The 5.4 Nightmare Continues
07-29-2017, 03:08 PM
#1
The 5.4 Nightmare Continues
Good afternoon everyone. I've had so many issues come up over the past several months, many of you probably know me as a regular in this forum. You were all very helpful when I did the timing job in the Spring.
A couple of weeks ago, my 2006 5.4 3v started making a new sound. Only on the first start of the day, it will make a short rattling sound for just a moment. But the intensity of the sound causes me to be concerned. It's a strong vibrating sound. It certainly doesn't sound like the typical timing chain rattle to me. Can anyone guess what this is?
I have recorded the sound, and it's available below. I probably didn't do a very good job of capturing the sound, but I can still hear it just briefly after the engine starts.
A couple of weeks ago, my 2006 5.4 3v started making a new sound. Only on the first start of the day, it will make a short rattling sound for just a moment. But the intensity of the sound causes me to be concerned. It's a strong vibrating sound. It certainly doesn't sound like the typical timing chain rattle to me. Can anyone guess what this is?
I have recorded the sound, and it's available below. I probably didn't do a very good job of capturing the sound, but I can still hear it just briefly after the engine starts.
07-31-2017, 12:02 AM
#2
Senior Member
Sounds like timing chain rattle to me. Are you getting a "low oil pressure" flash on the display for a split second?
Could drop the pan and look for guide pieces if one felt inclined to do so.
Hope it straightens out for you.
Could drop the pan and look for guide pieces if one felt inclined to do so.
Hope it straightens out for you.
07-31-2017, 11:54 AM
#5
. .
I don't hear anything either. Maybe try opening the hood and recording from inside during start up
I don't hear anything either. Maybe try opening the hood and recording from inside during start up
Last edited by SCORGE; 07-31-2017 at 02:37 PM. Reason: hpasdrjhjnhashjubdfiopg
07-31-2017, 01:13 PM
#7
Renaissance Honky
Are you talking about that quick 'rumble' sound just as the engine fires?
Try doing a quick 'flood start' (a few seconds of cranking with the gas pedal floored) until your oil pressure light turns off, and then a little more. See if it does that sound with the engine primed with oil. Might not tell you what the problem is, but will narrow it down a bit.
Try doing a quick 'flood start' (a few seconds of cranking with the gas pedal floored) until your oil pressure light turns off, and then a little more. See if it does that sound with the engine primed with oil. Might not tell you what the problem is, but will narrow it down a bit.
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07-31-2017, 01:40 PM
#8
Moderator
@corey_lax this is the one and only warning. Do not verbally attack other members. There is no need for name calling.
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650NutKase (07-31-2017)
07-31-2017, 02:28 PM
#9
Senior Member
I must have missed what all the turmoil was about!
I used some sound filters on some editing software at work to isolate the sound.
It does sound like chain slap, although hard to say for absolute certainty. Thats why I asked about the pressure light appearing at start.
Agree, it would be better if recorded under the hood.
I used some sound filters on some editing software at work to isolate the sound.
It does sound like chain slap, although hard to say for absolute certainty. Thats why I asked about the pressure light appearing at start.
Agree, it would be better if recorded under the hood.
