Engine tick that winds down after shut off (Video) - Page 3 - MustangForums.com



4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

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Old 08-02-2013, 08:56 PM   #21
ejt6125
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OK guys. New plugs and wires installed, no major issues with the plugs. Changed the oil, will see if the ATF mix will work its magic. Also pulled the belt, noise continued with engine running with no belt. Over all, still ticks, but got a small tune up out of it.
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Old 08-02-2013, 09:17 PM   #22
dawson1112
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Ok after listening to this damn video over and over and over lol

I think I have a solution for you as to what the noise could be

It sounds like something in the timing chain area such as a guid or tensionor is broken and the chain slaps it . when you shut the car off the chain continuies to slap it for a few seconds just like a guitar string vibrates when you pluck it or how a rope will vibrate a bit if pulled taught real fast.
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Old 08-05-2013, 08:45 PM   #23
ejt6125
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OK everyone, my tick has stopped, due to one of these two things. Maybe its the ATF oil mix has worked it out over the last few days or because of this. I wanted to change out my pcv valve, the maintenance calls for it at 80k. I'm at 66k but figured what the heck. So I noticed that the hose leading away from the pcv was dry rotted and somewhat collapsed. I replaced the hose and the valve. Now, I didn't think to check right away on the ticking as that wasn't why I was changing the valve. I noticed later in the day it wasn't there. So make of that what you will. Maybe with that hose collapsed there wasn't any pressure in the pcv and it was just jiggling around. What do y'all have to say??!
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Old 08-06-2013, 05:44 PM   #24
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Been following this with interest.
I'll bet it was in fact your PCV valve. I believe there's a small metal ball in there, and with the vacuum partially missing to the PCV valve (due to the somewhat collapsed hose) the ball wasn't being consistently drawn to it's proper location in the valve. It was bouncing around in the valve! Hence, the noise!
Glad you stumbled upon the fix!
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