That was on my list. I have had a suspicion that a valve was sticking open because I held a piece of paper up to the exhaust and it had a sucking action. I put some seafoam in the crankcase yesterday and it smoothed out. I am going to run it like that for a week, change the oil and see if it comes back. Thanks for the quick response...
#4
I wanted to update on my progress. I ran a compression test on cyl. 1,3,5 and all 3 cyl came up the same. Just under 150. If a valve was sticking the compression should be lower correct? The misfire comes and goes but it was definitely misfiring when I did the compression test. I know that I am getting fire from the coil to the plug. I was all ready to change the head out but now I'm not so sure. What am I missing?
Just a recap of what I have done:
1. swapped coils with diff cyl
2. swapped plugs with diff. cyl
3. swapped injectors with diff cyl
4. ran a compression test on 1,3,5 all readings the same. (150)
5. I ran sea foam in the crankcase and the misfire immediately went away. After about 300 miles I had the oil changed and it came back in about 2 weeks. Not sure if it was a coincidence or not.
6. Tested for a vacuum leak around the upper intake by spraying carb cleaner around the intake.
7. I did a paper test to the exhaust when it is acting up and it is sucking in. This is one of the main reasons I thought it was a sticking valve, but I should be having a compression issue with that cylinder and I'm not.
Just a recap of what I have done:
1. swapped coils with diff cyl
2. swapped plugs with diff. cyl
3. swapped injectors with diff cyl
4. ran a compression test on 1,3,5 all readings the same. (150)
5. I ran sea foam in the crankcase and the misfire immediately went away. After about 300 miles I had the oil changed and it came back in about 2 weeks. Not sure if it was a coincidence or not.
6. Tested for a vacuum leak around the upper intake by spraying carb cleaner around the intake.
7. I did a paper test to the exhaust when it is acting up and it is sucking in. This is one of the main reasons I thought it was a sticking valve, but I should be having a compression issue with that cylinder and I'm not.
#5
#7
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#8