Ticking under the hood - Mustang Evolution

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Old 07-09-2014, 08:50 PM   #1
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Ticking under the hood

I have a stock 4.6 manual trans. mustang GT that has a ticking under the hood it sounds like a lifter but it is not. I also thought that it sounded like an injector but I changed those and it is still the same. It does not seem to affect the way the car runs but it is loud. I used a stethoscope and can not figure out where it is coming from. Any ideas would be great. Thank you!
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Old 07-09-2014, 08:54 PM   #2
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Maybe a plug working its way out? Or could be timing guide/chain slap.


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Old 07-09-2014, 08:56 PM   #3
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I checked all the plugs, theyare clean and tight.
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Old 07-09-2014, 09:06 PM   #4
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Maybe it could be a spun rod bearing
That was my problem after everything and mine was ticking also
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Old 07-09-2014, 09:09 PM   #5
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it does not get louder when i rev it up and it is not a hollow sound. It is annoying
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Old 07-09-2014, 10:11 PM   #6
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Tick tick tick tick...
Probably the chain guides.
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Old 07-09-2014, 10:54 PM   #7
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Man I just had same problem and it was a spark plug that came off wtf right?


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Old 07-10-2014, 12:30 AM   #8
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Check exhaust gaskets and flange where pipes meet manifold.


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Old 07-10-2014, 03:10 AM   #9
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Change to pi heads if your plug works its way out. They have more threads than the 99-03 stock ones

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Old 07-12-2014, 10:53 PM   #10
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I pulled the valve covers today and the timing chains feel tight I can not feel any slack in them. Any other clues?
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Old 07-12-2014, 11:43 PM   #11
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Did you check for exhaust leaks?
A very popular diagnostic tool for this sort of work seems to be an automotive stethoscope.
The tick hunters tool of choice...
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Old 07-13-2014, 12:10 AM   #12
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Has this ticking just something that has happened recently? Or is it something carried over from the previous owner? recent oil change? do you use synthetic? how many miles do you have, maybe use thicker oil.
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Old 07-13-2014, 10:57 PM   #13
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I had a ticking that lasted for about a month and a half! End result timing chain guide broke! It was annoying as hell honestly!
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Old 07-14-2014, 09:36 PM   #14
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If my guides were bad would the chain still be tight? I will check for exhaust leaks in the morning. I bought the car this way.
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Old 07-14-2014, 11:48 PM   #15
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My actually was still tight just had broken guides! I also had a small exhaust leak on the left side that had a slight tick but nothing major like the other
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Old 07-15-2014, 08:04 AM   #16
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Quote:
Originally Posted by ward.r View Post
Change to pi heads if your plug works its way out. They have more threads than the 99-03 stock ones

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99-03 heads ARE PI heads... wth are you talking about? The 04 2V revision got 8 thread plug holes and so did the 05 4V revision. All others have 4 threads.


OP, the tick could be a number of things. Many of these motors have a slight tick and its just the nature of the beast. Don't be like a previous poster on here who started talking about a complete engine teardown because of a minor tick. That is ridiculous. Very well could be the timing chain guides as was said.
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Old 07-15-2014, 03:06 PM   #17
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I also had a slight tick sound on the right head, turns out it was a sticky exhaust valve and a collapsed lifter, ( not proper word for part) it works the same as hydraulic lifters in a push rod engine though. if it collapses you will get a slight tick.
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Old 07-27-2014, 06:56 PM   #18
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So I finally tore the front end apart to find out the ticking. the passenger side chain tensioner is weak. I can push it in fairly easy and is comes back out real slow.
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Old 08-06-2014, 02:36 AM   #19
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I had had something similar. And it was a broken valve spring.
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Old 10-11-2014, 10:20 PM   #20
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Timing chain slap. Change the guides. Very common right around 90-120k


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Old 10-12-2014, 09:07 AM   #21
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I couldn't help myself from adding a bottle of 20 oz Techron to gas tank and gently using Seafoam inside of intake. Just to help eliminate second guessing.
Try searching the BITOG site for "ticking" 4.6L Ford.
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Old 10-12-2014, 11:48 AM   #22
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I was under the impression that you were NOT supposed to use fuel additives/cleaners in a Ford fuel system. Fords fuel injectors are teflon coated and those additives will eat away at the teflon then causing injector failure.


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Old 10-17-2014, 10:22 PM   #23
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All I know are the ins and outs of Ford's 3.8 singleport, and the 4.6 DOHC engines. Adding an oil seperator/filter in line of the PCV to intake is a must for these 2 platforms.
-You can very safely perform this performance improvement maintenance by cleaning the intake smooth again. It's suggested to perform this cleaning towards the end of your expected oil life cycle or day or two before next oil change and don't forget to replace the gas filter above the tank.
-Add one large bottle (20 )z) of Techron to gas tank.
-Use 1 can of Seafoam and slowly add it to the vacuum line or PCV valve directly. Slowly add small amounts to be sucked in. Carefully manipulate the throttle to maintain a smooth low idle, no high revs, yet. idle Once a 1/3 of the can is down, turn off car, let sit 20 minutes.
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Old 10-17-2014, 10:27 PM   #24
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After waiting the 20 minutes, start up the car and let it idle for a few minutes, then slowly start revving it up till there's no more smoke bellowing from exhaust tips.
That will no doubt improve overall engine performance. They'll run peppier, keepin on accelerating, better gas mileage.
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Old 10-17-2014, 11:34 PM   #25
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I thought the same with mine, ended up being a small exhaust leak at the doughnut gasket.. Lol


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