Not in the vacuum line.
three hoses that run from the top of the tranny down around the tranny and then back up to the engine
assuming your talking about the transmission modulator...visually inspect the transmission and look for a vacuum hose from the engine to the tranny...
The vacuum modulator is located on the passenger side of the transmission, just above the tranny oil pan. It has a vacuum line going to it. It actuates a valve in the tranny for upshifts.
where dose the vacuum under the battery come from
You can find a diagram for the vacuum system in a 1995 Blazer 4x4 will be located in the Blazer service manual. The manual can be purchased in most auto parts.
a vacum works with the tranny to Shift an automatic vehicle
ontop of the tranny
It does not have one.
no
The 2001 Chevy Blazer vacuum switch solenoid can be found on the firewall in the engine compartment. The vacuum switch solenoid will be on the passenger side of the firewall.
NO. That year transmission is electronic controlled. NO vacuum source needed.
It does not have one.