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2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5

  • Kyddrivers
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1 year 5 months 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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  • Chad
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1 year 5 months 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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1 year 5 months 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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1 year 5 months 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 year 5 months 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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1 year 4 months ago - 1 year 4 months ago #65631 by Kyddrivers
Replied by Kyddrivers on topic 2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5
Thanks for the replies. We did a compression test, and Cylinder 5 is within 10% of another Cylinder tested.  

Where to next?  Is this an electrical issue at Cylinder 5?  Is there an engine control module on this model? 

Thank you in advance for your assistance!
Last edit: 1 year 4 months ago by Kyddrivers. Reason: additional questions

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1 year 4 months ago #65632 by Noah
Replied by Noah on topic 2014 Dodge Grand Caravan SXT 3.6L Misfire on Cylinder 5
What was the compression for all six cylinders?
"Ground cannot be checked with a 10mm socket"

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