high pitch squeal from under the hood.....turbo? - Ford Truck Enthusiasts Forums



6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis SPONSORED BY:

high pitch squeal from under the hood.....turbo?

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-07-2010, 05:38 PM
battleson battleson is offline
New User
Thread Starter
 
Join Date: May 2010
Posts: 10
battleson is starting off with a positive reputation.
high pitch squeal from under the hood.....turbo?

ok i have a question........the last 500 km i have been getting a high pitched squeal coming from the engine compartment it happens usually from around 20-30 psi boost and 2000-2200 rpms especially if the engine is not at full temp which usually runs at 188-194......it does make the noise at highway speeds but not as bad at lower speeds......it sorta sounds like a belt squeal or pully bearing squeal but it is not consistant.......the engine has 110,000 km on it.......anyone have any idea what this could be or has had similar problems?
Reply With Quote
  #2  
Old 09-07-2010, 07:55 PM
senix's Avatar
senix senix is online now
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 26,440
senix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputation
check your idler pully for dry bearings.
Reply With Quote
  #3  
Old 09-07-2010, 10:27 PM
bnmccoy's Avatar
bnmccoy bnmccoy is offline
Elder User
 
Join Date: Aug 2004
Location: Edmond, OK
Posts: 932
bnmccoy is gaining momentum as a positive member of FTE.bnmccoy is gaining momentum as a positive member of FTE.
On the 6.0's with a blown head gasket you could get a squeal as the combustion pressure entered the coolant system and exited through the coolant pressure cap; usually under moderate to high boost. I would not consider it high frequency but a lower tone squeal...... similiar to low speed bushing, etc.......

Haven't heard of 6.4's having this problem but if you have also been losing coolant; or a tuner in the equation.......

Bob
Reply With Quote
  #4  
Old 09-07-2010, 10:33 PM
battleson battleson is offline
New User
Thread Starter
 
Join Date: May 2010
Posts: 10
battleson is starting off with a positive reputation.
no i havnt lost any coolant or anything like that........i guess i am gonna have to check my bearing on pully's and start that way first then move onto other things
Reply With Quote
  #5  
Old 09-07-2010, 10:33 PM
fordsd350's Avatar
fordsd350 fordsd350 is offline
Senior User
 
Join Date: Mar 2008
Location: Minnesota
Posts: 163
fordsd350 is starting off with a positive reputation.
Not an expert, but I second the idler pulley.

Your description sounds about like what I had happening. Turned out to be the idler pulley. I believe there's a TSB out there for the 6.4L concerning this problem. Sorry, don't know the number.
Reply With Quote
  #6  
Old 09-07-2010, 11:32 PM
kper05's Avatar
kper05 kper05 is offline
Post Fiend
 
Join Date: Jan 2010
Location: AL
Posts: 5,335
kper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant futurekper05 has a brilliant future
Quote:
Originally Posted by fordsd350 View Post
Not an expert, but I second the idler pulley.

Your description sounds about like what I had happening. Turned out to be the idler pulley. I believe there's a TSB out there for the 6.4L concerning this problem. Sorry, don't know the number.
Not that it's cold outside yet (although it was in the 40's in Colorado Springs this morning on the way to the airport) but maybe this is the TSB?
http://www.ford-trucks.com/forums/81...ml#post7098031
Reply With Quote
  #7  
Old 09-08-2010, 06:00 AM
senix's Avatar
senix senix is online now
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 26,440
senix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputation
Quote:
Originally Posted by kper05 View Post
Not that it's cold outside yet (although it was in the 40's in Colorado Springs this morning on the way to the airport) but maybe this is the TSB?
http://www.ford-trucks.com/forums/81...ml#post7098031
That is the correct TSB.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Under The Hood High Pitched Squeal nsboyd1210 Excursion - King of SUVs 5 08-17-2014 10:57 AM
Squeal like a pig madeenre 1999 to 2016 Super Duty 2 07-13-2014 10:11 AM
1997 Ford F150 4.2L...Unknown Squeal jjirvine 1997 - 2003 F150 11 06-30-2013 06:07 PM
Power Steering Squeal Alcaeus 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 17 07-27-2012 04:46 PM
high pitch squeal, nat the belts. What could it be? jonboysranger Ranger & B-Series 10 07-27-2010 08:37 PM


Go Back   Ford Truck Enthusiasts Forums >

Tags
08, 64, 64l, cooling, diesel, escape, f350, ford, high, low, pitch, pitched, powerstroke, speed, squal, squeal, squealing, system, turbo

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -5. The time now is 09:37 PM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.