Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
The Terminator
Engine/Tuning
Brand new Cobra with strange sounds-detonation?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Phxcobra" data-source="post: 894533" data-attributes="member: 14171"><p>Hi all,</p><p>I just bought a new 2003 Cobra and I've noticed a strange noise from about 2500-3500 rpm independant of gear. Sounds sort like BBs in a jar or sorta like a pulley with a bad bearing. I've done a search and read about some people with a marble-like noise and thinking it's just sounds from the supercharger. I thought perhaps the dealer filled it with their 87 octane stock they have so I've run the tank down to 3/4 twice now and fill up with 100 octane racing fuel. That's a total of about 10 gallons of 100 octance added. I still hear it. I just added the second 5 gallons of race fuel so maybe it hasn't mix well enough to make a difference if it is detonation. Any ideas? It's only got 200 miles on it. </p><p></p><p>thx,</p><p>Pete</p></blockquote><p></p>
[QUOTE="Phxcobra, post: 894533, member: 14171"] Hi all, I just bought a new 2003 Cobra and I've noticed a strange noise from about 2500-3500 rpm independant of gear. Sounds sort like BBs in a jar or sorta like a pulley with a bad bearing. I've done a search and read about some people with a marble-like noise and thinking it's just sounds from the supercharger. I thought perhaps the dealer filled it with their 87 octane stock they have so I've run the tank down to 3/4 twice now and fill up with 100 octane racing fuel. That's a total of about 10 gallons of 100 octance added. I still hear it. I just added the second 5 gallons of race fuel so maybe it hasn't mix well enough to make a difference if it is detonation. Any ideas? It's only got 200 miles on it. thx, Pete [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
The Terminator
Engine/Tuning
Brand new Cobra with strange sounds-detonation?
Top