fatkat4

When i first start my engine it makes a chirping sound , it sounds almost like metal on metal , it dosent sound like a belt at all and it will chirp anytime the engine is reved .till its warmed up .any ideas on what it is ?
thanks in advance for all your help you guys on this forum are awesome

Old Rotor

Please give us the history on your car. The service it's had and parts replaced. Type of driving it gets(long commutes, short trip), fuel used(reg or prem), ever flooded, mods installed. Have you ever run any engine de-carbon cleaner to improve compression? You might need this to clean up the carbon buildup from a lot of short drives and not much red lines. Just any thing that you can add.

ZumnRx8

wow this is a new one.... can u post a video? where exactly is the noise coming from ? can u pinpoint the area?

RotorWheeee

Are you sure it's coming from the engine? I recently came across a sound that can only be described as a chirp. For two weeks I tried to track it down. I did locate it but not where I thought .
Check the metal cap on the top of the shifter. Mine was barely loose and it chirped loudly with a metal on metal sound and it only moving about 1/16 of an inch side to side. If this is the case, lightly pry up the black gear indicator at the top of the shifter to uncover a screw, just tighten. If your is an Automatic, sorry this wont be of any help to you.

xun4gvn4everx

iTrader: (2)

Haven't heard this one before Give us some more info on the car dude like Old Rotor asked

nycgps

iTrader: (1)

was it some high pitch sound that turns off after maybe a minute or 2 ?

or was it sound like something is flowing ?

or are you talking about that "clicking" sound when you turn your car to ON but engine not starting.

Mawnee

Mine has started doing this as well. Only seems to do it in the first couple of seconds after startup though. Sounds a little too solid to be a belt, I was thinking it was the Ac compressor or some such.

slidey

I'm another who has the chirp, always when cold and if you touch the throttle it'll chirp, i've checked all the belts and found nothing, funny thing is it's only started doing this since the last visit to the dealers, they did'nt do much except check my work over and flash the ecu.
Once warm it does'nt chirp, a few other owners in the uk also have the same thing going on.My car is standard except for the magnacore kv85 ht leads and has 20000 miles on the clock. As far as i can tell it's coming from the engine.

Dave

fatkat4

i will try to record it as soon as possible as then post so you all can hear it

lycanthrope

i just posted about this on another thread about rattles and humms(should have searched i know). i think I'm getting the same thing but mine happens after the car is warmed up and the idle starts to settle down. i dont think its a belt but thats the closest think i can think of to describe how it sounds. i was thinking it could maybe be a loose engine mount or something where metal shouldn't normally be touching metal. also this seems to get worse when its cold.

Darkpoison187

iTrader: (1)

Damn quite a few ppl have a chirp coming from their car. I have the same thing I know its not the belts 100% on that It maybe metal or the fact that I have to buy a new driverside splash guard and fender liner but the chirp started today Mine is a bit different from what I see on here my car chirps on take off fro 20 - 50 mph if I let off the gas it stops

maskedferret

iTrader: (1)

*chirp chirp chirp* as you're on the throttle whilst letting out the clutch and then some on a fresh start? That's kinda me, if any of that makes sense. Consider me in on this thread.

Johnboy

iTrader: (2)

Same little chirp here but only on a cold start up just as the engine fires. It's been doing it for a few years now......

Had it in to dealer a few years ago for some other issue and told them but they could not find cause of chirp or repeat it.

MazdaManiac

iTrader: (3)

Here are the various "chirps"

1) Clutch disengagement slave cylinder pivot - A quiet "ee-ee-ee-ee" when your foot is off the clutch pedal at idle.
2) A/C belt idler bearing - A not so quiet "chee-chee-chee" tied to engine RPM. Tends to get slightly worse as the motor warms up.
3) Low load detonation - a single, metallic "scrape" as you lightly accelerate off of idle or start the engine (especially when cold). This is a form of detonation caused by the sudden change in ignition timing on the trailing plugs.

Darkpoison187

iTrader: (1)

The third one kind of sounds like my issue but my chirp isn't upon start up I hear it when the cars warm an between 15-45 mph if i ley off the accelerator it stops. would I still fall into that third catagory? I plan on checking my plugs,coils,and wires when I get home in the other thread Weird engine noise or sound someone said to do a compression test would that be something to look into?


Best info I've gotten all week on this thanx

MazdaManiac

iTrader: (3)

No. That is something different.

epikeddie

Is the third one detrimental to the health of the engine?

I have the exact sound and action that you're describing.

MazdaManiac

iTrader: (3)

I sure hope not since EVERY RX-8 I've every seen does it.

I think its pretty innocuous.

Darkpoison187

iTrader: (1)

Alright then Mazdamaniac I have one more question someone said I should go gey my compression checked is that something I should look into?

Nubo

I've had the occasional "startup chirp" ever since the last time I got flashed; probably a couple of years now. I thought maybe it had something to do with the OMP, but MM's explanationi makes sense. Now I can worry about it even less than I already was

vipertek602

I am also interested in this. Except mine does this all the time and the noise gets faster as my speed increases.

I have an 05 AT and the dealer have told me I have low compression due to failing oil metering pump.