Vacuum Noise in 5K

[Richard J. Andrews]

Possibly the dick lock panel?
these are run off of vacuum..
that or the climate control...

HTH!
rich
'86 4kq
At 07:39 PM 3/1/01, you wrote:
>Hi.
>
>My 5LTQW has an unusual noise, whenever I let up on the gas pedal.  It
>sounds like a faint vacuum leak. I am still on the trail of this elusive
>noise.  It happens after running the engine at power then letting all
>the way off the gas at once.  A low volume hissing noise comes from
>under the dash and last for a few seconds.  I'm guessing this is a
>vacuum leak, because of the sound and that it happens at throttle close
>which should spike the vacuum.
>
>Unfortunately I have not been able to find this leak (if that is indeed
>what it is).  And the noise does not happen at idle/stationary so I
>cannot reproduce it with my head under the dash listening.  I suspect it
>is a pinhole or other small leak and so likely to be hard to spot
>visually.
>
>Any thoughts of likely places to look, or other problems to look for?
>
>TIA