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On my 1988 E250 van where is the voltage gauge regulator lacated at?

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The voltage regulater is built in the alternator..take it to the nearest auto parts store and they will test it for free...either on or off the van

Posted on May 16, 2009


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Where is the fuel pressure regulator located on a 1988 Dodge B-150 van, 5.2 liter? I've been told it's on the fuel rail. Where is the fuel rail?

If you have throttle-body fuel injection, you don't have a fuel rail. The fuel pressure regulator should be mounted to throttle body.


Dec 13, 2016 | Dodge Cars & Trucks

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Note to Dennis W

Hi Lee, Just an observation. I believe the voltage regulator is in the alternator and not the ECM. I would suggest you replace the regulator or the brushes in that unit. Regards John

Jun 30, 2012 | Dodge B Series Cargo Cars & Trucks

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Where is the voltage regulator on a 2004 Ford E-250 van and how can I replace it?

The voltage regulator is internal to the alternator. They are not very often replaceable independently anymore. There are still a few electrical shops that can replace just the regulator, but for the price and labor involved, you would be better off to replace the entire alternator. You will need a new or used alternator to repair a non-charging issue.

May 11, 2011 | 2004 Ford E250

1 Answer

Battery light stays on all the time on my 1985 E250 ford van, i changed the alternator, changed the voltage regulator changed starter silonoid, and it does not hold a charge after jumping!

u need to chek for batt volts at the pos pole on the bak of alt.should b batt voltage if not then wire from pos pole on back of alternator to battery could be broken,causing no output tobattery. wiggl voltage regulator wires while engine runs an check volts with a voltmeter to see if it jumps to over 13v wen wiggling connector.also chek fuses an fusible links for continuity.

Apr 08, 2011 | Ford E-250 Cars & Trucks

1 Answer

Does this van have a separate voltage regulator

It is built into the back of the alternater and usually about as much as buying both of them together if its even in stock/

Jan 17, 2011 | 1988 Dodge Caravan

1 Answer

Gas gauge not working

Your sending unit is bad.

Here is the circuit:


IS: Ignition Switch
VR: Gauge Voltage Regulator (mounted with the gauges)
G: Gauge
SU: Gas tank sending unit

The gauge deflects through heating a strip of metal that bends when hot. There is resistance wire wrapped around that strip to heat it up. One end of that wrap of wire is attached to the gauge "voltage regulator, the other end to the tank sending unit. The "voltage regulator" cycles between conducting power from the Ign. Sw. to the gauge, and disconnecting the gauge from that voltage. The sending unit in the tank varies resistance in response to the position of the float in the tank. Full: virtually no resistance. Empty: a lot of resistance. When the tank is full, during the period the "voltage regulator" is on, the strip of metal heats up a lot, because the sender has almost no resistance. When the tank is empty, during the period of time the "voltage regulator" provides voltage, the strip barely gets heated, deflecting the gauge hardly at all, because the resistance the sending unit creates limits the current through the gauge.

You have almost no continuity through the sending unit except near full, and at a few other position. Replace the sender, and you will have a functioning gauge.

Jun 15, 2010 | 1988 Chevrolet Monte Carlo

1 Answer

Gas guage not working

Voltage from the battery goes through the ignition switch, through a device in the instrument cluster called a voltage regulator (though it is really misnamed), through the gauge, through the wiring to the gas tank, through the sending unit in the gas tank to ground.

The sending unit is an electrical wiper that slides across a peice of resistance wire. the movement of the float moves the wiper. If the sending unit no longer makes electrical continuity, the gauge will read zero. If the sending unit wiper is shorted out, the gauge will read full.

Try grounding the wire at the tank to see if the gauge maxes out, then disconnect it to see if the gauge zeros out. If all that happens, your problem is the sending unit in the tank. If none of that happens, your problem lies closer to the front of the car. While you are under there, you should measure the resistance from the terminal on the tank to ground, just to verify that the sending unit makes some electrical contact.

If the other gauges work OK (temp, oil pressure) then the "voltage regulator" is probably working fine, and the problem is the gauge itself.

If you have no other gauges (excluding speedometer, tachometer and battery voltage meter -- they work differently), then try this:

Put a voltmeter on the part of the fuel level gauge that is supplied by the "voltage regulator." The voltage there should regularly cycle between near zero to 10 or 12, back to near zero, etc. If you get that cycling, then it is most likely the gauge.

Jun 15, 2010 | 1988 Chevrolet Monte Carlo

1 Answer

1988 nissan sentra fuel and temp guage voltage regulator

emissionwiz is wrong.
there is a voltage LIMITER located behind you gauge cluster.
Small silver box usually 4 numbers stamped on back with three wires out of it, yellow, blue, black.

May 19, 2010 | 1988 Nissan Sentra 2 Door

1 Answer

Fill up on gas - the gauge goes to full. next time starting van, the gauge goes to 1/4 tank. once the DTE was still accurate and this time went to ---. what could cause this.?

I would look for a loose wire in the gauge circuit, most probably on the tank unit. The other possibility is the instrument panel voltage regulator which supplies regulated voltage the the panel gauges. Mostly these are built into the fuel gauge, so if faulty, the gauge itself will have to be replaced.

May 01, 2010 | 2005 Kia Sedona

1 Answer

1988 honda accord voltage regulator.Where is it located at?

The voltage regulator is probably in the alternator. I don't think nowdays you can buy voltage regulator separate. If the voltage regulator is bad, you'll need to buy an alternator.

Apr 30, 2009 | 1988 Honda Accord 4 Door

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