econditioned module cheaper. Automatic Transmission

2001 nissan xterra whines when first taking off and jumps into first gear

auto transmission

2001 sport trac. The truck dies when I put it in drive. the check engine light didnt come on either.

Has been checked to see if something is draining battery. nothing found. Replaced battery a couple times. Happens more in cold weather but still happens if I don't drive the car for a day.

specifically the starter fuse

interior light stay on too long

also the temperature is always very low and the fuel consumption is very high not normal for this vehicule.

I want to change the thermostat as soon as possible but am worried that has been like this far too long and now may be vibrating because some other failure that this could trigger.

i just buy the car and want it to stop vibrating.

thanks for any recommendation of what could be.

When I drive, my 2nd gear only works for about 500 RPMs and then moves on to the 3rd gear. It was not doing this before and Im not sure if I need a new transmission or maybe fluid?

When I brake, a rattling noise begins from inside the dashboard and then stops when the car comes to a stop. Its not anything to do with the brakes or tires.

or should i go to a mechanic

i just replaced plugs, oxygin sensors,( all 4) fuel filter,and front belts, It did the same thing last year, mechanic replaced one of the coils and a sensor. it ran ok until now with the cold weather

ABS is always on then I drive a little bit and the 4WD comes on?

Once car starts the 4WD light comes on

I purchased this van cheap the previous owner had the timing belt replaced after the distributor locked up but he had problems with it not running correct after that! So I bought it for next to nothing and found that the cam timing gear that drives the distributor has a couple teeth missing & it jumps time occasionally. My question is how costly of a job is it to replace it?