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08-31-2007, 02:10 PM

cpthowdy

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Join Date: Jul 2007

Location: NORCAL

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help

when i de-accelerate from around 4000 rpm, i notice a very loud pop noise that is coming out from the exhaust.i've asked around but no-one really helped me like FORD!!!any ideas of what is making that (loud)POP!!

08-31-2007, 04:04 PM

4.6 Love

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Join Date: Sep 2004

Location: Mexico

Posts: 6,312

sounds like you have a backfire, have you checked your plugs?

09-01-2007, 01:47 AM

mpt_1962

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Location: Twentynine Palms, CA

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yeah...change your plugs and clean out your MAF

09-01-2007, 09:14 PM

cpthowdy

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Location: NORCAL

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ok,ima do that and will let u kno a.s.a.p

09-02-2007, 09:43 AM

03gtmustang

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decelerating from a high RPM like that will almost always back the exhaust backfire. Nothing to be worried about.

09-02-2007, 09:53 AM

r3dn3ck

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Join Date: Nov 2005

Location: Magrathea/California

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if you have offroad exhaust you should expect that sound to be more audible. How bad is it? Like a single loud pop or hundreds of loud pops in rapid sucession?