radio interference

Lethal5Oh · 03-28-2003, 01:17 PM

I have this noise that rises and falls with rpm. Doesnt change if i turn lights on or off. Im assuming its from the alternator. Any know how to stop this? Do i need a new alternator? it seems to be charging properly. thanks

Falcons Talon · 03-28-2003, 01:57 PM

Did you solder all your wire connections or twist and tape them. I had the same problem in my old '84 when I installed new speakers. After I soldered all the wiring, the hum went away.

GhettoPop · 03-28-2003, 03:20 PM

exactly what audio equiptment did u install and how did u install it? need details

66StangGuy · 03-28-2003, 03:47 PM

there is a radio interferance filter that you can get at auto zone for a few bucks and it installs between the battery + and the radio\cdplayer and filters out the sound from the alternator. some cars need it some dont. and if it dosnt fix the problem then you can always return it.

jruppert · 03-28-2003, 05:59 PM

Could be a bad ground wire on the radio.

drtbiker · 03-28-2003, 08:32 PM

Yeah sounds like a bad ground to me aswell

later

Lethal5Oh · 03-28-2003, 11:51 PM

Its an all stock mach 460 till tommorow. Im putting in a JVC. Does this alternator have a capacitor in it? i know a bad capacitor can cause it.

drtbiker · 03-29-2003, 04:45 PM

you know the funny thing is they say these alternators are garbage in the fox bodies, but i was running 4 10's plus interiors plus i was charging to batterys one in the hatch and one under the hood. I never had a problem till this day i ran 0 gauge wire through out the car aswell. But when my ground cam loose on my battery terminal then i started to have the same problem that you are talking about.

later

03-28-2003, 01:17 PM	#1
Lethal5Oh Registered Member Join Date: Jun 2002 Location: Portage Posts: 239	radio interference I have this noise that rises and falls with rpm. Doesnt change if i turn lights on or off. Im assuming its from the alternator. Any know how to stop this? Do i need a new alternator? it seems to be charging properly. thanks __________________ '95 GT convert. K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes

03-28-2003, 03:47 PM	#4
66StangGuy Registered Member Join Date: Feb 2002 Location: Diamond Bar Posts: 258	there is a radio interferance filter that you can get at auto zone for a few bucks and it installs between the battery + and the radio\cdplayer and filters out the sound from the alternator. some cars need it some dont. and if it dosnt fix the problem then you can always return it. __________________ 66 mustang-292-Holley 4160-World Castings Windsor Sr.-Hooker super comp headers-MSD box & Coil.3.55 gears. B&M Z-Gate-Black leather racing seats with 4pt harnes.

03-28-2003, 05:59 PM	#5
jruppert Registered Member Join Date: Jul 2001 Location: Reed City Mi Posts: 106	Could be a bad ground wire on the radio. __________________ '94 GT, 347 stroker, AFR 185's, Trick Flow stage 2 Cam, Edelbrock upper and lower, 70mm Tbody, 77mm MAF, 24lb injectors, 255 lph pump, underdrive pulleys, 1 5/8 Motorsport Headers, king cobra clutch, tremec tko, 3.73 gears, flowmasters

03-28-2003, 08:32 PM	#6
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	Yeah sounds like a bad ground to me aswell later __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

03-28-2003, 11:51 PM	#7
Lethal5Oh Registered Member Join Date: Jun 2002 Location: Portage Posts: 239	Its an all stock mach 460 till tommorow. Im putting in a JVC. Does this alternator have a capacitor in it? i know a bad capacitor can cause it. __________________ '95 GT convert. K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes

03-28-2003, 01:57 PM	#2
Falcons Talon T.P.M. President Join Date: May 2002 Location: Brownsville Posts: 265	Did you solder all your wire connections or twist and tape them. I had the same problem in my old '84 when I installed new speakers. After I soldered all the wiring, the hum went away.

03-28-2003, 03:20 PM	#3
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	exactly what audio equiptment did u install and how did u install it? need details

03-29-2003, 04:45 PM	#8
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	you know the funny thing is they say these alternators are garbage in the fox bodies, but i was running 4 10's plus interiors plus i was charging to batterys one in the hatch and one under the hood. I never had a problem till this day i ran 0 gauge wire through out the car aswell. But when my ground cam loose on my battery terminal then i started to have the same problem that you are talking about. later __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

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