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2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5

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2 weeks 4 days ago #65390 by Kyddrivers
2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5 was created by Kyddrivers
I have a '14 Grand Caravan with a 3.6L engine, and a misfire was reported on cylinder #5.  We have replaced all the plugs and the coil pack for #5.  We swapped the injectors around, but the misfire continued on #5.  What should my next steps be?

Thanks in advance!

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2 weeks 4 days ago #65391 by Chad
Replied by Chad on topic 2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5
I would grab a labscope and capture a Relative Compression waveform. If you don't have a scope, disable fuel and crank the engine. Listen to the cadence. Does it sound smooth and continuous? Or, is there a rhythmic pattern?

Can you feel/hear the misfire when the engine is running?
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)

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2 weeks 4 days ago #65395 by Kyddrivers
Replied by Kyddrivers on topic 2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5
Yes, you can feel it misfiring and running rough. I will check and see if we have access to a scope.

Thanks

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2 weeks 3 days ago #65396 by Noah
Replied by Noah on topic 2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5
I'm with Chad, relative compression with a scope, or at least a traditional compression test with a gauge.
Not uncommon to have valve train issues on these...
"Ground cannot be checked with a 10mm socket"

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1 week 2 days ago #65459 by Hardtopdr2
Replied by Hardtopdr2 on topic 2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5
if no access to scope pull valve cover(s) and look at roller followers this is the common failure item for this engine platform.

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