The AC comp should have a bolt(s) to loosen that will release tension & maybe addit'l idlers. Do that, slip off belt, put new 1 on, pry against the belt with a crowbar & tighten bolt.
This might be helpfful. How do you Change a fan belt on 94 prizm?
This was for a 1994 but try searching here. How do you Change a fan belt on 94 prizm?
1994 Geo Prizm has a timing belt.
belt diagram for a 1996 Geo Prizm
How do you replace the timing belt on a 1994 Geo Prizm 1.6?
Replace every 60,000 miles.
how much cost to change a clutch for a geo prizm 1995
Most likely a belt is slipping.
Replace the cam belt every 60,000 miles.
Oh yes!
Geo Prizm was created in 1989.
My 1991 Geo Prizm LSI does not have overdrive My 1991 Geo Prizm LSI does not have overdrive