fuel pump making loud ticking noise

[TTDRIVER]

Is this normal or do I need a new pump? The pump makes a pretty loud ticking noise while the car is running. Sound comes into the cabin area and is continuos. Can any one help?

[Inf]

Is it a mechanical fuel pump or electric? That might help someone that knows better than I give you some advice.

I don't want to derail this thread, but while we're on the topic : my mechanical fuel pump makes a ticking noise also, but I cannot notice it when it is running. It ticks for a good bit after shutting it down after warming up on a good 30 minute drive. Should I be concerned about this or is this normal?

[TTDRIVER]

its a 73 240z i believe its electrical

[thefastestz]

i thought the 73 had both well both of mine did anyway.

[TTDRIVER]

the noise im talking about is coming from the pump located by the gas tank. when the car is on it just ticks untill i turn it off

[Mr Camouflage]

I was playing with my 260z trying to get the engine running to asses its condition (its a parts car). Anyway the float overflow was jammed and it was pumping fuel out all over the place.

I had disconnected the pump a while ago. So i had to reconnect it to try and get it running only i had plugged the wrong leads in and got the same noise you are describing (loud rapid ticking noise).

Theres the fuel pump, and some other thing also there, that appears not to have been connected. I cant find leads for it to plug into, once the fuel pump is plugged in.

Checking the haynes manual I think it might be controll relays to turn the pump off when the engine is cranking. Maybe thats what causing the noise.

Never did get the engine started.

[TTDRIVER]

thanks for the help ill check it out.

[240ZMan]

I too have a 73 with both electric and mechanical pumps. My electric makes a very loud (at idle) ticking noise. Since I also have the mechanical, I put a switch in and leave the electric off all the time now. Haven't needed to turn it on yet.

Oh, and to Inf's comment about the mechanical pump ticking after shutting down the engine when warm, mine does that as well. It's most noticeable for me when the day is warm, or hot even. Now that the weather has cooled (I'm in Colorado) I don't notice it much. I've opened the pump up looking for some problem, but it's clean as can be and I can't see anything that would cause it. I figure I'll wait until the spring and warm temperature to deal with it.

[tanny]

Definitely the electric fuel pump. I installed a Ford fuel shutoff switch(automatic kind that cuts power when car decellerates too quickly) in the fuel pump circuit in case I get into a crash. Don't want to keep feeding the flames if I survive the crash. Paranoia strikes deep. Victor.