Notices
6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Rod Knock???

Thread Tools
 
Search this Thread
 
Old Aug 22, 2011 | 04:45 PM
  #1  
The Boss's Avatar
The Boss
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 35
Likes: 0
Rod Knock???

My buddy has a beautiful 2005 F-350 Super Crew SRW with the 6.0 Powerstroke and just under 100,000 miles on it. Coming home from the Carolinas this past weekend he started blowing smoke & had a noise......this is what it looks like.

Rod knock? - YouTube

So what's the diagnosis Doc?
 
Reply
Old Aug 22, 2011 | 04:54 PM
  #2  
wulfman's Avatar
wulfman
Posting Guru
Joined: Aug 2010
Posts: 1,924
Likes: 0
From: knox Tn
Club FTE Silver Member

I am no expert but i don't think its a rod knock. Maybe injectors they can make some funny noises , but all that white smoke could be EGR cooler blew and maybe dumping water in intake , then you can guess where it goes next. JMO
 
Reply
Old Aug 22, 2011 | 04:56 PM
  #3  
wulfman's Avatar
wulfman
Posting Guru
Joined: Aug 2010
Posts: 1,924
Likes: 0
From: knox Tn
Club FTE Silver Member

Oh does the smoke have a coolant smell or does it smell like fuel.
 
Reply
Old Aug 22, 2011 | 05:07 PM
  #4  
The Boss's Avatar
The Boss
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 35
Likes: 0
He dropped it at the dealer and they replaced the EGR cooler & the pump. But the noise is the same and the smoke is still there - same as when he was driving. Under load the noise goes away, when he takes his foot off the pedal & coasts or idles it comes back.

He put around 200 miles on it like this - I don't see any rod flopping around for that long without seizing the motor. What else could it be?
 
Reply
Old Aug 22, 2011 | 05:08 PM
  #5  
The Boss's Avatar
The Boss
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 35
Likes: 0
He's going to stop at the dealership tonight and check the smell.
 
Reply
Old Aug 22, 2011 | 05:15 PM
  #6  
ljutic ss's Avatar
ljutic ss
Posting Guru
Joined: Apr 2008
Posts: 2,392
Likes: 1
From: Green Lane, Pa.
Could be an injector knocking, tell him to check the dip stick for an increased level of oil which could be diesel fuel building up.
 
Reply
Old Aug 22, 2011 | 05:32 PM
  #7  
cheezit's Avatar
cheezit
Post Fiend
15 Year Member
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
Club FTE Silver Member

sounds like a broken rocker to me...
 
Reply
Old Aug 22, 2011 | 06:05 PM
  #8  
The Boss's Avatar
The Boss
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 35
Likes: 0
Just a coincidence they both happened on the same trip? or would one trigger the other?
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Aug 22, 2011 | 06:06 PM
  #9  
cheezit's Avatar
cheezit
Post Fiend
15 Year Member
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
Club FTE Silver Member

get enugh water in a cyclinder and things can happen
 
Reply
Old Aug 22, 2011 | 06:42 PM
  #10  
2006powerstroke90's Avatar
2006powerstroke90
Logistics Pro
Joined: Nov 2010
Posts: 3,673
Likes: 6
Excuse my ignorance...The dealer Fixed the EGR cooler...what pump?

Anyways, they let it go back out with it still smoking and knocking?

Could it be possible, the injector tip broke off? and its slapping around in there?

Here is a video of my injector knock......

Notice the smoke, my egr cooler was also bad, and 2 injectors went at the same time..Doesnt knock as long as yours, but you can hear the sound


This is what my 2 bad injectors looked like obviously extremely black and you cant even see the colors of the o rings anymore
 
Reply
Old Aug 22, 2011 | 06:51 PM
  #11  
cheezit's Avatar
cheezit
Post Fiend
15 Year Member
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
Club FTE Silver Member

fuel knock is also possible though.
 
Reply
Old Aug 22, 2011 | 07:39 PM
  #12  
The Boss's Avatar
The Boss
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 35
Likes: 0
The dealer hasn't let it go yet, they want to get more money out of him first!

The knock is steady, like you heard but the smoke is just like yours and when I just spoke to him he said the exhaust smells like fuel, not sweet like anti-freeze.
 
Reply
Old Aug 23, 2011 | 01:29 AM
  #13  
matty169's Avatar
matty169
Elder User
Joined: Dec 2005
Posts: 604
Likes: 3
Cracked nozzle......

When you rev it up to about 2-2.5k does the knock sound better? You have a cracked/broken nozzle. I will bet on it. And if I am correct and he is driving it, he WILL melt a piston if he hasnt already. Unscrew the oil fill cap at idle. Got pressure coming out??? Puff, puff, pufff,???? Thats bad.
 
Reply
Old Aug 23, 2011 | 05:40 PM
  #14  
The Boss's Avatar
The Boss
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 35
Likes: 0
Is there a way to test the injectors?

Is it likely an injector would fail as a result of the EGR cooler failure?
 
Reply
Old Aug 23, 2011 | 08:24 PM
  #15  
The Boss's Avatar
The Boss
Thread Starter
|
Freshman User
Joined: Oct 2007
Posts: 35
Likes: 0
Originally Posted by matty169
When you rev it up to about 2-2.5k does the knock sound better? You have a cracked/broken nozzle. I will bet on it. And if I am correct and he is driving it, he WILL melt a piston if he hasnt already. Unscrew the oil fill cap at idle. Got pressure coming out??? Puff, puff, pufff,???? Thats bad.
He said when he took off the oil fill cap there wasn't any puffing - just revving the engine only made the knock go faster - it didn't go away. It did go away under load when he was on the highway the other night however.
 
Reply



All times are GMT -5. The time now is 05:14 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE