The heater blower in your 1995 Oldsmobile 88 only blows when it wants to Is the blower getting ready to go out and is it hard to replace e?
I am dealing with the same problem on my 98 and what I've discovered is that both the blower motor and the resistor need to be replaced.
Brought it to the shop they quoted 500.00. Online someone said that they installed it in an hour or so.
I ordered both parts from O'Reilly's Auto Parts for less than 60.00 total and will put it in myself.
Hope this is helpful.