Low compression/dead cylinder guys come on in - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 10-09-2013, 11:27 AM Thread Starter
Member
 
2010KR350's Avatar
 
Join Date: Apr 2013
Posts: 72
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Low compression/dead cylinder guys come on in

Alright guys, latley my 2010 with mods in the sig 57k miles has developed that "thop thop thop" sound at idle. I know that is somewhat normal for these trucks but it seems a bit excessive. I am trying to diagnose it..

No burnt oil
No white smoke
No extra oil
No miss
No power loss
No hard start

I may be over thinking it but you can even here it when throttling. Noticed a couple days after the EGR delete. Hear it through the filter and tail pipe through the cab. Doesn't do it until it has been warmed up for 10 or so miles. The harder/longer the drives the louder it is. I know you lose compression once warmed up. Trying to avoid doing a compression test or going to the dealer.

Thoughts?

Thanks in advance.

2010 F350 CCLB King Ranch. Mini Maxx Race - CAC Pipe - DPF MIA - Sinister Coolant Filter - Sinister EGR Delete - No Limit Intake - Custom CCV mod using stock parts - Devils Own W/M

13.01 @ 103
2010KR350 is offline  
post #2 of 5 Old 10-11-2013, 08:30 AM
Member
 
Join Date: Oct 2008
Posts: 39
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Get a compression test first... then put the truck back to stock take back to dealer lol...
Jon5212 is offline  
post #3 of 5 Old 11-15-2013, 08:14 PM
Huge Mythical Beast!!
 
LoxDiesel's Avatar
 
Join Date: Jan 2009
Location: Almost to the Muck but not quite
Posts: 3,404
Thanks: 93
Thanked 209 Times in 200 Posts
Mentioned: 19 Post(s)
Quoted: 211 Post(s)
Feedback Score: 0 reviews
You said its coming from intake or exhaust? Take breather off and fire it up. If its obnoxiously loud might have gotten a piece of trash in intake somehow during reassembly. That happened to me once. It tweaked an intake valve just barely to where it wouldn't seat
LoxDiesel is offline  
post #4 of 5 Old 11-16-2013, 03:10 AM
Powerstroke.org Rookie
 
Join Date: Apr 2012
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
So no symptoms other than a noise? Can you post a video so we can hear the noise?
Ambulance39 is offline  
post #5 of 5 Old 11-17-2013, 06:01 AM
Huge Mythical Beast!!
 
LoxDiesel's Avatar
 
Join Date: Jan 2009
Location: Almost to the Muck but not quite
Posts: 3,404
Thanks: 93
Thanked 209 Times in 200 Posts
Mentioned: 19 Post(s)
Quoted: 211 Post(s)
Feedback Score: 0 reviews
Also ive seen exhaust seats crack. Just a heads up

@loxdce
LoxDiesel is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome