S
sirchaz
UPDATE EMAIL ADDRESS
Just got the T-Bird back from the Dealer Service Department. They replaced the radio. Was getting a lot static and bleed on AM. They put in the new radio the same problem was there. Service manager told me they contacted Ford Motor Company Engineers and were informed that FORD was aware of the problem that
it is caused by the wire harness and they are trying to come up with a fix but do not have one as yet. Then I just got this message from a friend of a FMC Engineer.
The only concern that I am aware of is noise on AM. I will describe the history as I know it. The noise
in AM has been described as a ticking or chirping, and the NOVA auditor described it as a ticker tape machine. The source of the noise is the SCP wires (to REM and RKE) that route across the car on the top of the cowl,
just below the top IP surface. Due to the location of the antenna, on the windshield, the noise radiating from the SCP wires is picked up by the
antenna and results in noise in AM.
This was found at FEU-2 by the NOVA Auditor. Cars were tested in the EMC lab and the resulting fix was to shield the SCP wires that cross the car along
the top of the cowl. The fix was implemented in two phases. The first phase was for the existing 14A005 wire harnesses were modified to add an overlay
harness that contained the shielded SCP wires. The second phase was incorporation of the shield in production harnesses. My understanding was
that there were about 1000 14A005s that were reworked. The first phase was implemented on the Constrained Build, after the first 13 CB cars had been
built. I was contacted by our resident at Wixom about a early complaint about AM noise that came in through the FCSD Hotline. I worked with the dealer and we
couldn't find anything wrong with the car (missed ground, pinched wire, bad coax, etc.). I revisited the SCP noise that was found at FEU-2 The original recommendation was to change the wire routing, but as
this was common with the LS he had to accept the next best thing which was to add the shielding to the SCP wires. I further reviewed the wire routing
in the car and developed a reroute, that could be a potential service fix,
to reroute the SCP wires down the left side of the car and then across to the REM and RKE. This reroute keeps the SCP wires from crossing the car under the antenna, keeping the source of the noise away from the antenna. I got an overlay harness used to rework the 14A005s from Siemens and installed it in a Wixom PVT car using the revised routing. We tested it in
the EMC lab and proved that it is effective.
sirchaz
it is caused by the wire harness and they are trying to come up with a fix but do not have one as yet. Then I just got this message from a friend of a FMC Engineer.
The only concern that I am aware of is noise on AM. I will describe the history as I know it. The noise
in AM has been described as a ticking or chirping, and the NOVA auditor described it as a ticker tape machine. The source of the noise is the SCP wires (to REM and RKE) that route across the car on the top of the cowl,
just below the top IP surface. Due to the location of the antenna, on the windshield, the noise radiating from the SCP wires is picked up by the
antenna and results in noise in AM.
This was found at FEU-2 by the NOVA Auditor. Cars were tested in the EMC lab and the resulting fix was to shield the SCP wires that cross the car along
the top of the cowl. The fix was implemented in two phases. The first phase was for the existing 14A005 wire harnesses were modified to add an overlay
harness that contained the shielded SCP wires. The second phase was incorporation of the shield in production harnesses. My understanding was
that there were about 1000 14A005s that were reworked. The first phase was implemented on the Constrained Build, after the first 13 CB cars had been
built. I was contacted by our resident at Wixom about a early complaint about AM noise that came in through the FCSD Hotline. I worked with the dealer and we
couldn't find anything wrong with the car (missed ground, pinched wire, bad coax, etc.). I revisited the SCP noise that was found at FEU-2 The original recommendation was to change the wire routing, but as
this was common with the LS he had to accept the next best thing which was to add the shielding to the SCP wires. I further reviewed the wire routing
in the car and developed a reroute, that could be a potential service fix,
to reroute the SCP wires down the left side of the car and then across to the REM and RKE. This reroute keeps the SCP wires from crossing the car under the antenna, keeping the source of the noise away from the antenna. I got an overlay harness used to rework the 14A005s from Siemens and installed it in a Wixom PVT car using the revised routing. We tested it in
the EMC lab and proved that it is effective.
sirchaz
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