What is your question?
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What is your question?
truck runs good until you turn on the lights. It starts loosing power and dies within minutes. turn off the lights, starts up just like normal.
2 Replies
Check battery connections are clean tight and secure, check the alternator is charging properly, at idle with a voltmeter across the battery the voltage should be approx 14.7 volts if the alternator is charging correctly. A voltage drop or bad electrical connection has to be causing the problem.