ftp19601960
Active Member
I experience some grinding / uneven scratching noise seemingly coming from some front/middle point on my '17 4WD XLT during acceleration. Initially I thought about one IWE (it's a 'mono' sound). The mode switch 2H/4A changes nothing. I believe 4A shall cut off vacuum completely out of IWEs and those must be engaged all the time. And it comes from the middle not from any side. Can it be PTU itself?