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03-31-2015, 04:20 PM | #1 | |
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Dodge Grand Caravan 3.3L Engine Vibration
I did a tune up on my 3.3L Dodge Grand Caravan only to find the engine is vibrating heavily. This tune up included a new coil pack, plugs and wires.
I did happen to notice a separate thing when looking at the Crankshaft Pulley that it seemed to be wobbling while the engine was running. Any assistance would be greatly appreciated. |
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04-01-2015, 09:02 PM | #2 | |
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Re: Dodge Grand Caravan 3.3L Engine Vibration
If the vibrating started after the tune up then I would say you got a bad part somewhere, whether it is a plug or maybe a coil. I am wondering though if the check engine light is on or not?? If it is misfiring it should turn the light on. I have seen many crank pulley have some slight wobble to them. I have considered it normal.You have a layer of rubber between two pieces of metal, its going to move some just from the pulses of the engine.
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04-01-2015, 10:23 PM | #3 | |
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Re: Dodge Grand Caravan 3.3L Engine Vibration
it possible you got 2 of the wires on the wrong plugs, check the firing oder and check your plug wires if you didn't have the vibration before the tune up. its also possible you have a incorrectly gapped plug or bad plug
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04-02-2015, 07:21 PM | #4 | |
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Re: Dodge Grand Caravan 3.3L Engine Vibration
Thank you for responding...
I installed a new coil pack, new wires, and new Bosch pre-gapped plugs. Today i noticed an unburnt fuel smell but I checked the spark plug wires and coil against the manual. 1 3 5 2 4 6 is the order of the cylinders. 3 1 5 2 4 6 is the order on the coil. i removed all new plugs looked for cracks in the insulator and then went and cleaned them before re-installing them. i made sure everything clicked in terms of being connected and then fired the engine back up and got the same results. I think my next two steps are to try the original factory coil pack, and then different brand plugs perhaps NGK. |
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