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Old January 23rd, 2007, 06:31 PM   #1
Snowman43
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Default 5.4L motor noise

I have an '05 F150 with the 3 valve 5.4. Seems to have a top end ticking noise than gets slightly louder after the engine is brought to operating temp.

Doesn't really seem like valvetrain to me (higher pitched than a normal lifter), is it possibly an injector?

Just wondering if anyone has ran into this problem before....

Thanks!
Brian

p.s. It is a fairly high mileage motor for the year, almost 87,000
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Old January 23rd, 2007, 07:24 PM   #2
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First - what oil are you running? These motors are very sensitive to viscosity, and I've heard 5-30 oil make them sound like they have lifter ticks - changed for 5-20 the noise disappears.

Second - I've seen timing chains go on these motors at that mileage, though they dont really make that same noise and it tends to change with engine load. It's possible it's the injectors "clicking" - I know mine on my ranger are fairly loud and could be mistaken for top end noise if you didn't know what they sounded like. Also, dont know if these motors have spark plug issues - and if they do, don't know how this happens (meaning I dont know if they actually do come loose first or if the casting just sucks)...you may want to see if they're all tight as well.

Just some thoughts
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Old January 23rd, 2007, 07:30 PM   #3
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Thanks for the reply, have been doing some searching and found a Ford TSB on these engines, apparently they have alot of noise issues. Possibly what they call the VCT phaser, somehow adjusts the valve timing to engine load.

heres a link to the bulletin if anyone else is having this problem.

http://www.ford-trucks.com/tsb/fullt...php?tsb=06-4-7

Does have a crankcase full of 5-20 by the way.

Thanks
Brian
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Old January 23rd, 2007, 11:08 PM   #4
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unfourtunatly, its normal... a lot do it from the factory...
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Old January 24th, 2007, 03:15 PM   #5
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If the VCT phaser is one that works off oil pressure, like the ones that the DOHC ZX2 motors have, then I've seen those go bad and make a lifter noise as well.....didn't know that those motors were variable timed (if you want to call it that - if it's like the escort motors it's really just another position for the exhaust cam only)
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