| Author |
Message |
    
Davec
| | Posted on Wednesday, December 17, 2003 - 5:25 pm: | 
|
I have a Cobra 29 installed in a Ford p/u f-150 with a Wilson 1000 magnet mount. The hot and ground are connected directly to the battery and the engine noise and static is very annoying. I've installed a filter that does absolutely nothing. Does anyone have a solution to this before I go crazy? |
Dx431
| | Posted on Wednesday, December 17, 2003 - 7:57 pm: |
|
Is the static coming from the engine or the electric fuel pump? If it's the fuel pump you'll have install a filter inline with the wires going to the fuel pump. Thats 1 suggestion.......my second suggestion would be, I'm assuming that the ant is on the roof? so, did you try moving the ant to different locations to see if the noise dissappears? Try these suggestions and let us know how it turns out. |
manwich
| | Posted on Wednesday, December 17, 2003 - 11:00 pm: |
|
I had the same problem with my Ford Ranger, it was the fuel pump, and I suspect it is the same in your installation. A quick way to find out is fire up the rig, move your key to the "ON" position but DO NOT start the vehicle!!! If you hear hash for about a second or so and then nothing, it is your fuel pump (it has to pressurize the fuel system...). If it is your fuel pump, Ford has a kit designed to lower the noise (I forget the TSB but it is out there). I imagine this is an older truck as the newer ones don't seem to have this problem, this being the case, it is probably not covered by the warranty. Kind of a pain to install!!! An alternative is a brute force filter installed as close to the fuel pump as possible (and no, you cannot run the ground wire to the frame, I tried that and there was not enough juice coming through to keep the pump runnning). I think the Ford fix is simply a capacitor across the fuel pump leads. If you are into dropping the tank, you might try the same thing, although it might take some experimentation to figure the correct value. I never did fix mine, just turned the gain down and used the radio locally, not much of a fix, but ended up selling the truck shortly after anyways... |
|
