FShearer
Member
This noise started when backing into my driveway with wheel turned to the right. Noise continues going forward, but then seems to go away. Already replaced front CV shaft and the noise continues. Anyone have any ideas?
2015 front end noise (video attached)
- Thread starter FShearer
- Start date
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Noise going forward sounds like the tire rubbing against the strut/spring.
Noise going backward scared the $&it out of me...
Why did you replace the CV axle? With the car on the ground, get under and look for anything to close to the tire and axle boots.
Noise going backward scared the $&it out of me...
Why did you replace the CV axle? With the car on the ground, get under and look for anything to close to the tire and axle boots.
yaycandy
Aerospace Engineer
Sounds like suspension or steering is binding, need more info then just a video. Like how is it when turning compared to driving straight and when it hits bumps. Best thing to do and fastest and easiest is to take it to Ford. A higher cost to have it fixed in a couple days is better than a lower cost and it sitting for months and figuring it out on your own without equipment.
The tire squeak noise is similar to what noise i got for a month after doing a complete poly bushing upgrade.
The tire squeak noise is similar to what noise i got for a month after doing a complete poly bushing upgrade.
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FShearer
Member
Noise will start when backing up and feels like the hub is trying to engage. Then going forward it will squeel/grind for a while and clear up until you back up again. I replaced the CV joint because I thought the rubbing noise could have been inside one of the boots. I will have to inspect the strut closer for rubbing. You can drive the car without any incident as long as you don't back up. I suppose this is not going to be a wheel bearing but probably in the PTU or transmission?
I agree with yaycandy. That right there Is best left for a dealership. As an owner of 3 Taurus's and 2 are are past 150,000 mark, I have some noises creep up like CV axle and some link ball joint failures, and 2 wheel bearings dying, but never have I heard that noise coming from any of them. Please keep us updated.
FShearer
Member
Got ya, thanks for the replies. Heading to transmission shop soon. I will update this when I have something.
Here is what I think:
I recall a 1982 Ford 150 I had, the front tires would turn into a very weird and worrisome angle whenever I backed up and went back to normal when driving forward again.
I wonder if your SHO is out of alignment and one of the control arm bushings is giving (flexing beyond what it should), causing the tire to rub against something (strut most likely).
Check the strut for any shiny spots or evidence of rubbing.
I recall a 1982 Ford 150 I had, the front tires would turn into a very weird and worrisome angle whenever I backed up and went back to normal when driving forward again.
I wonder if your SHO is out of alignment and one of the control arm bushings is giving (flexing beyond what it should), causing the tire to rub against something (strut most likely).
Check the strut for any shiny spots or evidence of rubbing.
FShearer
Member
I am going to be looking at the strut closer tonight and will report any findings. Also have an appointment tomorrow with a shop. 
FShearer
Member
Looked for tire rubbing on the struts while it was on the ground. Then jacked the front end up, put it in reverse, then drive and this is what I observed. If you listen carefully you can hear the squealing. Or is this normal if all 4 wheels are not off the ground?
Thoughts?
Thoughts?
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CastorTroyN7
New Member
Not exactly sure what the noise itself is, but the tire moving that way, jerky, is normal when one tire is off the ground, and you leave the traction / stability control engaged.
The car senses one of the wheels moving, when the others aren't, and assumes the car lost grip.
Turn traction control off if you want it to spin more evenly.
But, you also need to remember that it's an AWD car, so having just a single wheel off the ground and hitting the gas is a bad idea. The other three tires will get power, and the car will jump forward, taking the jack with it, or toppling the jack stand, causing more issues than the weird noise.
FShearer
Member
Both front wheels were off the ground, rear wheels were chocked and parking brake set. Traction control was off. Guess I should have got the rear wheels off ground as well but was running out of daylight.
And?
That behaviour is normal. Car senses front wheel slippage and engages the magnetic coupler going to the rear wheels. Once it engages and rear wheels can't spin (at low rpm), torque converter starts slipping, front wheels then stop, magnetic coupler opens and the cycle starts over.
If you were to accelerate more, torque converter and coupler will lock and rear wheels will push the car forward.
FShearer
Member
No wear was found while it was on the ground. Did smell a propane like smell coming from center of engine. Where physically is the magnetic coupler? Could this be making the noise?
FShearer
Member
FYI car is a Ford now waiting for a $200 diagnosis . Will update thread when I hear back.
FShearer
Member
Ford is replacing the PTU. Wish I would have known to have it serviced. Especially since I didn’t know the history of the first 50,000. Should I be replacing the gear oil every oil change? Is there anything that should be done with the rear transfer case?
Ouch. If the PTU is already shot, I would change everything including the coolant. Your baby might have been abused.
FShearer
Member
So I got the car back from Ford and there appears to be a sensor that is part of the replacement. I am assuming this is a temperature sensor for the fluid to warn you the oil needs to be replaced. Anybody have any thoughts?
Ian Bamford
New Member
Brake/ Slash guard?
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