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04-27-2005, 10:06 PM
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#1 |
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Blue 67
 Join Date: Apr 2004
Location: Western WA
Posts: 1,178
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Reasons for backfiring
Hey guys/gals;
After few weeks of working on interior, I got to drive my truck last weekend but boy! it was backfired eack time I let the pedal go especially in downhill. It doesn't back fire when my foot is on the gas or when it idles. I have glass pack mufflers (I never had one before), can some of it related to them? Does warmer weather has anything to do with this also? Sorry if the questions are not smart ones. Thanks. |
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04-27-2005, 10:28 PM
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#2 |
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Registered User
Join Date: Jun 2004
Location: Gainesville, Fl
Posts: 382
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well with my flowmaster 40 series mufflers my truck never backfired...but now with my straight loud pipes it backfires like crazy!!! Just remeber loud pipes save lifes! lol Sorry I am no help on why, but the glasspacks would be my suggestion
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Man I need another 67-72!!! 
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04-27-2005, 11:03 PM
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#3 |
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Still drivin' a Rat Rod
Join Date: Sep 2004
Location: Monett Missouri
Posts: 4,925
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Sounds like it's just the glass packs prolly,depending on where they are and how much pipe is following them,determines how much it backfires.
Some people like that sound 
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Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the *a$#* 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website |
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04-27-2005, 11:42 PM
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#4 |
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Registered User
Join Date: Jun 2004
Location: Beeville, Texas
Posts: 1,943
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glasspacks always backfire like that when you're hauling a$$ and you let off the throttle.
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RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck |
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