hey all. ive got this problem with my 85 gl wagon.last month i replaced the heater core so i undid the dash,pulled it as far forward toward the steering wheel as i could undid all wiring harnesses and proceeded with the core exchange. all went well i put everything back as it was.now,when i drive it there are electrical problems.first the volt guage reads around 16-17 volts on initial startup with choke idle. when idle drops voltage drops to around 13.5-14 the normal range.while driving up around 3000-3500 rpm it picks back up to the high voltage. the only way i can control the voltage is to have as many accessories running as possible.the blower motor on high, radio on,lights so forth.now when ihave the blower past 2 my tach jumps around.when i have the blower on 4 and accelerate to the floor the car cuts out.i can turn the control from 4 to 3 under same acceleration and feel the cutting out dissapear.soooo.. italked to a alternator shop and they told me it could be an internal regulator in the alt.not sure if there could be a short to ground causing this sort of problem or what?by me taking the dash out could have something to do with it but i am pretty sure i put all back together right. maybe, maybe not?any suggestions?thanks