New Noise after IWE Actuator Replacement - FordTough.ca - Home of Canadian Ford Truck Enthusiasts
 
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post #1 of 7 (permalink) Old 04-06-2014, 12:01 AM Thread Starter
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Location: Hamilton, Ontario
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New Noise after IWE Actuator Replacement

Hi guys, i'm hoping one of you may be able to shine some light on a problem that my truck has developed.

For the past couple of months my truck had been intermittently having a grinding noise/vibration in the front end. Generally low speed only, 40-50Km/h . The noise/vibration would go away as soon as I shifted out of 2wd in to 4wd. After doing much research I figured it was the IWE actuator that was causing the problem. I took my truck in to my normal mechanic this week and had them look in to the problem and they after some digging agreed that it was likely a bad IWE actuator causing the problem. They had my truck 4 days as after they replaced the IWE actuator on the driver side they noticed a new problem, a problem which I had never experience until they worked on my truck.

Intermittently at highway speeds, around 90-95Km/h, I get a buzzing noise coming from the front end. There is no vibration in the truck, just the noise. Honestly I'm stumped, prior to my truck being in the shop I never experienced anything like this, and thought my problem would be solved after the IWE replacement. Now I've got a truck making an intermittent noise and a mechanic that isn't sure what the problem might be.

Do any of you guys have any suggestions or things to look at. Maybe someone has had a similar situation.

Thanks
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post #2 of 7 (permalink) Old 04-06-2014, 06:46 AM
 
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Just a suggestion. Check for vacuum leaks and one way valve operation.

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post #3 of 7 (permalink) Old 04-06-2014, 11:08 AM
 
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Quote:
Originally Posted by Destructicon View Post
Just a suggestion. Check for vacuum leaks and one way valve operation.
Good place to start. There are check valves in the system. May be that with a vacuum leak and higher speed, therefore less vacuum, the iwe may be trying to engage a bit. Check the lines running from the iwe solenoid to the actuators. Does it still do it if you put it in 4wd?

Such is life. Just passing through.

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post #4 of 7 (permalink) Old 04-06-2014, 04:41 PM Thread Starter
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Those noise only seems to exist in 2wd. When it happens, I'll slow down slow enough to engage the 4wd and as soon as I do that the noise goes away.

The link below is someone else with a similar sound.

https://www.youtube.com/watch?v=MKDgAzZDFIk

Sounds like based on other comments it's either the IWE solenoid or a check valve. Guess I have some digging to do.
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post #5 of 7 (permalink) Old 04-06-2014, 08:24 PM
 
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I am so glad my truck is so old. Dodge used vacuum operate 4wd. Just brings to mind the old saying, "Just because someone else did it doesn't mean it's a good thing." In my opinion, there's nothing like having control over your vehicle instead of it holding you hostage with repair bills.

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post #6 of 7 (permalink) Old 04-07-2014, 11:01 AM Thread Starter
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Sadly, my thoughts right now are that I'm going to have to throw some parts at it and see what happens. I know the solenoid valve is known to go bad and it's a cheap part, $20ish, so I'll start with that and the vacuum resevoir, another cheap item, and see if those are the problems. Rather not rack up the bill at the mechanic shop for something I can change.
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post #7 of 7 (permalink) Old 04-07-2014, 03:29 PM
 
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Pull the vacuum line off of the solenoid and plug it with a golf tee. I'd say its one of the hubs. Get a price of vacuum hose and hook it to each wheel hub and suck, the diaphragm should hold vacuum

05 F150 Lariat Screw.
89 LX5.0 usual mods.
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