Still pulsing electrical
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Truckee250club
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- Location: Truckee, California
Still pulsing electrical
Brand new battery, voltage regulator, alternator, and properly adjusted belt, all lights pulse above idle, seems to get better the more power I draw. Eg: pulses slower when I turn the lights on, again with the radio, once more with the heater, and again with the aftermarket hid off road lights. I have yet to solve it. Any ideas?
71' F-250 4x4 390 BW-T18
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fmartin_gila1
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Re: Still pulsing electrical
I would suspect the new VR is bad. The Regulator is supposed to control the Alternator to come up to specified Voltage and then cut back just enough to maintain that Voltage and to adjust the output of the Alternator to maintain that Voltage under varying loads depending on what is turned on.
Fred
Fred
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sargentrs
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Re: Still pulsing electrical
Did it do that before the off road lights?
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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Truckee250club
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- Location: Truckee, California
Re: Still pulsing electrical
It did do it before the off road lights. I'll try a new voltage regulator.
71' F-250 4x4 390 BW-T18
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HIO Silver
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Re: Still pulsing electrical
I think it's a combo of a lower power alternator and marginal VR.. the latter actually has amperage ratings so ya might have a mismatch. Plus the HID headlights aren't helping matters.
70 F100 LB 2WD, 360FE, E-Street EFI, TKO-500, 76K original miles.. follow my rebuild: The Lo-Buck Bumpside
71 F250 LB, 2WD, 360FE, T18, PS, PB, D60 with 4.11s
73 F100 SB 4WD, 390FE, NP435, +4 on 35s
01 Ferrari 360 Spider F1
01 F150 SuperCrew Lariat 4WD
01 PT Cruiser Limited (DD)
68 Mustang
65 Mustang
71 F250 LB, 2WD, 360FE, T18, PS, PB, D60 with 4.11s
73 F100 SB 4WD, 390FE, NP435, +4 on 35s
01 Ferrari 360 Spider F1
01 F150 SuperCrew Lariat 4WD
01 PT Cruiser Limited (DD)
68 Mustang
65 Mustang
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Mach428
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Re: Still pulsing electrical
I had this same problem with my Mustang. It turned out to be the wiring harness from the alternator to the VR had a bad ground. You may want to check that and ensure that the harness is in good shape AND that the ground wire from the harness is connected to the block.