Ram 2018 noise elimination.

Discussion in 'Mobile Radio' started by KW4RI, Mar 8, 2020.

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  1. KW4RI

    KW4RI Ham Member QRZ Page

    Installed my 857D in my Ram truck with turbo diesel and getting lots of injector noise in radio. I have bonded quite a bit with still no luck getting rid of the noise. I have ordered some 31 mix ferrites to put on the rg8x.
    Any other suggestions would be appreciated.

    K0UO likes this.
  2. AF9US

    AF9US Premium Subscriber QRZ Page

    Mike, KW4RI:

    A good place to start: https://www.k0bg.com/ignition.html. The rest of the K0BG site is very interesting too.

    I own a Ford F-450 with twin turbo chargers. I don't hear any injector noise on my FT-991 with the ATAS 120 antenna mounted in a stake pocket in the cargo bed.

    There may be a Dodge Ram truck group on the web. They may have more specific answers for your truck.

    Ultimately, shielding the injector wires to reduce or eliminate the pulse noise closer to the source, rather than, trying to eliminate the noise from the radio receiver, would be the better strategy.

    Wishing you success,
    Bernie, AF9US

    K0UO likes this.
  3. KW4RI

    KW4RI Ham Member QRZ Page

    Thanks Bernie for your reply and I do agree. However, it is easier said than done on these later model diesel vehicles. I can't even see much less get to the injectors to shield the wires. That was my original intent. Thanks again, and I will keep on trying to figure it out.
    K0UO likes this.
  4. WL7PM

    WL7PM Ham Member QRZ Page

    Install a 12 valve mechanical injection Cummins 5.9 from a First Gen... Those are RF SILENT !
    WD5GWY and K0UO like this.
  5. K0UO

    K0UO Platinum Subscriber Platinum Subscriber QRZ Page

    HF mobile operation nowadays is a labor of love. Every time I change trucks it gets worse.
    You're lucky you're not getting back into the vehicle's computer system! I killed a couple of computers on my new Duramax. The first one I had 35 miles on the vehicle then after about 20 more ferrite beads and 30 more feet of ground straps it did it again at 700 miles!!!

    I had another friend, that popped the airbags on his Ram, that would be a heck of a surprise, also very costly!

    My current truck is quiet into the radio but I'm still getting into the ADS breaking fault lights, I put 31s on each wheel sensor, with no results.

    Good luck, cheapest posted like I said it's a labor of love you'll finally get it.

    Ground everything like the hood, the doors, bed on all 4 corners, cab, Muffler & pipe in 2 or 3 places, that really quieted things down and gets rid of ground loops.

    What type of antenna are you running and where is it mattered at?
    I have found by changing the antenna or location and how it's grounded, you will eliminate Some Noise getting back in from the vehicle system.
    Last edited: Mar 9, 2020

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