Ford Truck Enthusiasts Forums

Notices
Modular V10 (6.8l)  

What the heck?

Thread Tools
 
Search this Thread
 
Old Apr 13, 2016 | 09:05 AM
Share
  #1  
critterf1's Avatar
critterf1
Thread Starter
|
Posting Guru
Joined: Feb 2010
Posts: 2,057
Likes: 2
From: Newport, N.C.
What the heck?
I have a 2000 V10 with the most awful spark knock you've ever heard. Fuel pressure within spec and exhaust has no restriction. Knock sensors ever go bad?
 
Reply
0
Old Apr 13, 2016 | 09:42 AM
Share
  #2  
harley4jcs's Avatar
harley4jcs
Posting Guru
Joined: Aug 2012
Posts: 1,678
Likes: 1
From: Central Tx.
Originally Posted by critterf1
I have a 2000 V10 with the most awful spark knock you've ever heard. Fuel pressure within spec and exhaust has no restriction. Knock sensors ever go bad?
I'm not sure what you mean by spark knock BUT is it possible it may be trying to spit out a plug ??
 
Reply
0
Old Apr 13, 2016 | 09:50 AM
Share
  #3  
critterf1's Avatar
critterf1
Thread Starter
|
Posting Guru
Joined: Feb 2010
Posts: 2,057
Likes: 2
From: Newport, N.C.
No it's not trying to spit a plug. They're new and seated properly. Detonation is what I'm talking about. Pinging
 
Reply
0
Old Apr 13, 2016 | 09:51 AM
Share
  #4  
critterf1's Avatar
critterf1
Thread Starter
|
Posting Guru
Joined: Feb 2010
Posts: 2,057
Likes: 2
From: Newport, N.C.
No codes present and it does it regardless of brand of fuel or octane used.
 
Reply
0
Old Apr 13, 2016 | 09:58 AM
Share
  #5  
BroncoRN's Avatar
BroncoRN
Laughing Gas
10 Year Member
Joined: Oct 2012
Posts: 1,219
Likes: 5
Could be knock sensor. Do you have a chip/tune on it? Air filter clean? Fuel filter good? Anything you can think of that would make it run lean?
 
Reply
0
Old Apr 13, 2016 | 11:05 AM
Share
  #6  
harley4jcs's Avatar
harley4jcs
Posting Guru
Joined: Aug 2012
Posts: 1,678
Likes: 1
From: Central Tx.
Originally Posted by critterf1
No it's not trying to spit a plug. They're new and seated properly. Detonation is what I'm talking about. Pinging
Those are 2 terms I DO understand & the only ways that I know they can be caused is by ,the timing being too advanced, Engine under severe load with the crap they sell as gas now a days,Or using a low octane fuel in a high octane required engine....
 
Reply
0
Old Apr 13, 2016 | 11:41 AM
Share
  #7  
weeeves's Avatar
weeeves
Senior User
Joined: Apr 2015
Posts: 173
Likes: 0
I'm not familiar with the V10's, but do they have VVT (Variable Valve Timing)? My Lincoln had the worst pinging I've ever heard at full throttle which was due to a bad VCT solenoid. It took me awhile to track it down. Disconnecting the VCT solenoid eliminated the pinging completely.
 
Reply
0

Trending Topics

Old Apr 13, 2016 | 01:03 PM
Share
  #8  
WE3ZS's Avatar
WE3ZS
Moderator
15 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2010
Posts: 12,051
Likes: 1,549
From: Media PA
Club FTE Gold Member
Is the pinging accompanied by a loss of power, especially at higher RPMs? If so it could be a clogged catalytic convertor, checking the pressure at a pre-cat O2 sensor will be the best check.
 
Reply
0
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-1

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-2

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-3

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-4

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

 Brett Foote
story-5

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

 Michael S. Palmer
story-6

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

 Verdad Gallardo
story-7

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-8

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

 Brett Foote
story-9

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

 Michael S. Palmer
Old Apr 13, 2016 | 01:20 PM
Share
  #9  
Stewart_H's Avatar
Stewart_H
Super Moderator
20 Year Member
Liked
Loved
Community Favorite
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Club FTE Gold Member
Moved over to the V10, 6.8L modular engine forum.

Stewart
 
Reply
0
Old Apr 13, 2016 | 02:23 PM
Share
  #10  
critterf1's Avatar
critterf1
Thread Starter
|
Posting Guru
Joined: Feb 2010
Posts: 2,057
Likes: 2
From: Newport, N.C.
Severe loss of power. Installed my back pressure gauge in up-stream O2 bung, readings are normal. Any thing above 1/2 throttle is terrible.
 
Reply
0
Old Apr 13, 2016 | 02:28 PM
Share
  #11  
High Cetane's Avatar
High Cetane
Tuned
10 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jun 2013
Posts: 390
Likes: 0
From: Taking a nap
Originally Posted by critterf1
They're new and seated properly. Detonation is what I'm talking about. Pinging
Did this symptom occur prior to changing the plugs ?
What plugs did you install, ie: are they the correct plugs?
 
Reply
0
Old Apr 13, 2016 | 02:32 PM
Share
  #12  
truckfella's Avatar
truckfella
Elder User
Joined: Jul 2005
Posts: 974
Likes: 11
Did this issue arise at the same time the new plugs were installed? I assume not, but had to ask anyway.

Is check engine light on?

Are all cylinders detonating? Or just one or two?
 
Reply
0
Old Apr 13, 2016 | 02:43 PM
Share
  #13  
critterf1's Avatar
critterf1
Thread Starter
|
Posting Guru
Joined: Feb 2010
Posts: 2,057
Likes: 2
From: Newport, N.C.
Before new plugs, no codes and it sounds like every cylinder
 
Reply
0
Old Apr 14, 2016 | 05:20 AM
Share
  #14  
Im50fast's Avatar
Im50fast
Cargo Master
Joined: Apr 2013
Posts: 3,087
Likes: 24
From: Central Florida
Originally Posted by critterf1
Severe loss of power. Installed my back pressure gauge in up-stream O2 bung, readings are normal. Any thing above 1/2 throttle is terrible.
I had the same issue last year. Catalytic a converters bad.

Checking at the o2 bung won't find it because the back pressure is between the 1st cat and the engine.

Unbolt your exhaust. Look inside with flashlight.

Test drive with exhaust disconnected.


You'll see.
 
Reply
0
Old Apr 14, 2016 | 06:48 AM
Share
  #15  
Apocalypse's Avatar
Apocalypse
Lead Driver
10 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Nov 2012
Posts: 8,304
Likes: 28
From: Salem, VA
You never answered what plugs you swapped in. Also you might think about running non-ethanol fuel in your truck. It's all I run unless I run low and can't get to any.
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 01:54 PM.

story-0
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-05-30 18:33:59


VIEW MORE
story-1
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-2
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-3
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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