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Thread: Noisy RX - Ford install - help?

  1. #26
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    Buy a Chevy? I have the exact same problem with my Excursion. The fix? I listen to CDs instead of the radios.
    Apparently NOT a radio professional.


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  3. #27
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    Quote Originally Posted by com501 View Post
    Buy a Chevy? I have the exact same problem with my Excursion. The fix? I listen to CDs instead of the radios.
    My Chevy has lots of RFI issues with the advent of the infotainment system. My 08 truck had no issues. My 14 has taken a noticeable hit on all bands when its running.
    Schrodinger's Radio: It is simultaneously too loud and too quiet, but you will never know which until someone transmits.

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  5. #28
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    Our '14 Tahoe was a nightmare with RF issues.

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    It's like looking for a needle in a haystack except if you try to sniff it like has been said. As far as injectors and fuel pumps go, it could be a poor ground or a poorly designed ground.

    As far as accelerating and it increases; it could be the fuel pump, injector and lets not forget output shaft (speed) signal feeding the ECM the speedometer information.

    One easy thing (not easy without a hoist) is to check the ground on the fuel pump. Find where it is grounded, to the frame in most cases, unbolt it and buff the paint off the connection.

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    All good info. Next to impossible to test by myself in a parking lot without any tools/hoists/privacy. Can't even vacuum my vehicle (cordless model) without half the ******* place coming out and asking "what are you up to". They're so nosy. I told one guy "I don't know you. It's none of your business." People are fucked. It would be nice to have a garage and live in the middle of nowhere.

    I was carrying a transparent plastic container (with dividers in it) full of RF connectors/adapters with me the other day. Some ******* says "Looks like you have a pretty interesting hobby there!". I said "they're parts for my car. You should stop commenting on things people are doing or carrying with them at this building. People are entitled to privacy and don't have to answer to their neighbours. I'm not interested in making conversation with you".

    You guys with houses/garages are so damn lucky.

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  10. #31
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    That doesn't stop neighbors one bit.

    Well, never stopped me anyways. (big grin)
    Bow wow wow yippie yo yippie yay

  11. #32
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    Some of us have large acreage with fences and rifles. Also a guest house, if interested (and you can just come across the border without signing in, like tens of thousands are doing a month here....).
    Apparently NOT a radio professional.

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  13. #33
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    Quote Originally Posted by Mars View Post
    All good info. Next to impossible to test by myself in a parking lot without any tools/hoists/privacy. Can't even vacuum my vehicle (cordless model) without half the ******* place coming out and asking "what are you up to". They're so nosy. I told one guy "I don't know you. It's none of your business." People are fucked. It would be nice to have a garage and live in the middle of nowhere.

    I was carrying a transparent plastic container (with dividers in it) full of RF connectors/adapters with me the other day. Some ******* says "Looks like you have a pretty interesting hobby there!". I said "they're parts for my car. You should stop commenting on things people are doing or carrying with them at this building. People are entitled to privacy and don't have to answer to their neighbours. I'm not interested in making conversation with you".

    You guys with houses/garages are so damn lucky.
    Your neighbors must be pretty bored or have no day jobs. I lived at a place like that. I did get a pretty tempting invite from a tipsy stewardess next door, who told me she had just broken up with her boyfriend. (Kicking myself days later).

    You should keep a stack of bibles in your trunk and when they bother you, tell them you are a bible salesman and then go into a long winded sales and Chistian recruitment pitch. Or you could tell them you sell funeral plots and describe the mortuary arts in graphic details to them.

    Of course those could all go wrong if they are born again or Goths. Maybe a Scientolgy pitch would be safer.

    Do they have a Hacker or Maker Space up there?

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  15. #34
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    Quote Originally Posted by RFI-EMI-GUY View Post
    You should keep a stack of bibles in your trunk and when they bother you, tell them you are a bible salesman and then go into a long winded sales and Chistian recruitment pitch. Or you could tell them you sell funeral plots and describe the mortuary arts in graphic details to them.

    Of course those could all go wrong if they are born again or Goths. Maybe a Scientolgy pitch would be safer.
    Jehovahs Witness might have better results at making them walk away than the Christian tactic.

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    Quote Originally Posted by bstafford View Post
    Jehovahs Witness might have better results at making them walk away than the Christian tactic.
    Honestly in my expereince, JW are very cordial when you tell them that you are happy with your religion, thank you . The Born Again Christians like to keep probing for a hole in your life. Are you saved? Is the concern they all have. I am thankful so many Christians in my life are concerned that I may go to hell. I trust they go home and say a prayer and put in a good word for me. Apparently I need all the help I can get!



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  19. #36
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    Quote Originally Posted by alf2109 View Post
    Our '14 Tahoe was a nightmare with RF issues.
    Civilian or PPV? All of the PPV Tahoe installs I've done haven't had any problems. Granted, I have yet to put a low band radio in one (might find out by the end of the year) but high band and up work fine.
    "The Girl Scouts found several hungry REACT members at the finish line..."

  20. #37
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    Quote Originally Posted by motorola_otaku View Post
    Civilian or PPV? All of the PPV Tahoe installs I've done haven't had any problems. Granted, I have yet to put a low band radio in one (might find out by the end of the year) but high band and up work fine.
    An SSV with V & U XTLs. Maybe the upfitter, but the RF noise would come and go. Additionally, the factory AM/FM would go silent for minutes or hours at a time

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    Quote Originally Posted by alf2109 View Post
    An SSV with V & U XTLs. Maybe the upfitter, but the RF noise would come and go. Additionally, the factory AM/FM would go silent for minutes or hours at a time
    Interesting. Would def need to see the work done by the upfitters before definitively pinning it on the vehicle chassis.

    All of the ones I've done sourced B+ and ground from the aux battery, and all of the antennas were installed with paint scraped off the metal inside and less than 1 ohm resistance from shield to battery ground at the device. The NMO kits were Larsen NMOKHFUD which are continuous impedance and use braid over foil RG58.
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    Quote Originally Posted by motorola_otaku View Post
    Interesting. Would def need to see the work done by the upfitters before definitively pinning it on the vehicle chassis.

    All of the ones I've done sourced B+ and ground from the aux battery, and all of the antennas were installed with paint scraped off the metal inside and less than 1 ohm resistance from shield to battery ground at the device. The NMO kits were Larsen NMOKHFUD which are continuous impedance and use braid over foil RG58.
    Purportedly, the AM/FM issue is a known problem with the 14-15 'hoes. No way the upfitters scrapped any paint when they did the install.
    Our fleet has been replaced by Fords . . . The new upfitters seem to have brought their own set of issues. I'll be posting XTL install pics later today.

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    Another vote for fuel injectors. Had a Freightliner with a commonrail Cummins that did exactly this.

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    Just yesterday I troubleshot a "squigley screen" complaint on a Init CoPilot system down to the AC compressor unit on a bus.

    Buses in general have trashy electrical systems with lots of things putting noise on the mains. From the mechanics perspective, everything works just fine. It starts, it accellerates and brakes, it shifts, the lights work, the doors open, the fans turn, the lift operates, the signs display, the public address makes sound, etc etc. The concept that things put noise on the DC feed is foreign to them, and they don't want to deal with it because they are working blind. I've given them buttsets to listen to the DC lines, but the noises don't mean anything to them. They want an oscilloscope of the mains on their diagnostics computer that plugs into the engine management port. All they get is a VDC measurement, and it doesn't change much under load.

    In this case, an El Dorado conversion of a 2014 Chevy diesel would scramble the screen of the operator radio touchscreen. Completely unusable until you stop the engine. That's not going to happen very often when it's on route. But methodically, one fuse at a time, we disabled devices while the screen was wigging out until we got to the compressor. Lots of things made the screen glitch, but it always restored quickly. The compressor hosed it.

    Me personally, I think it's a hundred penny problem, not a dollar. I think there are multiple bad grounds, battery points, and old connections adding to the overall inability of the batteries to sink the noise on the line. The compressor is just the last straw.
    Bow wow wow yippie yo yippie yay

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