Knock knock....it's NOT a rod!
#1
Knock knock....it's NOT a rod!
2002 F150 5.4 basically stock. 225K miles. I have recently noticed a lower engine KNOCK??
It does NOT knock ALL the time.. just MOST of the time.
Is prevalent around 1600-2300 rpm, I have NOT been able to powerbrake and DUPLICATE noise?
I currently have the front diff out so I decided to drop the pan and take a look. I even pulled EVERY rod cap ( 1 by 1 of course) and plasti-gauged them....just because nothing felt bad...
Everybody was around the .0015-.0025 range (it is plasti-gauge so....not an exact thing) Doesn't get better than that....so buttoned everything back together.
BUT what else could/should I look at, I'm at a loss here. I would have swore it was a rod but numbers do NOT lie. (btw i am a 30 yr Journeyman Tool & Die maker....ye si know what .001 vs .005 clearance feels like)
any secret squirrel stuff with this 5.4 ..
It does NOT knock ALL the time.. just MOST of the time.
Is prevalent around 1600-2300 rpm, I have NOT been able to powerbrake and DUPLICATE noise?
I currently have the front diff out so I decided to drop the pan and take a look. I even pulled EVERY rod cap ( 1 by 1 of course) and plasti-gauged them....just because nothing felt bad...
Everybody was around the .0015-.0025 range (it is plasti-gauge so....not an exact thing) Doesn't get better than that....so buttoned everything back together.
BUT what else could/should I look at, I'm at a loss here. I would have swore it was a rod but numbers do NOT lie. (btw i am a 30 yr Journeyman Tool & Die maker....ye si know what .001 vs .005 clearance feels like)
any secret squirrel stuff with this 5.4 ..
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