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Can't get rid of backfiring.
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Topic: Can't get rid of backfiring. (Read 3092 times)
Hoov41
Newbie
Posts: 8
Newbie
Can't get rid of backfiring.
«
on:
October 21, 2014, 09:11:31 AM »
I have had the carb tuned. New cap rotor plugs and wires and everytime i downshift it sounds like a machine gun firing. It's so loud. My exhaust is pretty rusted and has quite a few holes in it. Could that be the issue?
83 K10
4SPD
Stock Gearing.
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83 Chevy K10 short box
350 bored and stroked
38.5 superswamper TSLs
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: Can't get rid of backfiring.
«
Reply #1 on:
October 21, 2014, 04:33:46 PM »
Holes can and will pop.
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
78BIG-TEN
Frequent Member
Posts: 261
Newbie
Re: Can't get rid of backfiring.
«
Reply #2 on:
October 21, 2014, 04:40:04 PM »
downshift accelerating or decelarating
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Dan75k20
Frequent Member
Posts: 269
Newbie
Re: Can't get rid of backfiring.
«
Reply #3 on:
October 21, 2014, 08:01:43 PM »
lol my header fell apart last week sounded horible and back fired on deceleration the tube was broke going into the collector for a while
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Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: Can't get rid of backfiring.
«
Reply #4 on:
October 21, 2014, 08:56:28 PM »
I have a 1/2" hole on my impala on the resonator . it will also pop when I downshift
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
roundhouse
Senior Member
Posts: 1474
Newbie
Re: Can't get rid of backfiring.
«
Reply #5 on:
October 22, 2014, 08:22:57 AM »
Yep. Holes letting Fresh air into the exhaust will cause popping when your slowing down
My bronco does that. I kinda like it
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78BIG-TEN
Frequent Member
Posts: 261
Newbie
Re: Can't get rid of backfiring.
«
Reply #6 on:
October 22, 2014, 08:45:59 AM »
Looks like its time for some new headers
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Hoov41
Newbie
Posts: 8
Newbie
Re: Can't get rid of backfiring.
«
Reply #7 on:
October 22, 2014, 12:03:47 PM »
Thanks. Yeah it's on deceleration. Normally only at higher RPMs I will fix the exhaust hopefully that will work.
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83 Chevy K10 short box
350 bored and stroked
38.5 superswamper TSLs
Dan75k20
Frequent Member
Posts: 269
Newbie
Re: Can't get rid of backfiring.
«
Reply #8 on:
October 28, 2014, 04:07:39 PM »
Big ten i had an extra set in my basement
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Can't get rid of backfiring.