Weird Noises on Startup

[Ben]

Hi guys

Just a quick question , and interest whether other people have this ' problem? ' .

On a cold start up, my car makes a almost BEB kind of rattle when cold. It will only last for maybe 1 or 2 seconds until the motor returns to idle position (1.5k revs until warmed up). The sound can be slightly different every time, this morning i thought i had cranked the starter motor a bit too much - you know the sound when you try and start your car when its already running .

When cold, i am able to rev the car and keep it at a steady 3/4k rpm's or drive it down the street 1st gear at this rev range and there is no weird rattle or 'bearing sound' as you could call it. I obviously don't make a habit of this, just tested it today to see if any unfamiliar sounds came from my engine.

Warm start up is fine every time.

During cold start up my oil light will flash for maybe 1 second tops while cranking also. Unsure if this is normal either as I am not as knowledge ready with Subaru's.

Anyone else have this querk? Is this normal?

Version 7 WRX, Manual, 122kms.

Thanks in advanced

[Guest]

sounds normal man

what grade oil are you using?

mines 13 00ks off rebuild and every morning when i start it up it sounds like its got a mean beb problem

i took it back to pbms and they told me if was normal and said it was just abit of piston slap when the engines cold.

havnt had 1 problm so far and still makes the same noise every morning and then goes away.

i wouldnt worry to much,mayb try a thicker oil than what your using now,im running 5w30 whch is prty dam thin.

[WRXONP]

worn bore - piston slap.... when piston swells up at temp sound goes away... a lovely subaru feature

[Ben]

Thanks guys, never heard this before from any of the subaru's I have owned. Great relief, i know exactly what a BEB sounds like .

Sti8u, I take my car to Oil Changers, who put in a 5-40 grade oil.

[Dvnt]

yep my v4 made similar noises on start up every now and then but nothing ever come of it, just keep up regular oil changers with a good oil every 5000km

[off2harrys]

My forged engine started doin that a few weeks before it died (suspected beb),i thought only stis sounded ugly from start up not wrxs because of their "forged" pistons?and even then my wisecos never sounded as ugly as a beb,but my last 1 was making that intial 1-2 sec hideous beb noise,then it would be fine,i could turn car off straight away and start it back up and it wouldnt make the noise.prob get it checked out to be safe.

[Johnnynz]

My forgies sound hideous until its run for 20 seconds or so then gets better quite quickly.

Mine have always sounded ugly since the day the engine was built. If its always been that way your probably pretty safe... If its a new sound maybe be worried.

[Ben]

I have heard it most cold mornings when i start the car. Today i started it at lunch time and was a barmy 17 degrees outside, no noise on start up. I have only done 6000kms in the car since purchase. But bought off a good friend, may ask him if he ever heard it.

[B4 2000]

hey Ben, im pretty much sure that's nothing, just cause of the cold weather. If you wanna feel better then come listen to mine when i start it up, and the colder the weather the nastier it feels haha