DimaK

i have an 86 gxl and ive been driving it lately, and whenever i go really fast or just floor it i hear whistling sounds from the engine, i know that turbo makes a whistling sound...but i dont have turbo, i was wondering if it could be something stuck in the air intake or sumtin or i dont know,, its weird

TrboSpdAnt

iTrader: (5)

Does it do it WHILE your foot's in it?

Sounds like a vac leak - or an intake piping leak. I also have an 86 GXL, and a similar whistle... Only difference is that mine comes AFTER my foot's in it, once it comes OFF.

Kinda oflike the manifold purging air pressure (read: BOV).

As far as that goes. I dunno.... I'll watch the thread, an hopefully learn somethin' too!

DimaK

yeah, it only does it when i press on the gas

Tournapart

iTrader: (4)

your low on blinker fluid

Mint87RX7

my exhaust leak whistles

jono20

mod a header so it goes out through your hood. that way you can guaruntee its not an exhaust leak. and it will look super neato

TrboSpdAnt

iTrader: (5)

Make sure your intake hose is intact.

Here's what ya do:

Go to some parts store (Or Walmart, if you're like me and work on **** at 2am), and get STARTING FLUID. NOT CARB CLEANER Cleaner will bog your engine (trust me, I tried it), Starting fluid willmake the engine rev if it's intro'd to the intake, or pulled into the engine via vacuum leak.

Start the car, and spray the STARTING FLUID around your intake hose, and airbox. If it's gotta leak, the engine will go up idle.

While you're at it, you can check for vacuum leaks the same way. Just spray it on/ around your intake manifold.

Same result.


Ant

uRizen

iTrader: (2)

Mine use to do the same thing until I yanked all the exhaust off and replaced it all w/ new Racing Beat stuff. No more whistle now, just lots of rotary love noises.

TrboSpdAnt

iTrader: (5)

Could it have been the manifold gasket, or a leaky exhaust?

I know that the air pump (which helps lean out the exhaust) whistles... When you swapped out, did you leave the EGR? That makes noise, too.

I think mine's from the intake side... Maybe the air pump.

<shrug>

RotaryEvolution

iTrader: (30)

first i would check to be sure one of the spark plugs didn't back out of it's threads then i would suspect an intake manifold gasket leak.

uRizen

iTrader: (2)

The mainfold > blcok gasket was pretty fired so that couldn've been it, or one of the 100's of other exhaust leaks the old system had.

It couldn't have been the airpump either since I haven't had one for awhile. The same goes for the EGR as well. It still did it after my emissions removal (I pulled EVERYTHING out) and stopped after the exhaust replacement, so it has to have been one of those gaskets or something.

uRizen

iTrader: (2)

Hehe, I'd like to see some sparkplugs shoot from the block sometime.

I ahd it happen to my lawnmower once. It used to smoke alot after I first pulled it out of storage for the summer and I just figured it was the stabil and old gas. It turns out the spark plug had become loose because someone *cough* forgot to tighten it down after he sprayed oil in the bore to prevent rust.

It didn't so much shoot out as kinda "pop" out of the socket with a little poofy flame and fall to the grass. I further solidified my stupidity when I immediatly reached down to grab it and burned my fingers..... <sigh>

RotaryEvolution

iTrader: (30)

i had a hissing noise, after inspection i found one of my trailing plugs backed out half way. i know i tightened the suckers after the rebuild too...

TrboSpdAnt

iTrader: (5)

No... I think this is more of a BOV-type sound, minus the boost.


I got the same thing, then I torqued doen the bolts that clamp shut the airbox.. not, not so much