i was heading back to work today, car was warmed up and running fine. i hit it in 1st just enough but still keeping traction, and purposefully chirped 2nd, and, feeling quite jovial, tried to chirp 3rd, and was rewarded with a slight "scrrrr!" (chirping noise). so i felt pretty good, because the coveted "3rd gear chirp" had been attained.

anyways, after that stunt i noticed my bov sounds different. before it sounded like a whistle in 1st gear, and then just "whoooosh" in other gears. but now it sounds like a whistle AND a "whoosh" in all gears. well, 1st through 3rd anyways. I never really got on it in 4th or 5th, especially in 5pm traffic. i popped the hood and didnt see anything disconnected or broken, although i could have missed something. does this sound like something i should be nervous about? also, does compressor surge make a distinct sound? i was thinking maybe the bov got stuck somehow, and was worried about surging. but the car idles and runs fine.

 

thats the start of crankwalk yo

 

Check for boost leaks... that will change the sound of a bov as well. Compressor surge usually you hear a flutter.

 

uhoh lol. when i said "whoosh" in my first post i meant flutter. and it got louder the softer i adjusted the bov (greddy type s)

compressor surge can only happen if the bov fails correct?

 

+1 its prolly a boost leak close to the bov.

 

Does it flutter letting off before entering boost? Compressor surge will make a fluttering sound and its a different sound then the bov. I never experienced it with a DSM but I have with the SRT-4.

I'm still going for it being a boost leak.

Also if it got louder when you go softer on the bov... it may be a boost leak.

 

is the car running any different? feel slower or anything? my car did this before when the coupler came loose on the turbo inlet.

 

it seemed to run a little different, but im confident it was all in my head, and it was running normally.

anyways i just went out and looked everything over. everything looks fine, i went over almost all clamps and tightened them as tight as i could, everything seemed fine, i also took the bov off and retightened it back down. all hoses and lines look normal. the one thing i think happened was the air filter/intake pipe tweaked up a little bit, and kinked the rubber recirculation hose, and the air running through that made the sound. i dunno..

another thing, i decided for the first time to check the tightness on the valvecover bolts. i had never removed the valvecover before. anyways, all the bolts were just a little more than snug, and 2 or 3 bolts were just free spinning. i feel like im drive a ticking time bomb. gotta get that new head from drew asap...

 

valve cover bolts only need to be about 3 ft lbs so its not really a problem. i know some people who just barely get them tight with a 1/4 inch drive and its fine.

 

seriously? hmm.. well these were like, i put the wrench on them and the weight of my hand turned them. i tightened them with a ratchet and socket, but i knew they have to be torqued to spec, so i didnt crank on them or anything. does arp make valve cover bolts? or would that require a helicoil?