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Old 10-31-2014, 11:24 AM   #1
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Exhaust pops on start up

Hey guys

For what ever reason as of yesterday, the second I start my car its pops loudly... No trouble starting or anything like that just a loud pop sound... Saw on a non related forum somewhere it could be fuel leaking and igniting on start up??

When I go into a store or something and come out some times it pops again, some times it doesn't. Or just isnt as loud. I noticed it startled some one yesterday.
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Old 10-31-2014, 08:09 PM   #2
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Mine makes a popping sound from the intake sometime. Not sure why. Mike rousch said it was tune related because I have name right now but I am switching to him.


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Old 10-31-2014, 08:57 PM   #3
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I have Borla ATAKs and sometimes get pops on startup and it sounds good. Is yours a not good sounding pop? I love the Harley like Pops in driving and down shifting that the Borla's and the Ford TrackCal tune produces. Its like my past old school 351 Torino I had in the late 70s.

Or is your Pop something that dos not sound good?
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Old 11-01-2014, 11:52 AM   #4
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Oh its got the good popping on decel... I'm talking about the moment I turn the key, it gives a loud pop as the engine starts. Very noticeable sound that doesn't belong at start up.
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Old 11-01-2014, 02:07 PM   #5
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leaky injector ? Seeping a little fuel into a intake port while engine stopped? I would have that looked at.

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Old 11-01-2014, 02:09 PM   #6
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It never did it before the tune. So after I get the rousch tune I'll see if it does it


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Old 11-01-2014, 02:45 PM   #7
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Quote:
Originally Posted by ArtU View Post
leaky injector ? Seeping a little fuel into a intake port while engine stopped? I would have that looked at.

Art

Possibly.. I can find a bunch of non mustang related forums with different cars doing the same thing and everyone is saying thats what it is.

Looks like I'll be heading in. That would be *** .... only 11k on it and I've barely had any fun yet
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Old 11-01-2014, 06:48 PM   #8
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I'm scared to take mine in because it's tuned and all


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Old 11-01-2014, 06:52 PM   #9
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you should record it so we can hear what your talking about.
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Old 11-01-2014, 06:54 PM   #10
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Mine doesn't do it every time. But I bet if I went outside right now it would because it's cold outside. Let me go see and I'll put it on YouTube and copy paste the link.


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Old 11-01-2014, 06:58 PM   #11
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It didn't do it this time but had a slightly rough idle. Let me see if I can upload it


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Old 11-01-2014, 07:02 PM   #12
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http://youtu.be/bDTasdino7c


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