I own a 2000 Nissan Frontier XE 4x4 truck w/3.3L V-6 (125K miles) I used the 4L setting fine last August and tried to use it in Jan. The 4H works well but it will not shift (frozen) into 4L. Any suggestions? Can I fix it?
Also. I had to replace a intake plenum gasket. I had a small water leak. I did, after I replaced the fuel rail and such (I hand cleaned the injectors) I have had a problem with long startups when the vehicle has run once in the day. In the morning I can start it up quickly (within 2 seconds), but after that it is more like 5 seconds or longer even if it has been sitting for eight hours while I am at work. I changed the fuel filter, checked the computer (no codes). I also changed the temp sensor for the H2O. It still is not reacting right. It runs perfectly after starting. I do smell unburned gas upon the long startups. It seems to be running rich at these times. Can one of you experts help me?