In article ,
wrote:

Get ready to remove the tank,pump is inside..run the
pump power through a pair of coax caps (about .1 to .25 OK ) mount them
directly at the pump terminals on the tank..that will get about 90% of
the noise..ground the tail pipe at the back bumper ,good braid ground.
None of the Ford dealers that I contacted wanted to talk about the
problem,never heard of it .. Good luck W4PQW

Tell the dealer to look up Ford's technical service bulletin
TSB 93-15-6 and/or TSB 95-11-3 (I believe the latter is an updated
version of the former). This describes the problem, identifies the
Ford filter part which is to be installed inside the fuel tank on the
pump wiring, and describes the procedure.

This is reportedly _not_ a customer-installable fix. As it involves
removing the fuel pump from the tank itself, and modifying wiring in
this area, I'm not too surprised that Ford would be very reluctant to
encourage vehicle owners to attempt this on their own.


--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

On 13 Jan 2004 16:07:15 -0800, wrote:

(Randy Chavis) wrote in message ...

Anybody have any ideas to lower noise in my FT-857 mounted in my F-150
pickup? S7-S9 noise (engine running, with NB ON) on 17M (Only band I've
tried on HF yet). Antenna is an Outbacker mounted on a mount I welded up
for my receiver hitch and puts the base of the antenna at about roof level.
Quiet as a mouse when truck is shut off. Go figure...hard to be "mobile"
with the engine off

--
Scott N0EDV
Gotta Fly or Gonna Die
http://corbenflyer.tripod.com
Building RV-4

you will find the problem in the fuel pump..Ford had a big porblem with it not
being grounded.They have a fix for it but you will have to talk to a Ford tech
to find it and buy it from them....

Randy




ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172 Get ready to remove the tank,pump is inside..run the pump power through a pair of coax caps (about .1 to .25 OK ) mount them directly at the pump terminals on the tank..that will get about 90% of the noise..ground the tail pipe at the back bumper ,good braid ground. None of the Ford dealers that I contacted wanted to talk about the problem,never heard of it .. Good luck W4PQW

Randy,

Ford has had a service bulletin out for several models about the fuel
pump noise. http://www.arrl.org/tis/info/pdf/W1MG.pdf have a look at
the url, it tells about your fuel pump noise even gives diagrams and
suggested time to install the filter for a qualfied mechanic.
I found out about it when my 1996 Ford Ranger was still under
original factory warranty. The ford dealer added a fuel pump
electrical filter to the fuel pump in the fuel tank. Can't say it did
a whole lot of good though, but is better than it was before they
added the filter.

Who makes the coaxial caps you used ?


Gary K8IZ
Washington State Resident
Registered Linux User # 312991

On 13 Jan 2004 16:07:15 -0800, wrote:

(Randy Chavis) wrote in message ...

Anybody have any ideas to lower noise in my FT-857 mounted in my F-150
pickup? S7-S9 noise (engine running, with NB ON) on 17M (Only band I've
tried on HF yet). Antenna is an Outbacker mounted on a mount I welded up
for my receiver hitch and puts the base of the antenna at about roof level.
Quiet as a mouse when truck is shut off. Go figure...hard to be "mobile"
with the engine off

--
Scott N0EDV
Gotta Fly or Gonna Die
http://corbenflyer.tripod.com
Building RV-4

you will find the problem in the fuel pump..Ford had a big porblem with it not
being grounded.They have a fix for it but you will have to talk to a Ford tech
to find it and buy it from them....

Randy




ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172 Get ready to remove the tank,pump is inside..run the pump power through a pair of coax caps (about .1 to .25 OK ) mount them directly at the pump terminals on the tank..that will get about 90% of the noise..ground the tail pipe at the back bumper ,good braid ground. None of the Ford dealers that I contacted wanted to talk about the problem,never heard of it .. Good luck W4PQW

Randy,

Ford has had a service bulletin out for several models about the fuel
pump noise. http://www.arrl.org/tis/info/pdf/W1MG.pdf have a look at
the url, it tells about your fuel pump noise even gives diagrams and
suggested time to install the filter for a qualfied mechanic.
I found out about it when my 1996 Ford Ranger was still under
original factory warranty. The ford dealer added a fuel pump
electrical filter to the fuel pump in the fuel tank. Can't say it did
a whole lot of good though, but is better than it was before they
added the filter.

Who makes the coaxial caps you used ?


Gary K8IZ
Washington State Resident
Registered Linux User # 312991

Do you know if Ford has addressed this in newer trucks... or is it STILL
a problem?

Randy Chavis wrote:
(Randy Chavis) wrote in message
...

Anybody have any ideas to lower noise in my FT-857 mounted in my F-150
pickup? S7-S9 noise (engine running, with NB ON) on 17M (Only band I've
tried on HF yet). Antenna is an Outbacker mounted on a mount I welded up
for my receiver hitch and puts the base of the antenna at about roof

level.

Quiet as a mouse when truck is shut off. Go figure...hard to be "mobile"
with the engine off

--
Scott N0EDV
Gotta Fly or Gonna Die
http://corbenflyer.tripod.com
Building RV-4


you will find the problem in the fuel pump..Ford had a big porblem with it

not

being grounded.They have a fix for it but you will have to talk to a Ford

tech

to find it and buy it from them....

Randy




ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172 Get ready to remove the tank,pump is inside..run the pump

power through a pair of coax caps (about .1 to .25 OK ) mount them directly
at the pump terminals on the tank..that will get about 90% of the
noise..ground the tail pipe at the back bumper ,good braid ground. None of
the Ford dealers that I contacted wanted to talk about the problem,never
heard of it .. Good luck W4PQW



Well, I guess it is who you know..all the ones that I know that have been fixed
here have bought thier cars or trucks new and Ford was glad to help them. They
also knew ahead of time that the buyes were hams and planed on installing
radios in the cars or trucks.....

Randy


ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172

Do you know if Ford has addressed this in newer trucks... or is it STILL
a problem?

Randy Chavis wrote:
(Randy Chavis) wrote in message
...

Anybody have any ideas to lower noise in my FT-857 mounted in my F-150
pickup? S7-S9 noise (engine running, with NB ON) on 17M (Only band I've
tried on HF yet). Antenna is an Outbacker mounted on a mount I welded up
for my receiver hitch and puts the base of the antenna at about roof

level.

Quiet as a mouse when truck is shut off. Go figure...hard to be "mobile"
with the engine off

--
Scott N0EDV
Gotta Fly or Gonna Die
http://corbenflyer.tripod.com
Building RV-4


you will find the problem in the fuel pump..Ford had a big porblem with it

not

being grounded.They have a fix for it but you will have to talk to a Ford

tech

to find it and buy it from them....

Randy




ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172 Get ready to remove the tank,pump is inside..run the pump

power through a pair of coax caps (about .1 to .25 OK ) mount them directly
at the pump terminals on the tank..that will get about 90% of the
noise..ground the tail pipe at the back bumper ,good braid ground. None of
the Ford dealers that I contacted wanted to talk about the problem,never
heard of it .. Good luck W4PQW



Well, I guess it is who you know..all the ones that I know that have been fixed
here have bought thier cars or trucks new and Ford was glad to help them. They
also knew ahead of time that the buyes were hams and planed on installing
radios in the cars or trucks.....

Randy


ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172

Scott wrote:

Anybody have any ideas to lower noise in my FT-857 mounted in my F-150
pickup? S7-S9 noise (engine running, with NB ON) on 17M (Only band I've
tried on HF yet). Antenna is an Outbacker mounted on a mount I welded up
for my receiver hitch and puts the base of the antenna at about roof level.
Quiet as a mouse when truck is shut off. Go figure...hard to be "mobile"
with the engine off

--
Scott N0EDV
Gotta Fly or Gonna Die
http://corbenflyer.tripod.com
Building RV-4

Excellent answers from others. I'll add that I faced and
fixed fuel pump the problem on my '91 Marquis - but that
was on 2 meters. Dunno if my fix would have prevented
the noise on HF as I didn't run HF mobile.

Anyway, I installed a BIG (physically) feed through
cap in the trunk in the + line to the pump. I also
installed a couple of .1 uf (as I recall they were
..1) caps - one across the power leads at the rig,
and one in the blower circuit. I was getting noise
from that too. That one was easy to isolate, as the
noise was there with the engine off and the vent/AC/heater
blower on.

My experience is not representative, and it was to
solve hash on my 2m/440 rig. A cap *in* the tank
should be more effective, in my view. But I figure
the more you know about these *()$%# noise problems,
the better off you are.

On Fri, 16 Jan 2004 17:38:45 GMT, wrote:



Scott wrote:

Anybody have any ideas to lower noise in my FT-857 mounted in my F-150
pickup? S7-S9 noise (engine running, with NB ON) on 17M (Only band I've
tried on HF yet). Antenna is an Outbacker mounted on a mount I welded up
for my receiver hitch and puts the base of the antenna at about roof level.
Quiet as a mouse when truck is shut off. Go figure...hard to be "mobile"
with the engine off

--
Scott N0EDV
Gotta Fly or Gonna Die
http://corbenflyer.tripod.com
Building RV-4

Excellent answers from others. I'll add that I faced and
fixed fuel pump the problem on my '91 Marquis - but that
was on 2 meters. Dunno if my fix would have prevented
the noise on HF as I didn't run HF mobile.

Anyway, I installed a BIG (physically) feed through
cap in the trunk in the + line to the pump. I also
installed a couple of .1 uf (as I recall they were
.1) caps - one across the power leads at the rig,
and one in the blower circuit. I was getting noise
from that too. That one was easy to isolate, as the
noise was there with the engine off and the vent/AC/heater
blower on.

My experience is not representative, and it was to
solve hash on my 2m/440 rig. A cap *in* the tank
should be more effective, in my view. But I figure
the more you know about these *()$%# noise problems,
the better off you are.


Ford has had a service bulletin out for years on several models about
the fuel pump noise. http://www.arrl.org/tis/info/pdf/W1MG.pdf have a
look at the url, it tells about your fuel pump noise even gives
diagrams and suggested time to install the filter for a qualfied
mechanic.
I found out about it when my 1996 Ford Ranger was still under
original factory warranty. The ford dealer added a fuel pump
electrical filter to the fuel pump in the fuel tank. Can't say it did
a whole lot of good though, but is better than it was before they
added the filter.

Gary K8IZ
Washington State Resident
Registered Linux User # 312991

Update!

After reading the Ford Service Bulletin, I checked to see if it could be the
fuel pump. They said to have radio on and then turn key to on position.
The fuel pump runs for about 1 second and then stops. If the noise appears
for 1 second and disappears, the pump is most likely the source of noise. I
did not get any noise until the engine was started. Therefore, it would
appear it is something else such as injectors, alternator, etc.

Dang! So much for any easy discovery and possible fix. Still searching...

Scott
N0EDV

"Scott" wrote in message
...
Anybody have any ideas to lower noise in my FT-857 mounted in my F-150
pickup? S7-S9 noise (engine running, with NB ON) on 17M (Only band I've
tried on HF yet). Antenna is an Outbacker mounted on a mount I welded up
for my receiver hitch and puts the base of the antenna at about roof
level.
Quiet as a mouse when truck is shut off. Go figure...hard to be "mobile"
with the engine off

--
Scott N0EDV
Gotta Fly or Gonna Die
http://corbenflyer.tripod.com
Building RV-4

the fuel pump will run for a few seconds when you turn the key on and then stop
because it builds up pressure in the line. when you turn the engine over the
pump will start up again to keep the pressure up for all the injectors.it will
never stop till you shut the car off . it has a return presure valve in the
line to return fuel to the tank...bet it is the pump giving you the noise..

randy

ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172

Well, the truck is going in to Ford this coming week. Needs the CD player
replaced and they will install the filter in the fuel tank at no charge, so
I might as well have it done. Is anybody aware of any other tech service
bulletins for noise? My Ford dealer says if there is a TSB, they will do it
as warranty work at no charge. Sure would like to load up on all the RFI
bulletins while it's still in warranty!

Scott

"Randy Chavis" wrote in message
...
the fuel pump will run for a few seconds when you turn the key on and then
stop
because it builds up pressure in the line. when you turn the engine over
the
pump will start up again to keep the pressure up for all the injectors.it
will
never stop till you shut the car off . it has a return presure valve in
the
line to return fuel to the tank...bet it is the pump giving you the
noise..

randy

ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172