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  #1  
Old 06-24-2009, 12:54 PM
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my exhaust makes a loud pop/cracking noise

i just got my exhaust done and got true duals with a glasspack muffler. when the exhaust gets hot it makes a loud cracking noise like the sound of a aluminum flag pole makes if you hit it with something. the exhuast is only a week and a half old and idk if this is supposed to do this. ill turn my truck off and still 30 the sound will still exist until its cooled down. what is this? is it suppossed to do that? will it go away?? help
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  #2  
Old 06-24-2009, 03:56 PM
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Quote:
Originally Posted by msa4x4 View Post
i just got my exhaust done and got true duals with a glasspack muffler. when the exhaust gets hot it makes a loud cracking noise like the sound of a aluminum flag pole makes if you hit it with something. the exhuast is only a week and a half old and idk if this is supposed to do this. ill turn my truck off and still 30 the sound will still exist until its cooled down. what is this? is it suppossed to do that? will it go away?? help

A crack/pop usually indicated a lean condition from what I've heard.
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  #3  
Old 06-24-2009, 04:16 PM
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glasspacks make popping and crackling noises most of the time(especially without cats). do you have any cats on it? is it while decelerating? revving? accelerating?

Last edited by Matts ford; 06-24-2009 at 04:26 PM.
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  #4  
Old 06-24-2009, 04:26 PM
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whats a lean condition? and my cats are still on it will make that sound when its just sitting turned off
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  #5  
Old 06-24-2009, 04:29 PM
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Quote:
Originally Posted by msa4x4 View Post
whats a lean condition? and my cats are still on it will make that sound when its just sitting turned off
lean= too much air or not enough fuel in the A/F mixture

when its shut off and it makes a popping noise is just the pipes cooling down. nothing to worry about at all. it does the same with every stock exhaust system that i've seen, its just more noticeable when its on both sides instead of just the passenger side.
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  #6  
Old 06-25-2009, 12:01 AM
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THEREALMIG
get rid of those glasspacks and put a real muffler on!!
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  #7  
Old 06-25-2009, 11:04 PM
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Originally Posted by migdaddy View Post
get rid of those glasspacks and put a real muffler on!!
heard that before
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Old 06-25-2009, 11:27 PM
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THEREALMIG
haha its true though. glasspacks were only really used on the old school muscle cars.
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  #9  
Old 06-26-2009, 02:35 PM
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yea i dont care for the mufflers
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Silver 2001 5.4L F-150 XLT Supercrew
PERFORMANCE: True Dual Flowmaster 10 Series - 2.25'' Piping -Rear Cat Delete - H pipe - Tips Dumped and tucked up high under bumper-K&N CAI
APPEARANCE: 2 inch Front Spacer - 20'' Panther Realm Wheels - 305/50/20 Cooper Discoverer H/T Plus -5%Tint On Top Of 20% On All Windows Except Windshield -Billet Grill - Lightning Headlights and Corners -Blacked Out Tail Lights and 3rd Brake Light
SOUND: Kicker CVT 10'' -Sony 800 Watt amp- Sony Head Unit with Remote
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  #10  
Old 06-27-2009, 02:38 PM
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Magnapacks are the only good glass-packs IMO.
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Old 06-27-2009, 02:38 PM


 
 
 
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