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Car Forum / Nissan / Nissan Cars / December 2007Nissan Truck?
The lights In my truck change brightness all by themselves whenever engine goes into higher RPMs. Change is happening at regular intervals as long as engine is in higher RPMs. It stops when it goes on low idle. Voltage on battery terminals fluctuates between 18-14 volts. Any idea what causing that? Voltage regulator? Alternator belt? I would think alternator (VR is internal) as 18v is way high. 12 MILLION PEOPLE CAN'T BE WRONG BIG" L" > The lights In my truck change brightness all by themselves > whenever engine goes into higher RPMs. Change is happening [quoted text clipped - 5 lines] > Voltage regulator? > Alternator belt? Assuming a good meter, then voltage regulator. The charging voltage should never reach 15v. John > The lights In my truck change brightness all by themselves > whenever engine goes into higher RPMs. Change is happening [quoted text clipped - 5 lines] > Voltage regulator? > Alternator belt? A further thought: 18v is going to do bad things to your battery. Check the electrolyte level, and keep it topped up with distilled water. 18v may do much worse things to other electrics/electronics. John |
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