Twister086

ok guys i did a search and didnt find anything. so here is my issue. i have a 1989 lx 5spd with a 331ci. 95mm anderson MAF, anderson cold air intake, 90mm accufab throttle body, edelbrock victor 5.0 intake manifold, and an anderson race cam. i have a sharp loud whistle coming from the intake filter at 1500 rpm. (it kinda sounds like a surge valve off a procharger, to give you an idea of the noise itself) everything i listed above is brand new also. car has about 2 hours of run time on it. anyone run into this before. thanks in advance

samseed101

I've got the same problem. it starts around 1500 but is gone by 2000 RPM. Weird. Here's a video of it.

house302

Throttle body.

86 5.0L

lol, samseed stop that[8D]

I got a whistle too but I think something is leaking on my engine

1bad91

mine does the same thing was told it was the throttle body

HPDE

You opened everything up not only for more air to get in, but more sound to get out. Its a normal whistle from the throttle body you'll just have to deal with.

Twister086

thanks everyone, definately not worried about the noise, just seeing if anyone had a quick fix. it can be an intimidating noise to other cars on the street. its going to jpc for tuning within the next month and then we will see how awesome it is.

94StinkinLincoln

u should be happy u have that noise lol it really is intimidating. my dd does that when it idles, makes a slight whine sound and goes away once i hit the throttle, i think its kool lol.
but yeah its more than likely the TB, mine doenst do that though.

WhiteFox92

yup mine does same thing 331 also

95gtdrop

my friends stock 91 made that sound after he put a bbk CAI on it.