View Full Version : engine noise through speakers


speedfreak1000
05-06-2012, 08:15:33 AM
car has been fine for 2 years. i had ran power wires down one side, speaker wires down the other.

the only thing i changed was put a new edelbrock carb on. i hooked the electric choke to the alternator just like the previous owner had the holley. ever since i did this i know have a pulsing tick coming through the speakers. any suggestions?

David

73Camaro383
05-06-2012, 08:26:09 AM
I wouldnt hook the choke to the alt. Hook it up to a fused wire under the dash or a different fused wire. It could be backfeeding through the alt and introducing the noise.

speedfreak1000
05-06-2012, 08:30:28 AM
thats what i was wondering if it could do that. it was just odd it was never an issue till i put on the edelbrock. i'll change that today and see if it helps.

thanks

73Camaro383
05-06-2012, 09:12:54 AM
Cant hurt. That way you can rule it out. then move on from there.

speedfreak1000
05-07-2012, 05:53:19 AM
i routed the eletric choke to inside the car to the fuse box. the ticking through the speakers got alittle better but its still there. anyone have an opinion on what i could look for or do next?

77RS
05-07-2012, 05:58:47 AM
The tach filter is an RFI filter. Chck to see if it still has a good connection to ground. It may have been disturbed when mounting the new carb.

ozchevy
05-07-2012, 07:03:43 AM
i routed the eletric choke to inside the car to the fuse box. the ticking through the speakers got alittle better but its still there. anyone have an opinion on what i could look for or do next?


Just wire in a noise suppressor to the Alternator it's like $5.00 from Radio Shack, and gets rid of all RF interferences.

73Camaro383
05-07-2012, 07:09:50 AM
The tach filter is an RFI filter. Chck to see if it still has a good connection to ground. It may have been disturbed when mounting the new carb.

+1 on the tach filter. I dont have one and I dont have any noise. But stereos are all different. Make sure you check all your grounds that you can to the stereo and under the hood...

speedfreak1000
05-07-2012, 07:02:45 PM
i'll have to check but i dont think mine even has a filter on the tach wire. i'll have to try to find one.

went to radio shacks website and didnt find what i think i was looking for.

would it be about the same kind of filter that is on the blower motor wiring?

73Camaro383
05-08-2012, 06:54:36 AM
77RS will be the guy to talk to about that, since I dont have one. PM him.

Aceshigh
05-08-2012, 06:58:25 AM
i'll have to check but i dont think mine even has a filter on the tach wire. i'll have to try to find one.

Best Buy's car stereo install dept should have what you're seeking.

speedfreak1000
05-08-2012, 07:09:36 PM
Best Buy's car stereo install dept should have what you're seeking.

didnt even think about them and there is one right down the road from work.