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Another 5.0 ticking thread!

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Old 07-01-2015, 06:24 PM
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Default Another 5.0 ticking thread!

Hey guys, I have my 2011 FX2 Scab 5.0 with 48k miles on it. I bought it used with 42k and I figured the ticking noise was normal (First time truck owner).

After reading all the threads on here, I got fairly nervous and have an appointment with CarMax service department for them to look at it.

Before I bring it in and start ranting and raving, figured I'd let you fine folks tell me it's normal or not. Appreciate the help.

Old 07-02-2015, 03:25 PM
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Sounds like the injectors. Pop the hood, can you notice it even more from the engine compartment than under the fenders?
Old 07-08-2015, 09:53 PM
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Mine does the same thing although your's is a bit louder. I have 65K on mine and it's been making that noise since day 1 only has gotten louder with time. No performance issues with it and gas mileage has been fine. I can make the knock real loud if I hold the throttle at about 1100RPM. I guess I'll wait till it blows up.
Old 07-11-2015, 09:53 AM
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That doesn't sound too bad. I suspect these aluminum blocks amplify all types of little noises that old iron assemblies did not.
Old 07-11-2015, 02:21 PM
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My Chevy 5.3 has injector tick. Seems to be common.
Old 08-02-2015, 06:51 AM
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Mine does the same thing...I wouldn't worry about it. I've posted about this before but @ 20k, the ticking has virtually quieted. They're some that say it is not normal and in some of the videos you'll see, the "tick" is a lot louder and more prominent - in which I would agree (not normal). Yours sounds like every other 5.0 / 4.6 I've looked at...as well as mine. Most of what you are hearing are the injectors...
Old 08-03-2015, 10:33 PM
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Mine does same. I dont see any problem.
Old 07-26-2018, 10:44 AM
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Update nearly 3 years later...

Anyhow, just wondering if anyone's tick got worse? Mine did @ 75K, to the point that you could hear it clearly at a stop. The tick became more prominent as the oil life reached 5k...I changed the oil and it literally had the viscosity of water when I drained it. So, I started using 5-30 oil and now it's quieter than it's ever been. I'm at 5k on the oil and it's still quiet and running great.


Anyone have any failures?

Last edited by BlueFlameMetallicFX4; 07-27-2018 at 08:27 AM.
Old 07-26-2018, 05:03 PM
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My tick went away after messing with the PCV valve, I’m now at 22k and the tick has never returned. BTW, I also switched to 5-30 due to the amount of towing I do and year round florida heat and my motor IMO also is much quieter l.

https://www.f150forum.com/f38/5-0-tick-382653/
Old 07-27-2018, 12:27 AM
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Originally Posted by Dembruski
My tick went away after messing with the PCV valve, I’m now at 22k and the tick has never returned. BTW, I also switched to 5-30 due to the amount of towing I do and year round florida heat and my motor IMO also is much quieter l.

https://www.f150forum.com/f38/5-0-tick-382653/
What did you do with the PCV valve?


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