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clacking from start with heavy acceleration noise

Started by nannho, March 30, 2015, 10:28:30 AM

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nannho

OK need some help as I checked the TSBs and couldn't necessarily found anything. Scenario is below:

At a light stopped and there is a civil next to me. Light turns green and this guy guns it. He either has the biggest f**king hole in his muffler of no muffler at all. I was on the phone and gunned it to get past this guy, and maybe around 30-50 mph I hear this loud, machine gun, clacking. Very short like 2 or 3 seconds, like 4 to 8 clacks and defiantly from the SHO. It sounded like I put a golf ball in a jar and rapidly shook it back and forth against the glass, or something to that effect.

It was about 40 degrees and clear. Directly prior I was sitting in a lot idling for 10 min or so.

What could this be? Has happened one other time that I can recall.

Knock sensor or condensation on the intercooler? Was slow to shift through as well, as I was getting on it.

Tried to repeat issue and could not. Any ideas?

Cross posted on SHOforum.com as well.

Thanks guys!

SHOdded

You mentioned this was on a 1-2 shift.  Is your SHO tuned?
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

nannho

no sir...stock...non PP.'

estimating within that shift range.