Exhaust noise
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Senior User
Joined: May 2001
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Exhaust noise
Is it possible to get an exhaust backfire just on the drivers side cylinder bank? My drivers side muffler makes a popping noise under light throttle only. It is loud and sounds like a backfire, but I am pretty sure the muffler is trashed (tailpipe got ripped out of the back of it), but I wanted to get a second opinion. The truck drives normally, it doesnt act like its backfiring, rpms stay smooth and power is always there.
Thanks
Aaron
Thanks
Aaron
New User
Joined: Jan 2008
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Exhaust noise
What engine is in it?
Sounds to me like 7 & 8 cylinders are crossfiring.
If the firing order ends with 7-8
Seperate the wires on the valve cover.
Also check the condition of the sparkplug wires.
[font color=red]Dennis
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Sounds to me like 7 & 8 cylinders are crossfiring.
If the firing order ends with 7-8
Seperate the wires on the valve cover.
Also check the condition of the sparkplug wires.
[font color=red]Dennis
Calgary,Alberta,Canada[/font]http://www.clubfte.com/users/mil1ion/canada_flag_animated.gif
[link:www.ford-trucks.com/guidelines.html|FTE Moderator]
http://www.clubfte.com/users/mil1ion/Minimorleytruck.JPG
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[font color=red]
Please Don't Ask Me Any Tough Questions,
"I'm Saving My Memory For When I Develop Alzheimer's" [/font]
[font color=blue]78 F-150 429CJ,Silver,Explorer Pkg.
[/font]
Thread Starter
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Senior User
Joined: May 2001
Posts: 194
Likes: 0
Exhaust noise
Its a 360, so 7 & 8 are last in the order. I havent checked the wires, but they are less than 6 months old, they are Bosch whatever sparks. I will check the wire routings.
Thanks
Aaron
Thanks
Aaron
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
Exhaust noise
Hey Aaron, how’s it going?
Anytime you have air entering the exhaust system like your trashed muffler, you’re going to get some popping sounds, especially on deceleration. Put on a new muffler and I bet it goes away.
Barry
Anytime you have air entering the exhaust system like your trashed muffler, you’re going to get some popping sounds, especially on deceleration. Put on a new muffler and I bet it goes away.
Barry
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