Replced IWE grinding noise still here help!!

miked5150 · #1 10-22-2009, 05:46 PM

Ok read the posts about bad IWE solinoid causing metal scraping/grinding noise coming from front of truck. My noise just started yesterday, noise goes awy when I put truck into 4xhi. I bought new IWE Solinoid installed it started up truck for a test drive noise occurred almost instantly. Am i a dork did i need to let the pressure build up in the system before driving?? I also noticed that when I removed the old silinoid vacum lines I didnt hear anything. When I removed the lines from the new solinoid I heard air pressure being released from the lines.. Any help will be be appreciated I dont think I could have damaged the hubs/splines since I didnt drive at all (2-3miles max) with noise grinding.

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Paralyzer · #2 10-22-2009, 05:52 PM

check at each wheel and make sure the vacuum lines are plugged into the IWE itself, they can be snagged and pulled off easily.

miked5150 · #3 10-22-2009, 06:09 PM

Thanks checked the lines at the wheels for cracks and pulled them off to check for water. Mechanic friend told me to start the truck and let idle for a few minutes to allow pressure to build in the solinoid. Tried this and test drove truck, noise still happened, also put old solinoid back on truck and hooked up programmer to see if any trouble codes appeared they did not.. Now im more confused ...

JuddFX4 · #4 10-26-2009, 10:08 AM

You need to get a vaccumn gauge and check at the hoses off the hub and see if you are getting vaccumn you should have around 22 pounds of pressure at both sides. Thats the first place I would start. You could also have a bad check valve that comes off the solenoid. Check vaccumn at the hubs first.

Ganners · #5 10-27-2009, 12:40 PM

I had the same problem.
It turned out to be a leaking iwe.
You can check it with a rubber hose and suck up vacuum and seal it with your tongue .
If it holds, all is good, if not repair it!

mikez · #6 10-27-2009, 01:27 PM

i had the same problem, turned out that BOTH hubs/IWE's were bad, the outer boots had torn and water go into them makeing them rust. Replaced both around $200 total and good as new. Not that hard to change.