Shooter_Jay

Oh no! About thirty seconds after start-up, going down my driveway and suddenly it starts whining/whistling! Sounds like from the engine, but also got loud when I walked around behind the exhaust! I sounds like a constant sound so I'm thinking spun bearing??? I would be hoping and thinking maybe it's just a pulley bearing, but getting loud from the exhaust tips makes me think internal. Any help and/or suggestions greatly appreciated!!! Anybody know around how much for a crate motor or short-block?

Shooter_Jay

what? Ok, I went out to put it in the garage, and now it seems back to normal. Drove it for a few short trips, seems fine. Very strange...

orangeapeel

iTrader: (18)

Already pricing motors? lol! It could be a hole in your manifold for all you know.
You might have a broken hanger that is squeking and resonating in the pipes.

Shooter_Jay

it was a very constant and very loud sound. I was hoping it was a pulley or something until I heard it through the exhaust pipes. At the time I shut it off then started it back up and it still did it, so I shut it off again. Fifteen minutes later I starteed it and it was back to normal. I've been trying to figure out what it could have been to hear it through the exhaust like that but still go back to normal.

72ChevelleConv.LS1

iTrader: (5)

I had a sound that sounded like a banchi howling. it sounded like passinger side. I was relly worried and it was their for a few sec. then gone as fast as it came. then it just wouldn't stop. it took some serching but it turned out to be the starter the small gear was getting stuck in the outward position and the motor was turning it after starting. check that.

DaddySS

OK, let's start with a spun bearing will never sound like whining, whirring, etc. Pulleys, torque converter flex plate, throw out bearing, PS pump, alternator bearing, starter (as mentioned above), etc. will do that but not the internals. Next time you hear it, take the time to locate the source and take it from there.

Shooter_Jay

I've had all types of bearings in all types of toys go bad, and this sounded like some kind of bearing gone bad or something wedged in a rotating part causing a constant moan/whine. As for the starter, maybe not because the noise started about thirty seconds AFTER it was started. Unless of course an electronic fault caused the starter to re-engage. Actually my starter relay does act up once in a while, I wonder...
Locating the source was second on my list. The hood was open. I came in to post the message then go back out and find the source, when the sound was gone.
Damn this car is fun to drive, I hope the noise never re-appears

1BADAIR

iTrader: (1)

Mine would make a horrible noise coming from the exhaust when the car was cold and the AIR pump was running

DaddySS

OK understand why you would think that, but bearings in an internal combustion engine are very different from other types - when they go bad you hear a knock, thump, etc.

The air pump mentioned above is another good area to check, fits with your description of noise out the tailpipe and it only runs for a minute or so when the engine is cold.

orangeapeel

iTrader: (18)

Pull the fuse for your air pump and see if you still get that noise. Allthough you are gonna have a new light appear on your dash!

Wnts2Go10O

iTrader: (12)

got one better, i took the tubes off the ss when i did the headers, now it sounds like it has a electric supersharger at start up. i jus nee to unplug it but im kinda lazy

MAXIMO

iTrader: (14)

Just because anything is a posibility. I have heard of these whistles that people put on peoples exhaust. I saw a news report on this. Some people actually like this noise here is the site check your exhaust for this just in case. here is the link

http://www.zymetrical.com/product.asp?3=15&dc=331x83ex

and this is the new report

http://video.search.yahoo.com/search...&cop=&ei=UTF-8