IWE Gen I issues

[Shawnmcelvogue]

I had a place R n R the OG 6.2L for a new stroker 400 with a Whipple 2.9L Supercharger !! Started n tuned great.
However, apparent now the axels weren’t spinning in 2wd and heard grinder of some sort ! Was the cv joint spinning around axel. there’s a vacuum line to the wheels which with the wider alpha 1 axels and front end mod doesn’t have but is it still going to the transfer case ? Did the mechanic forget to attach it properly to cause this issue ? What do I search for ?

 

[FordTechOne]

The front axles shouldn’t spin in 2WD. That’s the purpose of the IWEs; to disengage the axles from the front hubs. The IWE system is separate from the transfer case.

If the vacuum line is left disconnected at one wheel, it will cause the affected axle to rotate at all times, which can damage the differential pinion gears. It sounds like you may just need to re-connect/extend the vacuum line to get the IWE to disengage.

 

[CoronaRaptor]

The front axles shouldn’t spin in 2WD. That’s the purpose of the IWEs; to disengage the axles from the front hubs. The IWE system is separate from the transfer case.

If the vacuum line is left disconnected at one wheel, it will cause the affected axle to rotate at all times, which can damage the differential pinion gears. It sounds like you may just need to re-connect/extend the vacuum line to get the IWE to disengage.

You managed to understand his question, I couldn't understand his question, if he had iwe deletes added or not with his longer axles.

 

[Mikee Martin]

FordTech1 or anyone with knowledge please verify the axles should not spin in 2wd. My gen2 has a really bad noise come from the front, I think. Truck is parked at my shop until I can find out the problem. In 2wd, the front axles are freespining... thanks for your help . If spinning and noise, what do I fix or ck?

 

[CoronaRaptor]

FordTech1 or anyone with knowledge please verify the axles should not spin in 2wd. My gen2 has a really bad noise come from the front, I think. Truck is parked at my shop until I can find out the problem. In 2wd, the front axles are freespining... thanks for your help . If spinning and noise, what do I fix or ck?

The front cv axles should not spin in 2h, that means the iwes are engaged. Easy to tell what is going on, jack the front of the truck up and turn the engine on, in park 2h, the front tires should spin without the axles spinning.

edit: that stupid check valve could be the problem on the gen 2, seems most with the issue have replaced that. The one by the brake booster.

 

[Mikee Martin]

FordTech1 please verify the axles should not spin in 2wd. My gen2 has a really bad noise come from the front, I think. Truck is parked at my shop until I can find out the problem. In 2wd, the front axles are freespining... thanks for your help . If spinning and noise, what do I fix or ck

The front cv axles should not spin in 2h, that means the iwes are engaged. Easy to tell what is going on, jack the front of the truck up and turn the engine on, in park 2h, the front tires should spin without the axles spinning.

edit: that stupid check valve could be the problem on the gen 2, seems most with the issue have replaced that. The one by the brake booster.

FIXED! ONE WAY VALVE THANK YOU

 

[FordTechOne]

FordTech1 please verify the axles should not spin in 2wd. My gen2 has a really bad noise come from the front, I think. Truck is parked at my shop until I can find out the problem. In 2wd, the front axles are freespining... thanks for your help . If spinning and noise, what do I fix or ck

FIXED! ONE WAY VALVE THANK YOU

Glad you got it fixed! The front driveshaft/axles will rotate in 2H due to drag from the transfer case clutch, but there is no load on them and they will not match wheel speed.

 

[Mikee Martin]

Glad you got it fixed! The front driveshaft/axles will rotate in 2H due to drag from the transfer case clutch, but there is no load on them and they will not match wheel speed.

Thanks to Ford Tech One and Corona Raptor! With all of the posts and information I bought a ck valve and easily fixed what sounded like a blown front end in 5 minutes! Really appreciate the help