IWE issues (vacuum or front hub?) on brand new 2017 F150
01-03-2018, 02:17 PM
#21
So, based on what you're saying and since my issue is only from the front driver side wheel, it's most likely a bad hub or a vacuum leak in the hose near the wheel? The other front wheel seems just fine. No noise at all.
In other words, a bad check valve would cause failure to both front wheels simultaneously? If that's the case, then the locked hub on front driver side even when in 2A could only be caused by the hub itself that failed, correct? I guess it would also be possible that a faulty hub seal might have caused water infiltration that ended up freezing inside.
What do you think JohnDay?
In other words, a bad check valve would cause failure to both front wheels simultaneously? If that's the case, then the locked hub on front driver side even when in 2A could only be caused by the hub itself that failed, correct? I guess it would also be possible that a faulty hub seal might have caused water infiltration that ended up freezing inside.
What do you think JohnDay?
01-03-2018, 02:23 PM
#22
Senior Member
Thread Starter
I have a 2013 XLT Super Crew, 115,000 miles on it. Yes I drive a lot. My first grind was 2 years ago.. and it's been intermittent ever since. It's been doing it really badly this week. I've taken it to the shop 4 times and it will never grind when they have it. ever. The best part, it has done it for me 3 of the last 4 days.
Newest Grinding VIDEO: https://youtu.be/CYrjjeEYqZ4
I had a vacuum hose replaced 2 years ago. Ford claimed it had a tear in it. Fine. Seemed to fix the problem. I had one of the 4x4 actuators replaced about a year ago. I had a hub rebuilt 2 months ago. The sound keeps coming back. It's really frustrating that the mechanic can't diagnose a fix without it making the noise. The vacuum system is either leaking or its not? The solenoid is either broken or it's not? Rebuilding hubs isn't cheap. This seems to be a massive flaw in F-150's. When you flip it into 4x4 it stops, but you really should't drive 70mph on dry pavement in 4x4. I guess it's the luck of the draw. I've owned 3 F-150's and this is the only one that has done it. One mechanic at first blamed the leveling kit on it??? but that should have nothing to do with it.
My truck is being 'fixed' today.. a new 4x4 actuator is being put on. $160. I bet the noise comes back soon.
I'm open to suggestions. I love these F-150's,but this is so annoying it may be time to go to a different brand.
Newest Grinding VIDEO: https://youtu.be/CYrjjeEYqZ4
I had a vacuum hose replaced 2 years ago. Ford claimed it had a tear in it. Fine. Seemed to fix the problem. I had one of the 4x4 actuators replaced about a year ago. I had a hub rebuilt 2 months ago. The sound keeps coming back. It's really frustrating that the mechanic can't diagnose a fix without it making the noise. The vacuum system is either leaking or its not? The solenoid is either broken or it's not? Rebuilding hubs isn't cheap. This seems to be a massive flaw in F-150's. When you flip it into 4x4 it stops, but you really should't drive 70mph on dry pavement in 4x4. I guess it's the luck of the draw. I've owned 3 F-150's and this is the only one that has done it. One mechanic at first blamed the leveling kit on it??? but that should have nothing to do with it.
My truck is being 'fixed' today.. a new 4x4 actuator is being put on. $160. I bet the noise comes back soon.
I'm open to suggestions. I love these F-150's,but this is so annoying it may be time to go to a different brand.
Just like that when accelerating:
That's why I thought it was one of my turbos at first.
Last edited by Eduskator; 01-03-2018 at 02:26 PM.
01-03-2018, 02:33 PM
#23
Village Sociopath
iTrader: (1)
Join Date: Jun 2014
Location: Nowhereville Barton City Michigan
Posts: 28,535
Received 10,075 Likes
on
6,508 Posts
In other words, a bad check valve would cause failure to both front wheels simultaneously? If that's the case, then the locked hub on front driver side even when in 2A could only be caused by the hub itself that failed, correct? I guess it would also be possible that a faulty hub seal might have caused water infiltration that ended up freezing inside.
What do you think JohnDay?
What do you think JohnDay?
Something I've noticed, is that frequently guys report the left, drivers side, is where they notice the noise initially.
You would think the checkvalve would affect both sides simultaneously, since if you look on the left front fender on a 13th gen, the line coming down from the solenoid goes into a tee fitting, splitting to both sides.
So I really can't answer why it always seems to be the left side that acts up, and not both.
If it was warmer, I'd be out there crawling all over this thing. I'd like to see a schematic of the vac systems on these Gen II's especially, and on all the Egoboosts, to see what connection is between the vacuum pump and the rest of the engine.
01-03-2018, 02:41 PM
#24
Village Sociopath
iTrader: (1)
Join Date: Jun 2014
Location: Nowhereville Barton City Michigan
Posts: 28,535
Received 10,075 Likes
on
6,508 Posts
I have a 2013 XLT Super Crew, 115,000 miles on it. Yes I drive a lot. My first grind was 2 years ago.. and it's been intermittent ever since. It's been doing it really badly this week. I've taken it to the shop 4 times and it will never grind when they have it. ever. The best part, it has done it for me 3 of the last 4 days.
Newest Grinding VIDEO: https://youtu.be/CYrjjeEYqZ4
I had a vacuum hose replaced 2 years ago. Ford claimed it had a tear in it. Fine. Seemed to fix the problem. I had one of the 4x4 actuators replaced about a year ago. I had a hub rebuilt 2 months ago. The sound keeps coming back. It's really frustrating that the mechanic can't diagnose a fix without it making the noise. The vacuum system is either leaking or its not? The solenoid is either broken or it's not? Rebuilding hubs isn't cheap. This seems to be a massive flaw in F-150's. When you flip it into 4x4 it stops, but you really should't drive 70mph on dry pavement in 4x4. I guess it's the luck of the draw. I've owned 3 F-150's and this is the only one that has done it. One mechanic at first blamed the leveling kit on it??? but that should have nothing to do with it.
My truck is being 'fixed' today.. a new 4x4 actuator is being put on. $160. I bet the noise comes back soon.
I'm open to suggestions. I love these F-150's,but this is so annoying it may be time to go to a different brand.
Newest Grinding VIDEO: https://youtu.be/CYrjjeEYqZ4
I had a vacuum hose replaced 2 years ago. Ford claimed it had a tear in it. Fine. Seemed to fix the problem. I had one of the 4x4 actuators replaced about a year ago. I had a hub rebuilt 2 months ago. The sound keeps coming back. It's really frustrating that the mechanic can't diagnose a fix without it making the noise. The vacuum system is either leaking or its not? The solenoid is either broken or it's not? Rebuilding hubs isn't cheap. This seems to be a massive flaw in F-150's. When you flip it into 4x4 it stops, but you really should't drive 70mph on dry pavement in 4x4. I guess it's the luck of the draw. I've owned 3 F-150's and this is the only one that has done it. One mechanic at first blamed the leveling kit on it??? but that should have nothing to do with it.
My truck is being 'fixed' today.. a new 4x4 actuator is being put on. $160. I bet the noise comes back soon.
I'm open to suggestions. I love these F-150's,but this is so annoying it may be time to go to a different brand.
01-03-2018, 02:47 PM
#25
Village Sociopath
iTrader: (1)
Join Date: Jun 2014
Location: Nowhereville Barton City Michigan
Posts: 28,535
Received 10,075 Likes
on
6,508 Posts
Sounds like you have a slow vacuum leak. The left side would begin to engage first as it is the closest to the vacuum source. Full failure both hubs would fully engage. The timing for the hubs to engage is nearly simultaneous. The slight delay to the right side can be attributed to the extra length of vacuum hose. The failure point is the check valve shown in the photo. Inside that valve is a diaphragm that is prone to leaking.
01-03-2018, 02:51 PM
#26
Senior Member
Thread Starter
You were close! Kidding, not at all. I live in Quebec, 500kms East from your place and just a little North. We just finished a cold wave that lasted 2 weeks (near -40F every damn day).
And you're right, his video clip sound like a spoke card placed near the wheel of a bicycle... I wonder if he even has traction from that wheel when he's in 4H...
I understand that the Check Valve is prone to leaking, but after 3000miles and in almost perfect conditions? I mean, this thing hasn't gone through 5% of his lifespan yet.
Just don't want them to repair what's making the noise, instead of repairing what's CAUSING the part to make the noise. If it's an issue with the check valve and they replace the actuator only, the faulty check valve will end up screwing the new one again and again.
And you're right, his video clip sound like a spoke card placed near the wheel of a bicycle... I wonder if he even has traction from that wheel when he's in 4H...
I understand that the Check Valve is prone to leaking, but after 3000miles and in almost perfect conditions? I mean, this thing hasn't gone through 5% of his lifespan yet.
Just don't want them to repair what's making the noise, instead of repairing what's CAUSING the part to make the noise. If it's an issue with the check valve and they replace the actuator only, the faulty check valve will end up screwing the new one again and again.
Last edited by Eduskator; 01-03-2018 at 03:02 PM.
01-03-2018, 02:58 PM
#27
I took my truck in this morning, of course they found nothing wrong, at first. I sent them this thread and boom message received, I have a vacuum leak. They will fix it under warranty. Thank you all.
01-03-2018, 03:00 PM
#28
Village Sociopath
iTrader: (1)
Join Date: Jun 2014
Location: Nowhereville Barton City Michigan
Posts: 28,535
Received 10,075 Likes
on
6,508 Posts
You were close! Kidding, not at all. I live in Quebec, 500kms East from your place and just a little North. We just finished a cold wave that lasted 2 weeks (near -40F every damn day).
And you're right, his video clip sound like a spoke card placed near the wheel of a bicycle... I wonder if he even has traction from that wheel when he's in 4H...
I understand that the Check Valve is prone to leaking, but after 3000miles and in almost perfect conditions? I mean, this thing hasn't gone through 5% of his lifespan yet.
And you're right, his video clip sound like a spoke card placed near the wheel of a bicycle... I wonder if he even has traction from that wheel when he's in 4H...
I understand that the Check Valve is prone to leaking, but after 3000miles and in almost perfect conditions? I mean, this thing hasn't gone through 5% of his lifespan yet.
Mine did it with around 500 miles on a new truck. Dealer couldn't replicate the problem, and with some troubleshooting, I figured it was the valve. I just couldn't see ruining anything on a brand new truck.
01-03-2018, 03:04 PM
#29
Senior Member
Mine isn’t the check valve. I just took my check valve off and blew through one side and then the other. One side was a little difficult to blow and then it is like it popped and then it freely flowed after that. I then blew through the other side and could not get any air through. That tells me the check valve is working as it should.
01-03-2018, 03:05 PM
#30
Village Sociopath
iTrader: (1)
Join Date: Jun 2014
Location: Nowhereville Barton City Michigan
Posts: 28,535
Received 10,075 Likes
on
6,508 Posts