Indicator lights coming on randomly

S10 you said clearly. NO BOX told at all, of 3 or more.
post that transfer case is there, ?
some are part ,time only for offroad only.
how to shift, steps (in dirt best)
keyoff, stop engine
key on shift to 4hi 4wd not 4 Low, 2speed version .
now start engine.
see if that works.?
got 3 switch NP1 box or NP233c box. (part time 4wd offroad only()
or 4 switch NP8 box, np236' is not full time !!! it too is part time.
not sure what box is there me, ever, only RPO and rear tag on box tells me what is there.
NP# is RPO code off your cars RPO list
Is the transfer box dry, the pumps love to wear a hole in the case and leaks dry, did it?
quote the 236 pages (wobble eats out case)

A problem associated with the NP236 transfer case is input and or output bearing wobble wearing out the case. The case material is magnesium which can build up heat in the unit causing failure of range fork and range hub, we recommend that these items be replaced during the rebuild cycle. The NP236 is also susceptible to problems caused by running the NP236 transfer case on hard surfaces like concrete or asphalt. Run 4WD only on loose dirt, snow, mud, sand or grass as the different wheel speeds in turns can put excessive torque loads on clutch, chain and sprockets.
join a real; GM forum , tell them your vin and this allows RPO to be pulled up and your transfer case, is now known, if still OEM stock.

Hey Victor,, get one of these..it WILL come in handy


Nissan Frontier Xterra 2WD 4WD 05 12 Haynes Online Manual
Nissan Xterra 2005 2014 Nissan Frontier 2005 2014 Repair Manual

Depending on the sub-model, 2005 - 2012 versions *can* fit. Look for yours in the list below:

• Fit note: Crew Cab Pickup, Extended Cab Pickup

This product fits the following Nissan Frontier submodels

• 2013-2013: Desert Runner; 6 Cyl 4.0L;
• 2011-2013: S; 4 Cyl 2.5L;
• 2011-2013: SL; 6 Cyl 4.0L;
• 2011-2013: SV; 4 Cyl 2.5L;
• 2011-2013: SV; 6 Cyl 4.0L;
• 2009-2013: PRO-4X; 6 Cyl 4.0L;
• 2011-2012: S; 6 Cyl 4.0L;
• 2008-2010: SE; 4 Cyl 2.5L;
• 2005-2010: LE; 6 Cyl 4.0L;
• 2005-2010: SE; 6 Cyl 4.0L;
• 2005-2010: XE; 4 Cyl 2.5L;
• 2005-2008: Nismo Off-Road; 6 Cyl 4.0L;

When calling to inquire or order - tell them the year, make, model (S, SL, SV, LE, SE, XE, etc.) Cab type (crew, extended, etc.) before paying. Have a look at the link below.

2005 2012 Nissan Frontier Tail Light Replacement Driver Side...

FSM time
ever heard of the FSM. its a magic book that tells you how to do the diagnosis of all parts on car.
get one.
alldata.com is a close subs.

If it doesn't start every time I would double check for loose connections on the battery terminal. When it doesn't start, try wiggling the battery connections and try starting it again. Then you would want to fix the loose terminal connections. The spark plug gap does seem to be a bit big. I would just make a phone call to your local auto part store and they can tell you the exact gap that it should be.

We have no wiring diagrams here at fixya, sorry,.

ground not making good connection to frame by gas tank sending unit ground

If the turn signal bulbs are the same as the turn signal bulbs it would indicate the brake light on the left is not working. If the brake lights AND the right turn signal come on it could indicate a wire is getting a cross feed from an improper source. If you are comfortable with electrical systems - If you have a tow package you may want to check the wires to the trailer. Otherwise have it checked by an electrical shop.

You may need new coilpacks.

You can buy a battery at any reputable auto parts store- even Wal Mart carries batteries.

They should have a battery that will fit your truck.

If your battery is the original, it should have a part number like 9999MP-NB24F... I can't remember right off the top of my head which group size the Frontier takes. It's either a 24 or 35, I believe (which would be the NB"XX"?... the letter designation may be different also.

If you find that number (let's just say it's a 24), you can get any Group 24 battery. The group number indicates specific exterior dimensions of the case. You should look the battery up for the application.

Nissan uses Interstate batteries, by the way...

Nissan Scope Technician- 10+ years experience in Nissan dealership.