GEN 1 Odd noise on acceleration

[WNCHSTR96]

So, i ran all new vacuum lines to the iwe's and the noise is still there. After a transmission and transfer case service, the noise is gone

That’s interesting that after the service it went away. How many miles had it been since its last transmission service? Did the shop notice anything like the fluid was burnt or old?

 

[Gumby]

So, i ran all new vacuum lines to the iwe's and the noise is still there. After a transmission and transfer case service, the noise is gone

IWE Bad? How to Check

This is a Quick and simple Test. You will need one of these Vacuum Hand Pump and a pice of vacuum line the correct size. I have and old IWE line. Start with either IWE. Remove the hose It is Here After removing the line/hose use the vacuum pump to pull 20-25 InHg of vacuum. Let this Sit 10...

www.fordraptorforum.com

 

[ograptor]

Well, i dont know how long it was between services. But im betting it wasnt serviced. I did the change, and the fluid was dark, but didnt smell burnt.