2011 Infinity QX56 will not start though all electrical components inside will light up? It does crank.I've replaced the battery and all is well for a couple of months then back to the same issue.

SOURCE: 95 F150 wont crank

the starter should be replaced. The solenoid is kikcing the pinion out but there is no contact being made to turn the starter motor. I have the exact same truck and before i changed the starter used the old starter tap trick. Tap the starter casing with a hammer and it should start turning again. hope this was helpful for you. Good luck.

SOURCE: 2000 Nissan XTerra Electrical Probs

I was told by a loca mechanic that Nissa has had problems with electrical grounding for some time. Ii had a 1997 Altima that I intened to drive forever but finally gave up at (only) 90,000 miles. It went through 4 alternators in three years. Also a corroded radiator. The mechanic said Nissan has used the engine block as a ground, since cards today don't have the old-fashioned frame rails. Any loosening or other disturbance to that engine block ground will cause electriclaly-charged coolant to flow throughout the system: definition of elctrolysis. I don't if this applies to 2000-and-beyond vehicles, but it did in the 90s. Elsewhere in this section someone posted a ground solution (Maxima) that looks good. These are great vehicles, but if you have one (any make) with a persistent electrical glitch it can be one of the most frustrating and costly problems to fix.

SOURCE: My 1997 Chevy Lumina will

REPLACE BATTERY CABLES THE POSITIVE BATTERY CABLE COULD BE SHORTING TO GROUND.REPLACE STARTER SOLENOID IF NOT BEEN REPLACED.BESURE TO PLACE BACK FLEXIBLE CONDUIT THAT GOES AROUND POSITIVE BATTERY KEEP FROM SHORTING TO GROUND. LAST TIME I SEEN BATTERY CABLES OVER HEAT WAS EITHER STARTER AND SOLENOID SHORTING OUT OR VERY LOOSE BATTERY CABLES CONNECTIONS. REPLACE BATTERY CABLES IF THEY ARE MELTED HAVE STARTER CHECKED OUT YOU COULD HAVE FAULTY STARTER STILL.

SOURCE: we have 2002 chevy trailblazer LTZ, we've replaced the battery twice, new alternator, current draw test comes back normal, reset computer numerious times, pulled all fuses and relays, checked all

what exactly is the question ?

SOURCE: Battery seems completely dead until I twist the negative cable on the battery terminal, then it starts.

I had the same problem I replaced the battery terminal it worked fine for sometime and it started giving same problem after sometime I cleaned the battery rod and terminal with water mixed with baking soda it works fine. Hope this will help you