WHEN I SHIFT THE PTO INTO 4 HIGH THE LIGHT COMES ON BUT THE FRT AXLE IS NOT DRIVING, ONLY THE REAR AXLE?
SOLVED: Vacuum system for the 4x4 transmission/ transfer case & differential? - 1983-1994 Chevrolet Blazer - iFixit
![4.3 vortec 2001 Chevy blazer can anyone tell me where this vacuum line is supposed to connect to : r/MechanicAdvice 4.3 vortec 2001 Chevy blazer can anyone tell me where this vacuum line is supposed to connect to : r/MechanicAdvice](https://i.redd.it/il1qc8wb3hl31.jpg)
4.3 vortec 2001 Chevy blazer can anyone tell me where this vacuum line is supposed to connect to : r/MechanicAdvice
![Chevy S10, S15, and GMC Sonoma Pick-Ups 1982-1993 Repair Manual Vacuum Diagrams Repair Guide - AutoZone Chevy S10, S15, and GMC Sonoma Pick-Ups 1982-1993 Repair Manual Vacuum Diagrams Repair Guide - AutoZone](https://www.autozone.com/znetrgs/repair_guide_content/en_us/images/0996b43f/80/21/13/e3/large/0996b43f802113e3.gif)
Chevy S10, S15, and GMC Sonoma Pick-Ups 1982-1993 Repair Manual Vacuum Diagrams Repair Guide - AutoZone
![2004 Blazer 4WD LS, 29K miles. No forced air (hot or cold) coming through floor vents. Dash & defrost vents work fine. 2004 Blazer 4WD LS, 29K miles. No forced air (hot or cold) coming through floor vents. Dash & defrost vents work fine.](https://ww2.justanswer.com/uploads/GM/GMGreatWrench/2013-01-23_033936_blazer_vacuum_lines.jpg)
2004 Blazer 4WD LS, 29K miles. No forced air (hot or cold) coming through floor vents. Dash & defrost vents work fine.
![DIY How to Replace 4WD Vacuum Actuator Switch on a Blazer S10 Jimmy How to Troubleshoot 4WD Issues - YouTube DIY How to Replace 4WD Vacuum Actuator Switch on a Blazer S10 Jimmy How to Troubleshoot 4WD Issues - YouTube](https://i.ytimg.com/vi/YJx93-Af0t8/maxresdefault.jpg)
DIY How to Replace 4WD Vacuum Actuator Switch on a Blazer S10 Jimmy How to Troubleshoot 4WD Issues - YouTube
![91-95 YJ 4X4 Vacuum Lines Transfer Case to Front Axle 53007920 - Parts Breakers - Rust Free used jeeps parts for sale 91-95 YJ 4X4 Vacuum Lines Transfer Case to Front Axle 53007920 - Parts Breakers - Rust Free used jeeps parts for sale](https://s3.us-east-2.amazonaws.com/partsbreakers/products/pxl-20211123-052447212.jpg)