No it's not PVC, but it is PCV.

Picture 1 from oldgmctrucks.com

Picture 2 from oldgmctrucks.com


UH OH, the links only work if you are registered at that forum. I'll try to find public links to replace them.

OK, I scanned a pic from the maintenance manual and uploaded it to my site. GMC crankcase vent

Last edited by cletis; 02/12/2008 5:45 AM. Reason: Added public link.

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.