odin836

I have a ticking noise in my car audio system that wont seem to go away.

It is a ticking noise that only ocurs when the car is started and running.

I've tried to solve it by getting a 40amp car nois isolator and connecting it directly to the battery as shown in the instructions and then running the output +12V to my amplifier, this did not solve the problem.

I then discovered that it sounded like the electric fuel pump ticking away, so I purchased another noise isolator and attached it first to the head unit connections, then seperatly to the fuel pump. This eliminated the fuel pump ticking noise when the car is not running (but the fuel pump is runnig) but not the ticking noise when the engine is running.

My +12V runns down one side of the car to the amp and the RCA cables on the other side of the car, many have suggested this might be the cause, but it can't be as it's arranged correctly.

Has anyone encountered these sorts of problem, and if so how do you solve it.

My car is old but no reason why I shouldn't be able to isolate the noise.

Thanks again

Odin

MP3Car.com

 

Aaron Cake

How old are your spark plug wires?

Fuel pumps shouldn't "tick". If it does, then it sounds like you'll be needing a new pump pretty soon.

__________________
Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
"If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

magnetik

ahh, not entirely true... I have worked on a few older cars (late 70's, early 80's - one was a mates Mazda funny enuff!) that did have an audible 'tick' in the fuel pump.... its bloddy anoyying if u ask me tho...

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Project - GAME OVER :(

odin836

You say you have worked on a friends car before, how did you solve the problem of the ticking???

Thanks

Odin

Aaron Cake

Sorry, should have been more clear. Modern fuel injection style pump shouldn't tick. Low pressure carb pumps may often make a ticking sound.

__________________
Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
"If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

magnetik

sorry... i meant as in oil changes/etc/tuning.... not fixing fuel pumps.... my point was they do 'tick' and like aaron said, more previlent on older carb engines..

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Project - GAME OVER :(

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