Lincoln 2 plus noise in 2018 Chevy Silverado Z71 Help

[RC4]

Hello all first time here! So I hope this is the right forum to post this.
Ill try to keep this short as possible.
I have a 2018 Chevy Silverado Z71 with a president Lincoln 2+. Francis 6foot Hot rod driver side hood fender mount 18' coax RG8x and wired straight to the battery ground as well. 1.3 SWR most of the time. My problem is, #1-I get like 6 or 7 lights of Static. #2 When I turn my steering wheel Left or right I get even more static and when I turn my wheel my radio also dims a little bit.
My question is should i be running to my fuse box? OR should I try getting a 2nd battery and just running the radio off that? I don't know if its a power issue, a ground issue an Antenna issue or a truck issue. I know these Lincolns can get a bit noisy and I understand that but 7 lights worth? Its like 7 or 8 DB of crap! I've never experienced this with any other Vehicle I have ever owned. Is this what white noise is?

Any help would be great! Thank you

 

[KB4MSZ]

Try connecting the ground to the vehicle chassis at a point as close to the radio as possible, rather than directly to the battery. Leave the positive on the battery.

 

[KEWB-N1EXA]

My Isuzu has ignition issues making noise so I ran coax from the battery to the radio and ran the power through the rg8x. And no not the antenna coax!I brought it down a bit. In your case sounds like computer issues ties to your 4wd electric differentials that and are you running led head lights they are pretty noisy when they run.
I had electric switchable diffs on my GMC Sierra.
Went to halogen headlight too.
pete N1EXA

 

[mmckenna]

There's a couple of things I'd suggest.

I've installed a lot of radios in similar trucks, but they were all VHF. But the general install practices apply...

Powering the radio directly off the battery is the correct way to do it. Do NOT power it off the fuse block.

Negative power lead should go to a body ground as close to the radio as you can get it. Find a grounding point under the dashboard and connect the negative power lead there.

On some really weird noise issues, I've had luck also grounding the radio chassis directly to body steel as close to the radio as I can. Yes, I know the radio is grounded through the negative lead. A radio chassis to body ground can help.

Make sure all your power wiring is run separate from any existing vehicle wiring as much as possible. There's a lot of CAN BUS stuff in these modern vehicles that can be noisy.

Same with the coaxial cable, make sure it's routed away from other vehicle wiring.

You may want to try moving the antenna to the other side of the vehicle. There are noise sources under the hood and having the antenna close to those could be a problem. Ideally, you want the antenna mounted on the center of the cab roof, but I know that's not always possible. Better ground plane and away from noise sources can really make it worthwhile.

The power steering on those trucks is electric. I think addressing the power wiring as I suggested above may help.

You don't need a second battery for a CB. Wired correctly, you shouldn't have any issues.

 

[W9WSS]

You have received some sage advice from professionals on this and other forums. Do what you can following the professionals' directions, but DON'T downgrade to a magnetically-mounted antenna. You're only asking for mega issues including scratching the paint surface, inferior grounding/bonding issues, and more.

 

[TomLine]

Do the lights dim when the antenna is disconnected from the radio?
Is there an electronic box between the battery post and where it is connected to ground?
Have you tried attaching the negative lead to the body near the battery instead of the terminal?

 

[mmckenna]

Is there an electronic box between the battery post and where it is connected to ground?

These trucks have a hall effect sensor on the negative battery strap that runs from the battery to the chassis. It's there to sense current consumption and adjust alternator output (and thus load on the engine) depending on that current and system voltage.

The owners manual specifically speaks to this and tells you not to connect anything directly to the negative terminal on the battery since it can bypass the hall effect sensor and create issues.

 

[RC4]

Do the lights dim when the antenna is disconnected from the radio?
Is there an electronic box between the battery post and where it is connected to ground?
Have you tried attaching the negative lead to the body near the battery instead of the terminal?

I have not tried that yet tbh. My positive wire was connected to a terminal that was between my negative and positive with many other cables going to it as well. I've never seen that before so I moved it to the main positive terminal. Didn't really notice much of a difference on that either. I also did have it grounded in the cab near the dash but i moved it to the battery. Didn't notice any change either. The radio is pretty quiet when the truck is off but when I start it I get tons of static / White noise.

 

[mmckenna]

The radio is pretty quiet when the truck is off but when I start it I get tons of static / White noise.

OK, so here's two things you can try:

With the truck running and the radio receiving the noise, try disconnecting the coax at the back of the radio and let me know if the noise stops.

Try disconnecting the power at the radio and connect it directly to a separate 12 volt battery not connected to the truck and let me know if that changes the noise.

 

[RC4]

OK, so here's two things you can try:

With the truck running and the radio receiving the noise, try disconnecting the coax at the back of the radio and let me know if the noise stops.

Try disconnecting the power at the radio and connect it directly to a separate 12 volt battery not connected to the truck and let me know if that changes the noise.

Yes when I disconnect the coax the radio goes silent. I have not tried a separate battery yet.

 

[mmckenna]

OK, well, if it goes silent when the antenna is disconnected, that means the noise is getting in your radio via the antenna and/or coaxial cable.

You may need to relocate your antenna and reroute your cable. It's picking up noise from the truck.

 

[RC4]

OK, well, if it goes silent when the antenna is disconnected, that means the noise is getting in your radio via the antenna and/or coaxial cable.

You may need to relocate your antenna and reroute your cable. It's picking up noise from the truck.

You're probably right.

 

[mmckenna]

I tied in VHF radios off the connection point at the battery, sounds like a similar place you did. We were running more stuff, so the GM snow plow fuse kit added a stud and a 60 amp fuse in a spare slot in that box that sits over the battery. Ran 6 gauge into the cab and fused distribution block in the back. Tied in ground under the rear seat. Didn't have any noise issues on VHF. None of them are running CB's, so not much help there.
They did all have permanent NMO mounts on the roof.

Mounting antennas close to the engine like that can be a source of noise. Might try moving it back on to the bed rail, or better yet, NMO on the roof dead center with something like a Laird C27 or Larsen NMO-27 antenna.

 

[slowmover]

Hood (fender) antenna mount just isn’t good for any reason except it was easy to do. Now you partly know WHY.

The other is that it’s poor for TX. It’ll reach directly across the road, but is sorry for up & down the highway. That’s the other part.

 

[RC4]

Hood (fender) antenna mount just isn’t good for any reason except it was easy to do. Now you partly know WHY.

The other is that it’s poor for TX. It’ll reach directly across the road, but is sorry for up & down the highway. That’s the other part.

I’ve always used hood mounts they’ve always worked well for me but not so much with his truck. And I’m not really sure where else I could put it. It can’t put it in middle of my hood lol it can’t go on the top of my truck so I’m a bit limited on where I can mount this antenna.

 

[TomLine]

Hookup a magnet mount and try different locations?
On another subject? When you turn squelch to manual, does the audio (static) go dead quiet as soon as you move it to squelch "1", even though the meter says 3,5,7 signal strength? ?

 

[RC4]

Hookup a magnet mount and try different locations?
On another subject? When you turn squelch to manual, does the audio (static) go dead quiet as soon as you move it to squelch "1", even though the meter says 3,5,7 signal strength? ?

Yes it does!!!!! You had the same problem I take it ?

 

[TomLine]

Yes my II+ does the same. However, the squelch of signals does seem to work. If you call them, let us know what they tell you.
I keep volume, power, and squelch pointing straight up, and both mic/rf gain at 75%.
Good luck with the antenna. You'll figure it out. Pictures help.

 

[RC4]

Ok to

Yes my II+ does the same. However, the squelch of signals does seem to work. If you call them, let us know what they tell you.
I keep volume, power, and squelch pointing straight up, and both mic/rf gain at 75%.
Good luck with the antenna. You'll figure it out. Pictures help.

Ok you lost me at call them. Call who?
And I have a video of it.

President Lincoln 2 plus static help? Why??? - YouTube

 

[TomLine]

Nice video.
If you set that squelch up past 1, are you still hearing the electrical noise when recieving ? I assume squelch in the video is at manual-0 and as soon as you select manual-1, the audio is squelched? If you run it at like manual-15, are you still dealing with noise?
I've asked President about why their squelch is so different, and can't get any answer out them. Would like to see their real service manual. Pick me up in your truck and we'll drive down there to Florida and ask the guy