Hissing noise under hood help! - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 07-09-2014, 06:16 PM   #1
Registered Member
Regular
 
Basshunter's Avatar
 
Join Date: Jul 2014
Location: Beverly MA
Region: Massachusetts
Posts: 72
Hissing noise under hood help!

As soon as I start up it sounds like a turbo whistle under the hood and my idle sounds horrible and it feels like I have a huge cam in this I don't know why it started happening any suggestions would help me a lot


2003 full Bolt on GT
Basshunter is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-09-2014, 06:30 PM   #2
Registered Member
Regular
 
V6 stang's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 2,252
Maybe a vacuum leak?
__________________
"Hp sells cars, Tq wins races" - Carroll Shelby... RIP
2012 Mustang GT Convertible
Roush Exhaust

2003 Mustang GT (Sold)
1999 35th Anniversary V6(SOLD)
V6 stang is offline   Reply With Quote
Old 07-09-2014, 06:34 PM   #3
Registered Member
Regular
 
Basshunter's Avatar
 
Join Date: Jul 2014
Location: Beverly MA
Region: Massachusetts
Posts: 72
Quote:
Originally Posted by V6 stang View Post
Maybe a vacuum leak?

That's what I think but where to check ?


2003 full Bolt on GT
Basshunter is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-09-2014, 07:09 PM   #4
Registered Member
Regular
 
Hellish Horse's Avatar
 
Join Date: Apr 2012
Region: Arizona
Posts: 796
Take your air line off the Brake Master Cylinder & Blow Smoke through it & the smoke will come out where the leak is.
Hellish Horse is offline   Reply With Quote
Old 07-09-2014, 08:02 PM   #5
Registered Member
Regular
 
V6 stang's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 2,252
Hissing noise under hood help!

Vacuum leaks can be a ***** to find. I've heard there is spray that will bubble when it gets on the leak.

Try to listen and locate the sucking sound.
__________________
"Hp sells cars, Tq wins races" - Carroll Shelby... RIP
2012 Mustang GT Convertible
Roush Exhaust

2003 Mustang GT (Sold)
1999 35th Anniversary V6(SOLD)
V6 stang is offline   Reply With Quote
Old 07-09-2014, 08:48 PM   #6
Registered Member
Regular
 
Basshunter's Avatar
 
Join Date: Jul 2014
Location: Beverly MA
Region: Massachusetts
Posts: 72
What causes a vacuum leak?


2003 full Bolt on GT
Basshunter is offline   Reply With Quote
Old 07-09-2014, 10:09 PM   #7
Registered Member
Regular
 
V6 stang's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 2,252
Most of the time it's when a hose deteriorated to the point of a hole being put in the hose. Or hoses can slip off, tear, many things


Yes I edit my posts a lot, auto correct likes to sabotage me!
__________________
"Hp sells cars, Tq wins races" - Carroll Shelby... RIP
2012 Mustang GT Convertible
Roush Exhaust

2003 Mustang GT (Sold)
1999 35th Anniversary V6(SOLD)
V6 stang is offline   Reply With Quote
Old 07-09-2014, 10:11 PM   #8
Registered User
Newbie
 
MustangPooh's Avatar
 
Join Date: Jul 2014
Location: Bronx NY
Region: New York
Posts: 15
Mines was doing that and it was the belt I bought a new one and it went away the one I brought was dayco brand


Mustang Evolution
MustangPooh is offline   Reply With Quote
Old 07-10-2014, 02:32 PM   #9
Registered Member
Regular
 
Basshunter's Avatar
 
Join Date: Jul 2014
Location: Beverly MA
Region: Massachusetts
Posts: 72
Quote:
Originally Posted by MustangPooh View Post
Mines was doing that and it was the belt I bought a new one and it went away the one I brought was dayco brand


Mustang Evolution

It was weird I drove it down my street and it was running like **** and sounded like **** because of it too


2003 full Bolt on GT
Basshunter is offline   Reply With Quote
Old 07-10-2014, 05:51 PM   #10
Registered Member
Regular
 
Basshunter's Avatar
 
Join Date: Jul 2014
Location: Beverly MA
Region: Massachusetts
Posts: 72
Click image for larger version

Name:	ImageUploadedByMustang Evolution1405032624.045423.jpg
Views:	72
Size:	756.2 KB
ID:	161169 found the vaccum leak


2003 full Bolt on GT
Basshunter is offline   Reply With Quote
Old 07-10-2014, 06:17 PM   #11
Registered Member
Regular
 
V6 stang's Avatar
 
Join Date: Dec 2011
Region: Texas
Posts: 2,252
That'll do it. Hopefully it fixes your problem!


Yes I edit my posts a lot, auto correct likes to sabotage me!
__________________
"Hp sells cars, Tq wins races" - Carroll Shelby... RIP
2012 Mustang GT Convertible
Roush Exhaust

2003 Mustang GT (Sold)
1999 35th Anniversary V6(SOLD)
V6 stang is offline   Reply With Quote
Old 07-10-2014, 08:07 PM   #12
Registered User
Newbie
 
MustangPooh's Avatar
 
Join Date: Jul 2014
Location: Bronx NY
Region: New York
Posts: 15
Great #BackWithTheSilenceOfTheStang


Mustang Evolution
MustangPooh is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
attn jetlife 01gt hissing noise vortech gt 1996-2004 Mustang GT 3 12-03-2013 04:14 PM
Hissing Noise JetLife 01GT 1996-2004 Mustang GT 14 12-03-2013 01:03 PM
Nasty noise under the hood please help! S197STANG 2005-2010 Mustang GT 18 11-05-2011 11:14 PM
Rattling/hissing noise Cdlax93 2005-2010 Mustang GT 19 05-27-2011 10:04 AM
hissing noise? OHHitsKB Pre-2005 V6 Mustang 12 07-10-2010 06:30 PM

» Like Us On Facebook



06:08 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.