As the title mentions my Fuel injectors have been louder then normal the past little while and my fuel pump has a high pitched whine when the car is running. Is this normal or should I start looking into replacements?

 

Have you ever changed the fuel filter? It might be so clogged that it's having a hard time forcing the fuel through.

 

Hard to guess about your fuel injectors but the pump shouldn't be making abnormal noises. Is your car throwing any codes or running abnormally besides the noise?

 

I've never changed the filter But it's running good so far other then the noise but the injectors get loud as hell at higher Rpms

 

Inside you can faintly hear them but only within 300ish rpm of redline. When i turn it on i get the usual hum along with the whine but they both stop after a couple seconds then when I start it the whine returns, I really don't know much of the cars history but it had an aftermarket stereo and was rewired but sold with stock components and my mechanic mentioned after swapping out the engine after the rings let go that I'm getting higher then normal fuel pressure. could there be more done to it then i'm thinking? All i know in that aspect is after passing the previous owners house twice they seem to have a not very stock chevy cruze... Also if you shift it into Incline or low gear and let the revs drop with the speed of the car it'll pop a bit out the exhaust

 

In my personal experience detonation sound is most closely described as the sound of the ball when shaking a paint can.

 

No it sounds more like a soft clicking at redline. Runs just fine.

 

I'll have to do that next time i get the chance

 

The engine has 135'000 kms on it and is stock other then a k&n typhoon intake. It came out of a rolled over 2005 chevy malibu

 

You can hear the click under the hood at idle but if you put a screwdriver on the fuel rail and each injector thats where the click is coming from other then that i really don't know

 

I tried uploading a vid but the site doesn't like mp4 vids

 

When I changed the thermostat recently i cleaned the injectors aswell and they're much quieter now. Is there a recommended milage to clean them at or just when they get noisy?