Voltage Regulator
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Senior User
Joined: Feb 2009
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From: Westfield, MA
Voltage Regulator
Does anyone have a picture of the voltage reg. install on a 1993. I'm having a little trouble locating mine. I thought it was on the passenger side inner fender but I can seem to locate it.
Elder User
Joined: May 2008
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From: Wasilla, AK
My 91's is on the inner fender well just behind the passenger side battery, just below the GP relay. Did they change to the alternator with a built in regulator on the 93's? I don't know! Someone will chime in with an answer.
Post Fiend
Joined: Nov 2003
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From: Nutter Fort, WV
Some of the 93 and 94 trucks had internal regulators in the alternator.
If it is external, it would be behind the passenger side battery close to the fender and under the starter relay.
The glow plug relay on 87 and later trucks is mounted on the engine at the back of the intake manifold.
If it is external, it would be behind the passenger side battery close to the fender and under the starter relay.
The glow plug relay on 87 and later trucks is mounted on the engine at the back of the intake manifold.
Post Fiend
Joined: Nov 2003
Posts: 21,285
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From: Nutter Fort, WV
If the regulator is internal, there are wire connections across two locations on the alternator if it has more than one wire hooked up.
There is a Leece Neville alternator mainly used in the ambulance package that has only one wire going to the alternator and no external connections except that wire.
And then there are the external regulators that have three wires going to them from an external harness running over from behind the passenger side battery.
There is a Leece Neville alternator mainly used in the ambulance package that has only one wire going to the alternator and no external connections except that wire.
And then there are the external regulators that have three wires going to them from an external harness running over from behind the passenger side battery.
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Senior User
Joined: Feb 2009
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From: Westfield, MA
Took a look at the alt. that is installed on my truck, the regulator is mounted to the back of the alternator. I was going to tie into it for power to my fuel pump relay. I want to use the wire coming off the fuel shut off solenoid on the IP. I guess I'll just tie into it at the pump and zip tie the wire to the harness.
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