Question about 1993 Dodge Caravan

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1990 dodge caravan voltage regulator location

Where is voltage regulator location

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  • Anonymous Mar 31, 2014

    Where is the voltage regulator located?

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The Voltage regulator is in the PCM.

Posted on Sep 30, 2008

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Voltage regulator should be built in,in the alternator.

Posted on Jul 09, 2008

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Where can I locate the fuse for a 2000 dodge caravan for the alternator?


If it does not charge battery test charge system basics, voltage is regulated through PCM

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This part is located on the alternator of your vehicle. You can purchase this part from your local auto maintenance shop or from your dealer.
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Almost all voltage regulators are part of the alternator now.

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Look on drivers side fenderwell there should be 3 bolts that mount it to the fenderwell.

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The engine computer is also the voltage regulator.

I copied the following from another site. It might be something you should look at.

"The voltage regulator is built-in to the ECM...about a $275 part! However, before you jump to conclusions about the voltage regulator being defective, I'd highly recommend that you go visit the autozone website and follow the "Check charging system" word for word. I discovered that the alternator in my 1990 Dodge van wasn't grounding? How could that be? It's bolted to a metal bracket, right? Could be corrosion, could be rust? I even installed a second ground strap from engine to body. Nothing worked until I ran a ground wire from the battery to the alternator case. Charged just great then! Of course I discovered this after first replacing the alternator and the ECM! Don't you make the same (expensive) mistake."


Read more: http://wiki.answers.com/Q/Where_is_the_voltage_regulator_in_a_1990_Dodge_Ram_250#ixzz1HABX5yJ7

Mar 20, 2011 | 1990 Dodge W150

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My 1990 dodge caravan wouldnt start when I returned to it. It sarted to and now it just cranks over. I get spark and I primed the throttle body and got it to fire. I checked for fuel delivery by removing...


The fuel pump rela is located under the hood, driver side, front side of strut tower, rear of headlight, mounted on inner fender well.
However I do suggest jumping the fuel pump to see if pump turns on. Test voltage from ECM if needed. If voltage is to pump, then pump is shot. If not voltage, relay may be bad.
If pump works on jumping it you may have to try and start 5-10 times aka couple minutes. If pressure is still not building and pump is on, then you may want to consider testing the fuel pressure regulator. voltage regulator will handle amount of fuel pressure being delivered to the system. You can test with voltmeter to see if you are getting any voltage to the regulator.

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1 Answer

I have a 1990 dodge caravan that will not charge


use a volt meter and check the voltage with the engine off. should be 12 volts then check again with engine running it should be 13 to 15 volts if no then the pcm is at fault. the voltage regulator is inside the computer control and you will need to have it checked out at a dealership. if bad will have to replace the computer on van to correct the charging system. hope this will help!!!

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2 Answers

I replaced the alternator twice and the new alternator is not working?


It probably isn't the alternator that is bad, but rather the voltage regulator, which by the way is in the computer behind the battery.

Oct 30, 2009 | 1990 Dodge Grand Caravan

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