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#1 |
Registered Member
Join Date: Jul 2002
Posts: 38
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![]() I have 2 chamber Flowmasters. There is a "crackle" noise coming from the driver side muffler. All my connections are tight and nothing is rubbing against the tail pipe. There is no visible damage on the muffler itself. The engine timing is normal at 10 degree.
The crackle noise is evident in the mornings at cold starts and decreases slightly when it's warmed up. Any ideas of what could be causing this? Muffler ping or something? |
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#2 |
Registered Member
Join Date: Jun 2001
Location: Fort Leonard Wood, MO
Posts: 179
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![]() I had something like that happen to my truck. Noise in one muffler. Was told it was valves but it turned out to be bad baffles in the muffler itself.
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93 GT, 5.8 EFI usual bolt ons, 3.55's, subs, hurst, K+N 78 F100 Short bed, 5.8, dual pipes 4 bbl 03 Sable |
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#3 |
Registered Member
Join Date: Sep 2002
Location: Boston
Posts: 592
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![]() I second the motion ablout the baffles. I had a piece of catalyst come loose and go into my muffler and it made a ton of noise. It's lesser when hot because the metal expands and the loose piece doesnt vibrate as much because of the reduces clearances.
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91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior |
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#4 |
Registered Member
Join Date: Jul 2002
Posts: 38
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![]() Thanks. I got it resolved.
It was indeed the baffles. It took her to a muffler shop because i noticed that the exhaust was leaking from the muffler to tail pipe weld. The guy bumped the muffler with his hand and it sounded different than the other muffler. I agreed to have it replaced and when shook the old muffler... rattle. rattle. |
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