I am having fuel pump noise in my amateur radio and want to capacitavely bypass the power leads to the fuel pump. Do anyone know where these leads are, what color they are, and how to access them?
Thanks
Bob
Yes I have one in line. I have extra grounds from tailgate to chassis, chassis direct to radio. When I turn on the ignition key, there is a short blast of radio noise, it then stops (fuel pump pressuring up) and then continues after the engine starts.
This is a 2004 WJ (I forgot to mention this in my earlier post.
Bob
Yes - directly to battery
You have the radio using the same power source as the pump, the chassis.
I would recommend dedicated fused 10 ga wires to the battery negative from the radio for it's power and ground.
If you check, you will find Chrysler even calls for a minimum of 10 ga wires both fused and both to the battery for any transmitter to avoid voiding your warranty. ( I believe Chrysler has that warranty clause, GM does 100% for sure)
GM has a TSB and a booklet on how to wire them and drawings of where to run the wires and I know Chrysler has one too, but haven read the Chrysler one, just have seen the TSB listed here:
Same for the antenna cable, make sure it is far away from any vehicle wiring and don't store any extra cable in a loop or coil.
These new vehicles are really sensitive to transmitters and RF pulses even on the power supplies because the vehicle systems operate close to the same frequency.
The Jeep auto tranny is even known to drop into neutral when the transmitter keys up if the wires are too close to the shift module.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT'sBob wrote:
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