92 XJ, 4.0L throwing code 42. A little background, when I start the engine in the morning (or anytime it's been sitting for a while) the guage shows low voltage around 9 or so and the lights are very dim. After a while, it's almost as if it the alternator "switches" back on and the lights will instantly brighten up and the gauge will snap to full charge. This is an intermittent problem. Some days it starts and runs fine without this problem. Other days it does it everytime I start the engine.
Any ideas? Bad ground, worn cables, alternator failure, etc?
Any ideas? Bad ground, worn cables, alternator failure, etc?