Sensors got wet
It could because of the first gear is worn out. It would be a good idea to have it looked at by certified mechanic.
One thing that can cause this is a slipping automatic transmission. The clutches do not engage at first letting the engine run free, then they engage suddenly producing a slam or jerk. This will quickly destroy a transmission.
Transmission in need of SERVICE.
There are several things that can cause your automatic transmission not to go into first gear. The most common cause is low transmission fluid.
Is the car auto or manual? check fluidlevels first, have you noticed any burning smells prior to problem? Does it not engage in all gears including reverse?
Stripped transmission, low transmission fluid.
There are several things that can cause your manual transmission not to shift out of first gear or reverse. The most common cause is a broken shifting fork.
because that is just the type of car that does that.
There are several things that can cause your transmission to slip, while first pulling out. The most common cause is a worn drive gear.
A bad transmission gear can cause your 1999 Nissan frontier to shift hard. Low transmission fluid can also cause the transmission to shift hard.
First you should Check out your Transmission oil level that could cause your car too jerk into gear. The only other thing it might be if the transmission is going bad and you should have it checked by a transmission specialist
The first step is to find out how it is getting in there. Normal cause is a failed transmission cooler. That may be part of the radiator itself. After the cause is repaired, you will have to flush the cooling system until there is no more oil in it.The first step is to find out how it is getting in there. Normal cause is a failed transmission cooler. That may be part of the radiator itself. After the cause is repaired, you will have to flush the cooling system until there is no more oil in it.