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[Bill UK]

Correction! the pipe in your top photo has the same metal pipe as the one on the right in the drawing. Toyota identify them “Vacuum Switching Assy” They have different part numbers, the difference may only be the shape of the bracket though.

[suprakid91]

i am awaiting a dead battery to charge. after 4 months of sitting it was completely dead. it starts to like hiccup ever now and then and when it does turn over though, its really odd. sometimes it almost screeches and sounds like air is coming out of somewhere after that. im really confused and frustrated. ill keep you guys posted on how it goes after i get the battery charged and hopefully running.

[suprakid91]

ok so it started to run and it still makes a really annoying noise thats like a high whistle/ screeching when the engine is running. it also runs really rough and doesn't idle on its own. i have to keep it going. when it stops it sounds like a dieing bird. i am going to try to link a video of it as soon as possible on youtube.

[suprakid91]

http://www.youtube.com/watch?v=dJt-XVhofCA

please if anyone can give anything on what it might be or where it might be coming from. i would thank you.

[suprakid91]

nobody has any idea? the video quality is really bad and you cant really hear anything cuz its off my phone but i really neeed to know what it is. it sounds like a whistling tea pot. or something like that coming from the front fuel pressure regulator or the alternator?

[Grandavi]

Couldn't hear it, but would guess its either coming from a perforated hose or bad gasket. I dont know of an easy way to find it either, other than looking carefully at the whole system in that general area. (unless someone has a simple technique... I solve this by pulling off hoses and taking a close look at what they are attached to. It can be a long process.)

Never heard anyone suggest this, but try soapy water, wipe the hoses you suspect making sure they are wet. Then see if you can see any bubbles. (you will need to do it on a cooler engine if your going to try it on the block itself).

This is a hard one to do from a 1000 km away... all we can do is guess with the information at hand. (of course.. Im not a mechanic, just suggesting things)

[suprakid91]

thanks grandavi. i am also going to try using smoke to see if i can locate anything. my grandpa actually suggested it cause thats what he did back in the day when he rebuilt engines to find leaks and stuff.

[Grandavi]

I think you need to take the fan off to use smoke.. unless your talking whacky tabacky...

[suprakid91]

haha no. no wacky tabacky for me... gotta get another job. i am going to use smoke form cardboard or a cigarette. but i don't wanna wast mine. ha. i still dont know where its coming from though. its really odd. i have never heard anything like it on any engine.

[Grandavi]

When I rebuilt the engine in a 1972 Corolla (my first car) I did an excellent job except for one thing. If you have ever rebuilt a motor and replaced the bearings, you will know what Im talking about...
I overbored the motor (being 16 I though.. more CC.. more power) and pretty well replaced everything inside the motor (except the valves, I just reground them) Slapped it all together and took it out.
Being 16... again... what's the first thing a guy would do? Race the car! Got it up to 92 MPH and started to hear a very loud knock. Took it in to a mechanic and he said... oil pump shot. So, I pulled the engine (loved that Corolla everything was small) and flipped it over. Oil pump was fine.

The one thing I did wrong (other than being 16 and racing a freshly rebuilt engine) was I put the thrust bearings in backwards. Easy mistake to make if its your first engine... but had to say goodbye to the engine because that little mistake destroyed the crank and the block... lol. Live and learn.

So, I'm wondering, maybe that squeal isn't a leak. (just a thought)

Oh yeah.. when I was 22, UPS showed up with my brain... (about time!!!).