i have a 1987 non turbo... and when i accelerate it feels like i i have a loss of power between 3 and 4 thousand rpm but then its fine... also every now and then there is a beep that goes off in a series of five beeps then pauses and i lose my power steering and when i turn the wheel back and forth the beeping stops but my power steering will slowly come back but cut out again... could there be air in my lines? or is my pump dead?

 

I have limited time but check the power stearing system. it consists of a series of beeps that will tell you if some thing is wrong. As stated in the Frequently asked questions "I keep hearing a beep beep beep
Probably the power steering computer telling you there is a problem with the system. The number of beeps before pausing will indicate the problem.
1-beep, pause, repeat - in case abnormality of speed sensor signal:
In case broken wires or short circuits occur to sensors or harnesses, the buzzer sounds 60-seconds after the engine speed signal of 2200 rpm continues for 18-seconds.
2-beeps, pause, repeat - in case abnormality of engine speed signal:
The buzzer sounds twice and repeats when the vehicle speed signal is missing input and/or no engine speed signal is found (short circuit, broken wire, etc.)
3-beeps, pause, repeat - in case abnormality of stepping motor signal:
The buzzer sounds when there are broken wires or short circuits in coils or harnesses.
4-beeps, pause, repeat - in case abnormality of the power steering microcomputer:
The buzzer sounds 4 and repeats when there are circuit troubles other than with the micro computer.
5-beeps, pause, repeat - in case abnormality of steering sensor signal: Steering sensor is mis-aligned or failed or steering wheel has been improperly installed.
"

is it power loss or just bucking? still worth checking the tps (throttel position sensor) "http://howto.globalvicinity.com/gv_wiki.php?wi=58&co=1&vi=1"

if im off on the tps, sorry im an S5 guy =\