CB Noise

You try a cap on the alternator? Also check resistances on the CB ground connections, but I doubt that's it or it would do it all the time or intermittently. Sounds like maybe alternator induced, although that's usually a whine. Do you have the radio set on automatic squelch? Try shutting that off.

 

Ive had the same prob in a 08 pete and it aws picking up interference with the injectors;i never figured out how too stop it!!

 

That may be a matter of finding the right size cap to use. Different capacitances absorb (if that's the right word) certain frequencies, and you'd probably have to find what freq. they're putting out when they activate. It could also be simply a matter of tagging a cap on the radio power line itself, rather than trying to cut off the matter at it's source.
This is my uneducated guess.

 

Hey Stoplight, I had a similar problem a while back, but the noise would go away when it was raining and when I would hit the brakes. My mechanic told me the steel belted tires from rotating in one direction will start forming a magnetic field and that's where the noise was coming from. I didn't believe him, but, when I got new tires the noise went away.

 

PM sent with the solution(s) to your issue.
Of which is a simple "ground" issue in most cases.

 

In my pickup, I would get noise with my turn signal, and whenever I would put my side window down or wash the windshield.


I flipped the NB/ANL switch up and do not get this noise anymore.

 

I have the same issue in my KW T600. When the truck is off no background noise but when its in 7th gear or higher forget about hearing anybody in the weeds. I run a magnum S980 with 2 K40 20,000 coil antennas. I hate it because I love to talk DX, but since I have been in this truck its hard to hear anyone. I have grounded the k40 mounts sanded paint from the mirror mounts and where the mount to the truck. I have copper wire running to the frame to the mounts, I have ran ground from the frame to the radio. I am going mad with the noise I am picking up from the truck!

 

Forget the "factory" CB hookups (the 2 screw studs on the dash, ceiling...wherever they are)

Hook the radio to the power input for the fuse box...there are usually 2 hot wires (either one will work) and a ground...just be sure there is an inline fuse on the hot wire to your radio.

That is a much "cleaner" and more dependable power source...it DOES NOT require any cutting or splicing of the factory wiring...most are studs with nuts on them, all you need for your radio is an inline fuse if it doesn't already have one and 2 round connectors that can be bought at any truckstop for not much $$$ (maybe $5 for a small box of them)

 

As a rule, I solder all wire connections instead of crimping.