Tranny Problem?
Thread Starter
|
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
Tranny Problem?
I have an '06 F150 SCREW 4x4 5.4L. Just developed a problem. Left home last night and after about 3.5 miles heard a terrible noise, kind of like metal dragging on the road or metal in spinning/shaking around inside a container. It continues until I brake and slow down to ~10mph. At that point it's like something grabs and the noise disappears. I drove it on another ~12 miles without issue.
This morning on the way to church, it did the same at ~4 miles. And again at ~5 miles on the way home. The noise is awful.
Sounds like it is coming from the transmission area. The last time it happened I tried to accerlate to see if I had power and everything seemed normal (except the loud noise). Could this be an issue with the torque converter?
This morning on the way to church, it did the same at ~4 miles. And again at ~5 miles on the way home. The noise is awful.
Sounds like it is coming from the transmission area. The last time it happened I tried to accerlate to see if I had power and everything seemed normal (except the loud noise). Could this be an issue with the torque converter?
Postmaster
Joined: Aug 2003
Posts: 2,873
Likes: 0
From: St. Peter
Tooldad,
Does the noise change pitch with RPM, Vehicle Speed, or transmission gear? I hope its something as simple as an issue with your brakes or something. However I hear these transmissions are easy to tear apart.
Maybe next time you hear the noise, put the truck in neutral and see if the noise disappears.
Does the noise change pitch with RPM, Vehicle Speed, or transmission gear? I hope its something as simple as an issue with your brakes or something. However I hear these transmissions are easy to tear apart.
Maybe next time you hear the noise, put the truck in neutral and see if the noise disappears.
Thread Starter
|
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
Does not change with engine speed. Did not try different gears. Definitely not a brake issue. Not sure if dealer is open tomorrow. If so I will take it there. Other info, the vehicle has ~82k miles. Never had an issue.
Postmaster
Joined: Aug 2003
Posts: 2,873
Likes: 0
From: St. Peter
tooldad, I dont think the Ford dealers are open tommorow. I am actually doing an internship at the Ford tech hotline here in dearborn (the place the tech's call if they get stumped) and we are closed tommorow. Ironically I am on the transmission team down there, and am learning alot.
If it was a Torque converter issue, I would expect it to change with engine RPM moreso than vehicle speed. So it is either something driveline releated, or something internal to your transmission.
Some good things to check would be tranny fluid level and quality, and also if you can pinpoint where the noise is coming from that would be helpful. Or you can just take it to the Ford Dealer, and see what they say.
I would be more inclined to suspect something with your 4x4 system or IWE actuators from what you have described. However anything is possible
Good luck, and I hope it is nothing too expensive.
If it was a Torque converter issue, I would expect it to change with engine RPM moreso than vehicle speed. So it is either something driveline releated, or something internal to your transmission.
Some good things to check would be tranny fluid level and quality, and also if you can pinpoint where the noise is coming from that would be helpful. Or you can just take it to the Ford Dealer, and see what they say.
I would be more inclined to suspect something with your 4x4 system or IWE actuators from what you have described. However anything is possible
Good luck, and I hope it is nothing too expensive.
Thread Starter
|
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
I will take it for another spin and do some other checks assuming it acts up again. I am just hoping the issue is easily identifiable by the Ford techs and that my extended coverage covers it. Will let you know if I find anything further. Thanks.
Postmaster
Joined: Aug 2003
Posts: 2,873
Likes: 0
From: St. Peter
Roller 150, you and I are on the same thought train...
Under accelration the engine vacuum decreases, and the hub tries to engage. Slow down and the engine vacuum increases and the hub is disengaged
Tooldad, one easy check you can do is put your truck in 4x4. This will cut off all vacuum to your hubs and if the noise goes away, then bingo you know your problem
Under accelration the engine vacuum decreases, and the hub tries to engage. Slow down and the engine vacuum increases and the hub is disengaged
Tooldad, one easy check you can do is put your truck in 4x4. This will cut off all vacuum to your hubs and if the noise goes away, then bingo you know your problem
Trending Topics
Thread Starter
|
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
Bingo! Drove it again this morning. About 1.5 miles and it made the noise again. Flipped the 4xHi switch and it went away. About 6 miles later it did it again (not accerlating at the time), and flipping the 4XHi sitch again stopped the noise. Going by the dealership parts department tomorrow. Thanks!
Last edited by tooldad; May 31, 2010 at 01:35 PM. Reason: spelling
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Elder User
Joined: Jul 2008
Posts: 554
Likes: 1
From: Newport, Wa.
Tooldad, don't run out and start buying a bunch of parts yet. Find the thread on here "everything you wanted to know about the IWE system". You need to diagnose exactly where your loosing vacuum. Or just take in in and have the techs fix it. But just don't start throwing parts at it.
Postmaster
Joined: Aug 2003
Posts: 2,873
Likes: 0
From: St. Peter
Good to hear there tooldad. Like oldguy4 said, that does not pinpoint it down to the IWE actuators. It could be something as simple as an unplugged vacuum line, leaky check valves, or a leaky vacuum solenoid.
Simple thing to check so just turn your wheel all the way to one side and go and take a look to make sure that line is not disconnected at the wheel.
Here is a link to the TSB for your reading pleasure 06-8-15***INTERMITTENT IWE NOISE, 4WDH LIGHT AND/OR 4X4 SYSTEM INOPERATIVE, DTCS - C1979 AND C1980
It applies to 2004-2006 vehicles.
If you want to get really hands on, take a vacuum pump, and pull a vacuum on each wheel end to observe that it holds vacuum. Be sure to pull a vacuum on the vacuum side, not the vent. The vacuum will be the larger port. If they hold vacuum and disengage then bingo, you know you have an issue elsewhere in the system. I know there was an issue with the IWE solenoid as well, and a TSB was issued, where it would short out due to water damage.
Simple thing to check so just turn your wheel all the way to one side and go and take a look to make sure that line is not disconnected at the wheel.
Here is a link to the TSB for your reading pleasure 06-8-15***INTERMITTENT IWE NOISE, 4WDH LIGHT AND/OR 4X4 SYSTEM INOPERATIVE, DTCS - C1979 AND C1980
It applies to 2004-2006 vehicles.
If you want to get really hands on, take a vacuum pump, and pull a vacuum on each wheel end to observe that it holds vacuum. Be sure to pull a vacuum on the vacuum side, not the vent. The vacuum will be the larger port. If they hold vacuum and disengage then bingo, you know you have an issue elsewhere in the system. I know there was an issue with the IWE solenoid as well, and a TSB was issued, where it would short out due to water damage.
Thread Starter
|
Elder User
Joined: Jan 2007
Posts: 547
Likes: 0
Yesterday, and intermittent problems often do, it did not surface during my work commute. Decided that parts are cheap relative to labor, so proceeded with replacing the solenoid. Turns out my truck was produced in 5/06 (after solenoid change) and thus had the new improved solenoid & bracket. Replaced anyway. The hoses were firmly connected at the solenoid and at both IWE's. I disconnected the hoses at the IWE to check for water, but nothing. Have driven approximately 25 miles thus far today with no know issue. Time will tell I suppose. I plan to post a couple of pics in my gallery later.
Thread
Thread Starter
Forum
Replies
Last Post
dstrahm
1997 - 2006 Expedition & Navigator
3
Aug 26, 2011 05:50 PM
