After I installed several mods along with replacing a coolant, this noise appears when I start the car. It really freaks me out. Please help me who knows what it is... Please...

http://www.youtube.com/watch?v=L6no8...ature=youtu.be

 

That kinda sounds like a squeaky belt, imo.

 

My God. What you need, sir, is an exorcist!

Rich

 

Please list exactly what mods you installed and exactly what you did with the coolant.

 

What mods did you install???

To me it sounds like air escaping. Remember when you were a kid and you would hold a candy wrapper tight and to your lips then blow and it would make that high pitch squeal? Sounds like that.

Grab each coupler tight, and shake it, rev a little and see if goes away.

My .02

 

wow, sounds like hell!

bunch of questions:
did this happen immediately after installing parts? like install part, first start?
what did you install?
does the sound go away after a warming up?
was the AC in that video?
does the noise amplify if you turn steering wheel?
can you tell if it is coming from a certain section of the engine bay?

best guess is focus on a serpentine device. a/c compressor clutch, power steering pump.
other guesses could be turbo (air) or possibly clutch too.

 

Alight.

I installed

(1) Map EF 2 turbo
(2) Map Short Exhaust Mani
(3) Map Downpipe
(4) Map intake manifold
(5) Mil.spec's Throttle Body

I drained whole coolant out and refilled it. I started the car to circulate the coolant and the noise begins.

It really freaks me out...

 

Yes, it was the very first start!!! I don't wanna drive my car until I fix this.

 

I think the sound is coming from intake manifold.

 

Wow that would have scared the crap out of me.

 

Did you replace the gaskets when installing the intake manifold and throttle body?

 

Ah... That is the problem.

I was trying to take out the old gasket, which was black, but couldn't take it out. I tried but it stuck to the engine bay so hard, so I put new one on the top of the old one. But the old one was super duper thin... It was like 0.1 mm.

And I didn't replace the throttle body gasket. Could it be possible to make the noise?


PS: Now engine check light is on... sight...

 

Yes, you are right, Kraka.

The horrible sound is coming from the place where the throttle body and the intake mani meets. So, I just ordered a gasket for the throttle body. I hope the sound goes away...

PS: Could it cause engine check light on?

 

You can not put a gasket on top of an old gasket. You need to remove both the intake manifold and throttle body, clean all remaining old gasket material off, and reassemble with new gaskets.

 

this is why you dont touch what you dont know!!! get her tuned before u start driving and get a boost leak test!