Go Back   Ford Truck Enthusiasts Forums > Diesel > 6.4L Power Stroke Diesel
Sign in using an external account
Register Forgot Password?


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

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 04-05-2010, 04:12 PM
golfswithbeer's Avatar
golfswithbeer golfswithbeer is offline
New User
 
Join Date: Nov 2008
Posts: 12
golfswithbeer is starting off with a positive reputation.
08 Superduty whistles / squeals when accelerating over 2000 RPM's

I have noticed in the past weeks that my 2008 F250 squeals when I accelerate and the RPM is usually between 2000-2500 RPM's. If I let off or "floor" it, the squeal goes away. It is very loud, not like a belt or air whistle. I don't really notice a power performance differerance. I was thinking it could be turbo related and maybe it has more to do with the psi of the tirbo and less with the RPM's.

ANY IDEAS???? Anyone else have something similar? Warranty just expired 03/22/10.
Reply With Quote
  #2  
Old 04-05-2010, 07:00 PM
senix's Avatar
senix senix is online now
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 21,056
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
have you checked your belts and pulley's to be sure everything is tight? That is about the only thing I would think it is.

You can check your CAC hoses and make they are tight as well.
__________________
Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400; 2015 Lincoln MKC
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
Reply With Quote
  #3  
Old 04-05-2010, 07:45 PM
kane gray's Avatar
kane gray kane gray is offline
Senior User
 
Join Date: Aug 2007
Posts: 199
kane gray is starting off with a positive reputation.
Exhaust leak. Which unfortunately could mean cab off repair.
Reply With Quote
  #4  
Old 04-05-2010, 08:26 PM
LaxPlaya21's Avatar
LaxPlaya21 LaxPlaya21 is offline
Posting Guru
 
Join Date: Mar 2006
Location: Long Island, NY
Posts: 1,087
LaxPlaya21 has a very good reputation on FTE.LaxPlaya21 has a very good reputation on FTE.LaxPlaya21 has a very good reputation on FTE.LaxPlaya21 has a very good reputation on FTE.
Quote:
Originally Posted by kane gray View Post
Exhaust leak. Which unfortunately could mean cab off repair.
I wouldn't think a leak, beacause he said when he floors it it goes away. If it was a leak, I would think the whistle would get louder with more pressure...

Just speculating here, but maybe a turbo bearing? That is what happened in my 6.0. It would make this whisteling sound... needless to say I had the turbo rebuilt.
Reply With Quote
  #5  
Old 04-05-2010, 10:50 PM
hunter08 hunter08 is offline
Freshman User
 
Join Date: Jan 2008
Posts: 47
hunter08 is starting off with a positive reputation.
Mine was doing the same thing and found out it was the down pipe/y-pipe.See if it does it especially after sitting at an idle for a few moments then it gets loud when you pull out.Mine was stretching at gasket when idling and did not do it when moving.If this is it they will have it for a day.No cab off but a tranny drop.I thought it was my torbo at first.Hope this helps
Reply With Quote
  #6  
Old 04-05-2010, 10:52 PM
hunter08 hunter08 is offline
Freshman User
 
Join Date: Jan 2008
Posts: 47
hunter08 is starting off with a positive reputation.
Sorry i didn't put it was the exhaust.And i miss spelled turbo!
Reply With Quote
  #7  
Old 04-06-2010, 09:26 AM
golfswithbeer's Avatar
golfswithbeer golfswithbeer is offline
New User
 
Join Date: Nov 2008
Posts: 12
golfswithbeer is starting off with a positive reputation.
I don't think it is a belt issue. All belts seem tight. It only happens when accelerating and it has become worse over the past week. At first I thought a simple hose leak but now it is loud! When I accelerate, everyone stares at the noise and it is not a "pretty" whistling noise but more of a loud high pitch squeal. I think maybe turbo bearings but I was hoping someone else had similar issues. It only has 32,000 miles. My first Ford and I am a little taken back if the turbo has already gone bad.
Reply With Quote
  #8  
Old 04-06-2010, 10:00 AM
senix's Avatar
senix senix is online now
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 21,056
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 to make sure the coolant in the fuel/turbo cooler has coolant in it and is full and looks good in color.
__________________
Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400; 2015 Lincoln MKC
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
Reply With Quote
  #9  
Old 04-06-2010, 10:06 AM
golfswithbeer's Avatar
golfswithbeer golfswithbeer is offline
New User
 
Join Date: Nov 2008
Posts: 12
golfswithbeer is starting off with a positive reputation.
I just had it in for an oil change 2-3 weeks ago and I would think that the dealership would have checked that???? I see no leaks from the hoses/clamps for the turbo cooler.
Reply With Quote
  #10  
Old 04-06-2010, 12:39 PM
kane gray's Avatar
kane gray kane gray is offline
Senior User
 
Join Date: Aug 2007
Posts: 199
kane gray is starting off with a positive reputation.
It really sounds to me like an exhaust leak.
Reply With Quote
  #11  
Old 04-06-2010, 12:56 PM
golfswithbeer's Avatar
golfswithbeer golfswithbeer is offline
New User
 
Join Date: Nov 2008
Posts: 12
golfswithbeer is starting off with a positive reputation.
Quote:
Originally Posted by kane gray View Post
It really sounds to me like an exhaust leak.
Wouldn't an exhaust leak be continuous?? This is only when mildly accelerating. Once I reach 55 or so and I am just cruising, you can not hear it at all. You also can't hear if you take off real easy or take off real hard. It is only when normal acceleration is happening.
Reply With Quote
  #12  
Old 04-06-2010, 08:09 PM
hunter08 hunter08 is offline
Freshman User
 
Join Date: Jan 2008
Posts: 47
hunter08 is starting off with a positive reputation.
That sounds just like mine did.Have the dealer check the down y-pipe.Maybe the same thing good luck!
Reply With Quote
  #13  
Old 04-08-2010, 12:02 AM
SANDDEMON08's Avatar
SANDDEMON08 SANDDEMON08 is offline
Posting Guru
 
Join Date: Jun 2007
Location: Henderson, NV
Posts: 1,309
SANDDEMON08 has a very good reputation on FTE.SANDDEMON08 has a very good reputation on FTE.SANDDEMON08 has a very good reputation on FTE.SANDDEMON08 has a very good reputation on FTE.
Quote:
Originally Posted by golfswithbeer View Post
I have noticed in the past weeks that my 2008 F250 squeals when I accelerate and the RPM is usually between 2000-2500 RPM's. If I let off or "floor" it, the squeal goes away. It is very loud, not like a belt or air whistle. I don't really notice a power performance differerance. I was thinking it could be turbo related and maybe it has more to do with the psi of the tirbo and less with the RPM's.

ANY IDEAS???? Anyone else have something similar? Warranty just expired 03/22/10.
Depanding wat you call a squeal the early models had a TSB reguarding coolant makeing a similar noise going thru the heater core mine did it id have to dig up the fix but i think they just slow the flow down a little to make it go away.
__________________
Got beer ? 611 HP 1205 TQ
08 F350 CC FX4, 6.4 PSD,PMF 4.5" LIFT WITH TRACTION BARS,4.30 REAR,NAV,DASH DAQ,VOLANT INTAKE,SPEARCO INTERCOOLER,STAGE III WATER/METH,67 GAL TITAN TANK,EGR DELETE,ARP HEAD STUDS,72MM LP BILLET TURBO,RCD CONVERTER,FS-2500 BYPASS FILTER, AIR DOG II FUEL PUMP,CUSTOM CCV,MAG-HYTEC TRANS PAN AND DIFF COVER, CUSTOM HD TRANS COOLER, SEIC MOD,AMP STEPS
Reply With Quote
Old 04-08-2010, 12:02 AM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Whistle Noise from Trans ~1200RPM, Need Ideas Bayou_Flyer Excursion - King of SUVs 10 03-04-2008 04:15 PM
Second Alternator installed yesterday-No whistle/squeal when cold for now... AB328 2004 - 2008 F150 13 02-09-2007 03:45 PM
Turbo Squeal (Not whistle) in stock 7.3 PSD Dsl Lover 1999 - 2003 7.3L Power Stroke Diesel 15 11-18-2006 11:56 PM
What is causing the squeal from the undercarriage??? sa_rains Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 19 12-04-2005 12:39 AM
whistle at highway speed davemg66 1987 - 1996 F150 & Larger F-Series Trucks 5 03-02-2004 12:04 PM


Go Back   Ford Truck Enthusiasts Forums > Diesel > 6.4L Power Stroke Diesel

Tags
1999, 2000, 2008, 73, accelerating, diesel, engine, f350, ford, noise, past, rpm, rpms, squeak, whistles, whistling

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 10:16 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
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. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup