Another Newbie Type Question
Thread Starter
|
More Turbo
Joined: Jun 2017
Posts: 731
Likes: 15
From: Arizona
Another Newbie Type Question
Sorry, I should have said "questions." 
I was hauling my 5th wheel and going up a few fairly steep grades at about 60 - 65 mph and a couple of things happened.
1. The transmission downshifted and as the rpms increased I could hear what sounded like a squeaking bearing. It wasn't exactly like that sound but similar to it and it went away when the transmission shifted again. This repeated every time the rpms went over 3000.
2. Near the top of a long grade I will hear what sounded like a fan turning on and gradually getting louder until it was a dull howling sound. As soon as I reached a leveling off place it would stop. Is this the turbo I'm hearing?
I would like to keep this truck going as long as possible because it does a great job towing my 29' Montana 5th Wheel.
One more thing. There were times when my brakes were applied heavy that it began to feel like my rotors were warped as the rig would shutter or pulse rapidly while coming to a stop. Could this be ABS related?
Thanks,
Jim
I was hauling my 5th wheel and going up a few fairly steep grades at about 60 - 65 mph and a couple of things happened.
1. The transmission downshifted and as the rpms increased I could hear what sounded like a squeaking bearing. It wasn't exactly like that sound but similar to it and it went away when the transmission shifted again. This repeated every time the rpms went over 3000.
2. Near the top of a long grade I will hear what sounded like a fan turning on and gradually getting louder until it was a dull howling sound. As soon as I reached a leveling off place it would stop. Is this the turbo I'm hearing?
I would like to keep this truck going as long as possible because it does a great job towing my 29' Montana 5th Wheel.
One more thing. There were times when my brakes were applied heavy that it began to feel like my rotors were warped as the rig would shutter or pulse rapidly while coming to a stop. Could this be ABS related?
Thanks,
Jim
Fleet Mechanic
Joined: Nov 2009
Posts: 1,382
Likes: 193
From: Cambs, England
The second sound is almost certainly the fan, the viscous coupling comes in with heat & generally making a long steep grade is the only time I've ever heard mine, the first sound could be turbo or a boost leak?
Postmaster
Joined: Nov 2015
Posts: 4,807
Likes: 125
From: Colorado Springs
Sorry, I should have said "questions."
I was hauling my 5th wheel and going up a few fairly steep grades at about 60 - 65 mph and a couple of things happened.
1. The transmission downshifted and as the rpms increased I could hear what sounded like a squeaking bearing. It wasn't exactly like that sound but similar to it and it went away when the transmission shifted again. This repeated every time the rpms went over 3000.
2. Near the top of a long grade I will hear what sounded like a fan turning on and gradually getting louder until it was a dull howling sound. As soon as I reached a leveling off place it would stop. Is this the turbo I'm hearing?
I would like to keep this truck going as long as possible because it does a great job towing my 29' Montana 5th Wheel.
One more thing. There were times when my brakes were applied heavy that it began to feel like my rotors were warped as the rig would shutter or pulse rapidly while coming to a stop. Could this be ABS related?
Thanks,
Jim
I was hauling my 5th wheel and going up a few fairly steep grades at about 60 - 65 mph and a couple of things happened.
1. The transmission downshifted and as the rpms increased I could hear what sounded like a squeaking bearing. It wasn't exactly like that sound but similar to it and it went away when the transmission shifted again. This repeated every time the rpms went over 3000.
2. Near the top of a long grade I will hear what sounded like a fan turning on and gradually getting louder until it was a dull howling sound. As soon as I reached a leveling off place it would stop. Is this the turbo I'm hearing?
I would like to keep this truck going as long as possible because it does a great job towing my 29' Montana 5th Wheel.
One more thing. There were times when my brakes were applied heavy that it began to feel like my rotors were warped as the rig would shutter or pulse rapidly while coming to a stop. Could this be ABS related?
Thanks,
Jim
1) Are you taking the OD off climbing grades at those speeds? Not sure what elevation you are at out there, but when I am climbing UTE or Wilkerson Pass here in Colorado I ALWAYS take OD off and keep my RPM’s up to control EGT’s. It does sound like your turbo whistle.
2) Definitely sounds like your cooling fan kicking on, that definitely makes a racket when it’s on.
Thread Starter
|
More Turbo
Joined: Jun 2017
Posts: 731
Likes: 15
From: Arizona
Thanks guys.
I don't believe the belt is slipping. So if the turbo is making that noise is it normal or do I need to start looking at replacing something?
Yes and no on the OD. When I remember I turn it off but sometimes it just shifts off itself when I press down on the pedal.
Is the cooling fan for the transmission?
I don't believe the belt is slipping. So if the turbo is making that noise is it normal or do I need to start looking at replacing something?
Yes and no on the OD. When I remember I turn it off but sometimes it just shifts off itself when I press down on the pedal.
Is the cooling fan for the transmission?
Trending Topics
Postmaster
Joined: Nov 2015
Posts: 4,807
Likes: 125
From: Colorado Springs
Thanks guys.
I don't believe the belt is slipping. So if the turbo is making that noise is it normal or do I need to start looking at replacing something?
Yes and no on the OD. When I remember I turn it off but sometimes it just shifts off itself when I press down on the pedal.
Is the cooling fan for the transmission?
I don't believe the belt is slipping. So if the turbo is making that noise is it normal or do I need to start looking at replacing something?
Yes and no on the OD. When I remember I turn it off but sometimes it just shifts off itself when I press down on the pedal.
Is the cooling fan for the transmission?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Fleet Mechanic
Joined: Jul 2010
Posts: 1,753
Likes: 34
From: Los Angeles, Ca.
#1 is questionable. Could be belt slippage, turbo, or something else.
#2 is probably just the fan clutch engaging, totally normal.
#3 brake rotors can temporarily warp when hot then go back to normal. Start by checking the jug nut torque, loosen them a hair and tighten to spec. I think the current spec is around 160Ft. Lbs., but check on that.
#2 is probably just the fan clutch engaging, totally normal.
#3 brake rotors can temporarily warp when hot then go back to normal. Start by checking the jug nut torque, loosen them a hair and tighten to spec. I think the current spec is around 160Ft. Lbs., but check on that.
Cargo Master
Joined: Aug 2003
Posts: 2,332
Likes: 442
From: Eastern Washington
Jim, do you have a chip or is your truck stock?
When I had the stock turbo and a tune it would experience turbo surge/stall. We called it the turkey.
Does the chirp you are referring to sound like a turkey gobble?
When I had the stock turbo and a tune it would experience turbo surge/stall. We called it the turkey.
Does the chirp you are referring to sound like a turkey gobble?
Cargo Master
Joined: Aug 2009
Posts: 2,137
Likes: 13
From: Glendive, MT
1) It's hard to diagnose from here but I would build a boost leak detector and check for leaks. While you have the intake tube off for this, check the turbo for play.
2) Engine cooling fan clutch engaging. Normal.
3) Brake rotors beginning to warp. When towing, try to anticipate stops and start slowing early like a semi. Minimize the use of brakes. Actually a good practice when not towing as well.
2) Engine cooling fan clutch engaging. Normal.
3) Brake rotors beginning to warp. When towing, try to anticipate stops and start slowing early like a semi. Minimize the use of brakes. Actually a good practice when not towing as well.
Thread Starter
|
More Turbo
Joined: Jun 2017
Posts: 731
Likes: 15
From: Arizona
No chip. Stock configuration.
Thread Starter
|
More Turbo
Joined: Jun 2017
Posts: 731
Likes: 15
From: Arizona
1) It's hard to diagnose from here but I would build a boost leak detector and check for leaks. While you have the intake tube off for this, check the turbo for play.
2) Engine cooling fan clutch engaging. Normal.
3) Brake rotors beginning to warp. When towing, try to anticipate stops and start slowing early like a semi. Minimize the use of brakes. Actually a good practice when not towing as well.
2) Engine cooling fan clutch engaging. Normal.
3) Brake rotors beginning to warp. When towing, try to anticipate stops and start slowing early like a semi. Minimize the use of brakes. Actually a good practice when not towing as well.
Thread
Thread Starter
Forum
Replies
Last Post
guitarpicr
1999 - 2003 7.3L Power Stroke Diesel
5
May 21, 2012 03:38 PM
medici78
6.0L Power Stroke Diesel
5
Jun 25, 2005 07:31 PM