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Battery Charging at 18 Volts

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Alexjordan22
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Post by Alexjordan22 »

I noticed my battery was hot while running so I put my multimeter on it and sure enough it's showing 18+ Volts while running. Am I able to just replace the voltage regulator since I know the alternator is working? 1994 850 NA
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Chuck W
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Post by Chuck W »

The regulators are replaceable. They're just kind of a bear to replace while the alternator is on the car.

Getting the radiator cooling fan assembly out of the way will give you more working room.
Last edited by Chuck W on 30 Oct 2023, 11:43, edited 1 time in total.
'97 855 GLT - Hers. RN swap/16T/COP/VVT/exhaust/302s/Flashed M4.4/ chassis bracing/ 2 kid seats
'78 GLE - Waiting in the wings. Future whiteblock/T5 swap.
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volvolugnut
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Post by volvolugnut »

Make the alternator repair soon, or the high voltage will ruin the battery and maybe other electrical devices including bulbs.
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foggydogg
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Post by foggydogg »

Double ditto; Robert replaced one on his ride not long ago without taking it off, but:
1) he is a Magician, and 2) he has pulled dozens from cars in salvage yards, and you know what they say about practice.
He is also big on doing the mod t hat puts the fan inside the shroud. Makes life a lot easier, even on the N/A cars.
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Chuck W
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Post by Chuck W »

foggydogg wrote: 30 Oct 2023, 20:39 Double ditto; Robert replaced one on his ride not long ago without taking it off, but:
1) he is a Magician, and 2) he has pulled dozens from cars in salvage yards, and you know what they say about practice.
He is also big on doing the mod t hat puts the fan inside the shroud. Makes life a lot easier, even on the N/A cars.
Yeah, I've tucked the fans on both of our cars. Makes a big difference in room on the front of the engine bay.
Removing the fan shroud isn't all that much work, though.
'97 855 GLT - Hers. RN swap/16T/COP/VVT/exhaust/302s/Flashed M4.4/ chassis bracing/ 2 kid seats
'78 GLE - Waiting in the wings. Future whiteblock/T5 swap.
'97 854 T5 - Manual Swap/M4.4/COP/NA cams/P2R Brakes/16T/ chassis bracing/ XC70 nose swap - SOLD/GONE
The Others- '83 TBird turbo, '85 Mercury Marquis LTS (1 of 134), '86 LTD Wagon, '81 Granada GL, '76 Beetle, '87 F-150 5.0
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