Hey,

This started last week. After I turn the car off, there's a sound that sounds like air escaping that comes from the engine bay. It lasts about 7 seconds. It's NOT the short ram. I haven't had time to examine the problem further yet, but today after work I popped the hood and discovered that it's coming from the back of the IM near the MC and BB. I checked the vacuum line on the BB to IM and it's secure.

Tomorrow I'm gonna examine further. It might be a vacuum leak. Has this happened to anyone before, any pointers?

 

well i know my 12.5 motor does the same thing
but then again it generates mad vacuum

 

lol, I've got a stock D15B7 w/ 254,000miles on it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by litterbox &raquo;</TD></TR><TR><TD CLASS="quote">lol, I've got a stock D15B7 w/ 254,000miles on it </TD></TR></TABLE>

damn.... exhaust mana gasket?

 

It sounds like it's coming from the back of the IM near the firewall on the master cylinder side. I was worried it was the brake booster, but it's not that vacuum line.

The engine still runs fine and I'm not throwing any CEL's.

 

a really high pitched noise? if so, my car does it too.

 

Do you have a cai or short ram? Short rams and CAImake noise when you shut down. Sucks in still after you shut down

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by UncleHonda &raquo;</TD></TR><TR><TD CLASS="quote">Do you have a cai or short ram? Short rams and CAImake noise when you shut down. Sucks in still after you shut down</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by litterbox &raquo;</TD></TR><TR><TD CLASS="quote">It's NOT the short ram.</TD></TR></TABLE>Thanks for the input though

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hatchy-Ownzjo0 &raquo;</TD></TR><TR><TD CLASS="quote">a really high pitched noise? if so, my car does it too.</TD></TR></TABLE>It's not really high pitched. It just sounds like high velocity air escaping quickly through a small space.

 

well, this may be a shot in the dark but is the car equipped with air conditioning? Could it be a possile leaky o-ring or compressor?

My only other guess is a vaccum leak of some sort : |

good luck I hate it when my car ***** up...

 

I removed AC completely.

 

ok well that rules air conditioning out, check your charcoal canister for leaks...

If you get desperate you can always try the soapy water technique

 

u can also get some carb cleaner, and spray were u think its leaking,
if it stops after u spray, then u know u have a leak, if it continues, then
check ur flux capacitor,