Quote:
Originally Posted by paint guy
fyrebird68,the motors I have are out of a fiero,module out of a bird(years unknown on either)how can I tell if they're compatable?thanks in advance for your help.
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Ironically, this week I had a headlight motor go bad in my 86 Fiero, so I got a refresher course in motor compatibility.
The motors in Fieros (and I believe Firebirds) switched from gen I design to gen II design in 1987. Easiest way to tell them apart is the gen I motors have a larger knob with fins on it. The gen II motor knob is smaller.
Internally, they're a lot different. The gen I motor has internal limit switches to stop the motor drive once the door is open or closed. They can be finicky. Gen I motors do not use a controller board, but use three relays to manage voltage to the motors.
Gen II motor stops when the controller board senses a current increase due to a stalled motor. IMHO it's a better design. As soon as I locate another gen II motor setup, I'll be converting the Fiero.