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

Verify Timing Set Correctly. 4.6 PICTURES

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Old 02-24-2009, 09:50 PM
  #11  
al02gt
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I'm also thinking about replacing the oil pump while I got it taken apart. Just in case it had something to do with the origional tensioner/guide problem. The top guide bolt hole bracket was broken so the passenger guide was getting ground down and letting the chain slap around a little.
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Old 02-25-2009, 07:16 PM
  #12  
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Well.. it's still making the ticking noise at "idle". Once you start it up, the sound doesn't start until about 10 seconds later. And I also don't notice the noise after you give the car any throttle.

Here is a sound clip.
http://packetfocus.com/mustang/gtnoise.wma

The car doesn't have any misses, or stumbles and runs great. All the gauges are good and the power is the same as before.

Could this be a lifter? Or worse?

If it is a bent valve it wouldn't run right would it?
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Old 02-25-2009, 08:20 PM
  #13  
Davojan59
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wow that sounds pretty bad. Maybe the chain slapping around a bit? Im not sure man but i hope u get it figured out.
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Old 02-25-2009, 08:38 PM
  #14  
al02gt
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Yeah.. The timing chain looked really good and is all new. I thought it could be the tensioner but not sure.

I guess that I'll pull the valve covers again and check all the valvetrain.
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Old 02-25-2009, 08:45 PM
  #15  
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yea i would check that. Did u ever look at one of the stickies about "How to fix ur ticking 4.6" or something like that. Just throwing it out there cause i guess these cars do have those problems sometime down the road
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Old 02-25-2009, 09:51 PM
  #16  
al02gt
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Yeah

I have just replaced the entire timing chain setup/tensioners/guides etc.

I'm going to pull out the lash adjusters tomorrow and check all of them.
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Old 02-25-2009, 11:52 PM
  #17  
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Originally Posted by al02gt
BTW: From the front of the engine. The passenger side cam dot is at 11 o'clock and the driver side is at what seems to be 1 o'clock.
I couldn't really tell from your pics but since you said that I change my original response. Your timing is off.

Safe mode is 12, 3, 6, and 9 oclock. The passenger side mark on the gear should be more to the right then the driver side. You have it the other way around. Don't start that car anymore cause you are slamming the pistons into the valves. I can tell in the video since the knocking is half the speed of the engine. You now have bent valves and gouged pistons. Sorry man. Didn;t you spin the engine by hand first?
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Old 02-25-2009, 11:54 PM
  #18  
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thats how mine looked
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Old 02-26-2009, 07:51 AM
  #19  
al02gt
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Hmmm

The car only makes the ticking noise at idle. I did check the PTV clearance by spinning the crank several times with a ratchet before starting it up.

I'm pulling the valve covers today and checking the HLA, hoping one of them is making the ticking.

If it was a valve hitting a piston it wouldn't run correctly would it? The car doesn't miss, skip or backfire. Runs very smooth while driving at all rpms.

Just when the car comes to a stop I hear the ticking noise. Giving any throttle makes it go away, or so low you could barely hear it.

If you have the dot's on the crank and cams, is it possible to have it out of time?
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Old 02-26-2009, 07:55 AM
  #20  
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It's probably one of your timing chaing tensiors, mine ticked when I did mine, It sounded sort of like a diesel truck.

You should probably replace them asap if that turns out to be the issue.
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