20 Most Recent 2011 Infiniti QX56 - Page 2 Questions & Answers

no cleaning filters is done by replacing them

Was the car starting before you changed the battery..? Check your battery leads particularly the black earth where it attaches to the engine block/bodywork. There's many causes of non-starting, and no one on Fixya would be able to give you a definite answer. Non starting can be caused by electrical sensor failures. The best - and cheapest - option is to ask a mobile mechanic to do a diagnostic check for you and identify the problem. Non starting can also be caused by a faulty fuel pump. My Car Keeps Cutting Out

Get rid of it

This is beyond the scope that can be answered online. You need a auto electric repairman.

Sounds like you need a new temperature control. Buy a used one online for a good deal.