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Thread: Engine Vibrating At Idle - Cause Exhaust Pipe Rattle

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    Mopar65's Avatar

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    Question Engine Vibrating At Idle - Cause Exhaust Pipe Rattle

    Hello, I am new here, and sorry if I post a Dumb question, but I have a problem with the truck in my signature.

    I forgot to add that my truck has had parts fall off and is tuned by the Doctor.

    I have a problem with my damn 5-inch Exhaust pipe ratting at an idle.

    I went through it last night and tightened all the exhaust pipe band clamps and the downpipe clamp.

    The clamp was loose, and I changed out of the rubber exhaust hangers and did all that, and the exhaust was still ratting.

    I looked some more and found out it seems like the engine has a vibration at idle.

    The engine is not missing, drives fine with lots of power, and is not smoking.

    I have only had the truck for a few months and still getting used to it.

    The truck has around 174,000 miles on it.

    I have only noticed the engine vibrating/ not running smoothly at an idle for a week now.

    I am not sure what could be causing it.

    Could an injector go bad cause of what I am talking about?

    I am not sure where to look.

    Black Loan Star 2016 Ram 2500 Mega Cab 4x4, 6.7 cummins/ 6 speed Auto Transmission.. Falken 35x12.5x18 Tires, banks 3.5 monster boost Tubes. MM3 Tuner.
    SARGENT MILLER.
    PROUDLY SURVED 12 YEARS IN THE Army Reserves.
    Support our Troops

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    MOD watersupply189's Avatar

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    Re: Engine Vibrating At Idle - Cause Exhaust Pipe Rattle

    If it were an injector, then you would see smoke.

    Check your heat shields to see if they are loose or the 5” pipe is against it or against anything causing it to rattle.

    Also, when was the last time the fuel filters were changed out?

    It could also be you got a batch of the wrong fuel.

    Keep us, updated friend.


    2016 Ram Laramie 3500, G56, 6.7, CC, 4x4

    2016 RAM 3500 4x4 Laramie Crew Cab
    Cummins,G56, Rough Country level, Morimoto LED fog lights, LED headlights, Lund Attitude Steps sprayed with Line-X, DRL's Activated, 35x12.50R18 Falken Wildpeak ATW3, Fuel Vapor Wheels Matte Black w/Dark Tint, A.R.E. Truck cap and swing boxes

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    Mopar65's Avatar

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    Re: Engine Vibrating At Idle - Cause Exhaust Pipe Rattle

    The spare tire shield was rubbing, but I bent it back.

    I changed out 2 of the rubber exhaust hangers with parts store ones. which seemed to help some.

    But I will end up just ordering all new ones from the dodge dealer.

    Also, I am not sure what 5-inch system is on my truck, but it is 5 inches.

    I will save up my money and buy a new 5-inch FLO~PRO.

    That's what I thought on the injector.

    The truck runs excellent, but you can feel it vibrating if you lay your hand on the front fender.

    I haven't got a chance to check the engine mounts for looseness yet.

    I will change the fuel filters this Thursday while I am changing the engine oil.

    My filters are down to 12 percent.

    Thank you for responding to my post

    Black Loan Star 2016 Ram 2500 Mega Cab 4x4, 6.7 cummins/ 6 speed Auto Transmission.. Falken 35x12.5x18 Tires, banks 3.5 monster boost Tubes. MM3 Tuner.
    SARGENT MILLER.
    PROUDLY SURVED 12 YEARS IN THE Army Reserves.
    Support our Troops

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    Re: Engine Vibrating At Idle - Cause Exhaust Pipe Rattle

    Well, I am happy to say I fixed my rattling exhaust pipe.

    I ended up finding the backside of the MBRP muffler was cracked all around wear the exhaust pipe hooks up to it.

    I didn't want to spend $200 for just a muffler, going to buy a new 5-inch floor exhaust system next year.

    So I just added a section of 5-inch straight pipe.

    Thanks again for the help everyone

    Black Loan Star 2016 Ram 2500 Mega Cab 4x4, 6.7 cummins/ 6 speed Auto Transmission.. Falken 35x12.5x18 Tires, banks 3.5 monster boost Tubes. MM3 Tuner.
    SARGENT MILLER.
    PROUDLY SURVED 12 YEARS IN THE Army Reserves.
    Support our Troops

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    Re: Engine Vibrating At Idle - Cause Exhaust Pipe Rattle

    Quote Originally Posted by Mopar65 View Post
    Well, I am happy to say I fixed my rattling exhaust pipe.

    I ended up finding thewereside of the MBRP muffler was cracked all around wear the exhaust pipe hooks up to it.

    I didn't want to spend $200 for just a muffler, going to buy a new 5-inch floor exhaust system next year.

    So I just added a section of 5-inch straight pipe.

    Thanks again for the help, everyone
    Glad you found the issue.

    Did you ever figure out the other issue you were having?


    2016 Ram Laramie 3500, G56, 6.7, CC, 4x4

    2016 RAM 3500 4x4 Laramie Crew Cab
    Cummins,G56, Rough Country level, Morimoto LED fog lights, LED headlights, Lund Attitude Steps sprayed with Line-X, DRL's Activated, 35x12.50R18 Falken Wildpeak ATW3, Fuel Vapor Wheels Matte Black w/Dark Tint, A.R.E. Truck cap and swing boxes

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    Re: Engine Vibrating At Idle - Cause Exhaust Pipe Rattle

    Quote Originally Posted by watersupply189 View Post
    Glad you found the issue.

    Did you ever figure out the other issue you were having?


    2016 Ram Laramie 3500, G56, 6.7, CC, 4x4
    i think the vibration i was feeling in the truck was from the exhaust pipe rattling.

    I can hardly feel the vibration in the fender now.

    Black Loan Star 2016 Ram 2500 Mega Cab 4x4, 6.7 cummins/ 6 speed Auto Transmission.. Falken 35x12.5x18 Tires, banks 3.5 monster boost Tubes. MM3 Tuner.
    SARGENT MILLER.
    PROUDLY SURVED 12 YEARS IN THE Army Reserves.
    Support our Troops

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