Typically, just age. Each gear of an automatic transmission is operated by one of a set of clutches or bands. When a band or clutch wears out that gear is through and the transmission will need to be rebuilt. The Valve Body controls pressures to different pistons in the transmission. At specific events the valve body causes pressure to be applied to the 2nd gear clutch piston and if the pressure is not sufficient the clutch may "slip", causing additional and premature wear. Driving a vehicle with insufficient ATF can also cause slipping and wear.
A bad transmission gear can cause your 1999 Nissan frontier to shift hard. Low transmission fluid can also cause the transmission to shift hard.
could be a worn pinion gear or bad U joint or both
Check the transmission fluid on the 1995 Nissan Altima. Bad fluid can cause the transmission to shift harder on parts that are more worn.
If would not be bad for a car engine to shift from third to second gear if you are traveling at 30mph.
Bad spark plug wires affect many areas of your vehicle. However, gear shifting in an automatic transmission is not one of them.
In automatic transmissions the second to third syncronizers always seem to go bad first, the syncronizers are worn, bad or gone. This is common in these transmissions. Also you might check your trans fluid level, sometimes a low level will cause the transmission not to shift correctly.
a bad driver?? Seriously, i could be the ECU
You need to replace the trans or rebuilted it if it's a stick shift the u have a bad gear if it a automatic then check the fluids in the trans if it good on fluid the it a bad trans or torque converter
Bad universal joint
a bad radiator -automatic portion of radiator not cooling off transmission
Poor driver or bad transmission.
1st step would be to change fluid and filter and see if any improvement
Bad oxygen sensor
Is it an automatic or manual if it's an automatic you may have a bad u joints and same for manual, as well as synchronizing gears may cause it to be hard to shift. Otherwise i'd say it's your u-joints
Is your clutch bad or wearing out ?
could be a number of things cracked distributer cap, bad sparkplugs bad plug leads,setting, or bad igntion condensor if automatic transmission,it could be automatic idle adjustment on engine
That would be a bad starter gear mesh. Gears not aligning correctly causes this. The most common reason for bad starter gear alignment is worn out gear on the starter or starter ring gear. One or both will need to be replaced soon.
if u have a manual transmission ur clutch is going out n u need to change it, if u have a automatic ur transmission is going bad and needs to be replaced
An automatic transmission tends to last longer, especially with new drivers. It controls gear changes automatically at the proper RPMs. In a manual, there is a much greater chance of bad shifts, resulting in clutch and gear wear.
You have a bad coil. if an automatic, it might not know wether to engage in 1st gear or 2nd gear
Your synchro is going bad.
If it is a front wheel drive vehicle it could be a bad CV joint. In a rear wheel drive car it could be a bad universal joint.
may be a bad or worn ring and pinion gear axel brgs' or low gear oil
because your transmission is going bad if it is stick let off the clutch slower but if it is automatic then your trans. is going.