voltmeter ? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 7 (permalink) Old 07-28-2010, 12:52 AM Thread Starter
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voltmeter ?

My voltmeter in my 91 is bouncing around a little bit, head lights and interior lights flicker. Checked with gauge and it goes from about 14.8 to 15.6 volts. It does this all the time. Any ideas were to start checking?

1997 Dodge 2500 4x4 auto, 4 inch exhaust, airaide intake, 0 plate, boost elbow, 4k gsk, trans, boost, and pyro gauges, built trans with billet converter, 16 cm exhaust housing.
1991 Dodge W250 4x4 manual, 3200 gsk, 4 inch straight piped, advanced timing 1/8", pump turned up all the way.
1997 F-250 Power Stroke-manual trans, 4" exhaust, TS 6 position chip with PHP Tunes, DIY intake, shimmend regulator.
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post #2 of 7 (permalink) Old 07-28-2010, 06:05 AM
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Grounds and battery terminals, voltage drop on the alternator to battery lead, ground the alternator case with a 4 or 6 ga wire. Shine all connections with a wire brush.

If it has a stack of miles or runs washboard roads check for broken wires.

93 Dodge /CTD, IC, 518, club cab LE, BHAF, KDP fixed, kelderman air ride
81 Isuzu /C223na, 5spd
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post #3 of 7 (permalink) Old 08-02-2010, 03:43 AM Thread Starter
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So I checked all the grounds and from what I can see they look okay. But I ran the battery dead and when I jump started it it didnt do this untill it got a full charge again. Could this be a voltage regulator issue?

1997 Dodge 2500 4x4 auto, 4 inch exhaust, airaide intake, 0 plate, boost elbow, 4k gsk, trans, boost, and pyro gauges, built trans with billet converter, 16 cm exhaust housing.
1991 Dodge W250 4x4 manual, 3200 gsk, 4 inch straight piped, advanced timing 1/8", pump turned up all the way.
1997 F-250 Power Stroke-manual trans, 4" exhaust, TS 6 position chip with PHP Tunes, DIY intake, shimmend regulator.
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post #4 of 7 (permalink) Old 08-02-2010, 07:54 AM
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Yes

93 Dodge /CTD, IC, 518, club cab LE, BHAF, KDP fixed, kelderman air ride
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post #5 of 7 (permalink) Old 08-03-2010, 01:01 AM Thread Starter
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K so im a tard when it comes to electricall stuff. So now what?

1997 Dodge 2500 4x4 auto, 4 inch exhaust, airaide intake, 0 plate, boost elbow, 4k gsk, trans, boost, and pyro gauges, built trans with billet converter, 16 cm exhaust housing.
1991 Dodge W250 4x4 manual, 3200 gsk, 4 inch straight piped, advanced timing 1/8", pump turned up all the way.
1997 F-250 Power Stroke-manual trans, 4" exhaust, TS 6 position chip with PHP Tunes, DIY intake, shimmend regulator.
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post #6 of 7 (permalink) Old 08-03-2010, 05:50 AM
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I think that the 91 is still separate VR, check the ground between the alt and VR, if the ground is low resistance replace the VR.

93 Dodge /CTD, IC, 518, club cab LE, BHAF, KDP fixed, kelderman air ride
81 Isuzu /C223na, 5spd
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post #7 of 7 (permalink) Old 08-06-2010, 12:51 AM Thread Starter
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I wont be able to do this till this weekend. When I check that i will post back.

1997 Dodge 2500 4x4 auto, 4 inch exhaust, airaide intake, 0 plate, boost elbow, 4k gsk, trans, boost, and pyro gauges, built trans with billet converter, 16 cm exhaust housing.
1991 Dodge W250 4x4 manual, 3200 gsk, 4 inch straight piped, advanced timing 1/8", pump turned up all the way.
1997 F-250 Power Stroke-manual trans, 4" exhaust, TS 6 position chip with PHP Tunes, DIY intake, shimmend regulator.
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