1997 q45 infiniti heater not working. when turn on nothing come out no air nothing

Looks like eBay is the only source.

https://www.google.com/search?q=1996+Infiniti+Q45+V8+4.5+air+intake+tube

https://www.ebay.ca/itm/313173877626

or these parts

https://www.ebay.com/b/Air-Cleaner-Assemblies-for-Infiniti-Q45/43946/bn_1408274


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possible trapped air in cooling system, check to see that coolant is full when engine is cold. when air is trapped in system use vavume tool to fill coolant

Hope this helps

https://www.google.com/search?q=1997+ford+explorer+wiper+motor+wiring+diagram&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjfjN2gmqPVAhUC54MKHf-8DXsQsAQIIQ&biw=1364&bih=642#tbm=isch&q=1997+infiniti+q45+fuse+box+diagram

possibly -but I would advise against it. Automatic transmission fluid is manufactured to suit the electronics of particular transmissions and the wrong fluid type or mixing oils may cause more problems that what it would be worth just to get the same fluid.

control unit check

I have had good luck with AUTOZONE.com click on repair help and specs. I tried it for your car and it gives the details torque plus turn method . Hope this helps.

Underneath each of the 8 coils

usually located drivers side behind kick panel or on lower portion dash..

Hello! The inhibitor switch needs to be adjusted or replaced...It is located on the manual control linkage of the automatic transmission shifter...The inhibitor switch has two "jobs"...#1 it acts as a starter relay and #2 it turns on your back-up lights...That portion of the switch (pins 3 and 8) wire colors Green/Black and Blue/White is staying closed...Guru......Saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867