I acquired a 2002 Infinity QX4 from my neighbor Gary as it was too cheap to pass up.190K miles, V6, 3.5L. He got tired of trying to fix it. When Gary first hopped in it after it sitting for a while he thought the battery was dead. No lights on the dash, no chime nothing.
When I walked up on him he was pulling the battery, and I stopped him. We put a volt meter on it and it read 12V. The battery is some no name, with a tag stating made 10/18, 700 cranking amps.
I started wondering if it was a neutral safety switch, but the car would not start in neutral. Fast forward to last week. Gary called me and said he didn't want to deal with it and I acquired it. He and his wife are trying to move to the free State of Texas and the Infinity was blocking his driveway. I towed it across the street with a tow strap.
When I got to start it the starter does not "jump to life", but drags and then the car starts. If I turn the AC or defrost on everything flickers, and sometimes the car dies.
When running the alternator puts out 13.3V. Kind of low, but still making juice.
I ordered a new grounding harness which runs from the negative battery terminal, has a 'Y' and an attachment point on the passenger's side fender. The strap continues then grounds to the right side of the engine. I cleaned on the points of contact and installed the grounding wire. Charged the battery overnight and installed it this afternoon. Car will start, hard cranking and then has all the same symptoms.
Thinking of buying a new battery, but the fact it is only two years old and takes a charge gives me pause. Posting here as Furbird used to work in a Nissan shop, Oscar is an accomplished mechanic, and well this place is often a wealth of knowledge. 😃 I suspect it is some silly ground. I see evidence some critter chewed on the insulation under the hood, curious if it grabbed onto some grounding strap I may not be familiar with.
Oh, Gary said the radio quit working a few years ago. Bose. Shame. Today during the test drive it worked. When I got home it quit working?
A few years back our Murano was acting weird and a new battery cured it.