My engine sputters while driving, at any speed and in any gear

my guess is the gearing , that reverse has is very low.
and with lower gearing a weaker engine can run
id bet you if you use your right foot, on the throttle as you
go to drive, it will move, or use L gear.
the sputter, is not related to the transmission
Sputter is gross misfiring of the engine, 4.0L?? what engine?
and the top cause of that. is not getting a tune up.
spark plugs. ever do those in 10 long years.'
or spark wires>?
filters, fluids and spark? a tune up.
the Jeep runs a map sensor, so does not sputter with air leaks.
the jeep IAC can stick. and not hold an idle ,in drive.
but you can with a fast right foot, if not , its gross misfire for sure.
your right foot is not gas its air
when you press the throttle you add air and the EFI matches air with fuel. in that order
so if it still sputters, is not the lack of air. see?> spark is next,.

for 100 years folks avoid tuneups, is that you? the classic cause?

sputters in the context if engine, means MISFIRING, is it?

for a transmission, they dont sputter. sorry

but can jerk, or snatch, (being caused by gears engaging way to late)

(aka, harsh shifting) the opposite of slip

but it can slip then engage, causes a jerk. or harsh shifting.

see?

they do 100 things wrong, mostly never to sputter.

they don\'t shift up or down

they slip. (bad tranny)

if engine sputters, its tune up time, (posted like 10,000 times here)

if the transmission has issues, have real mech test it and tell you

all the symptoms, and possible ideas.

why not?

the A/T is a very very complex electro /mechanical device.



sputter is a word best for engines. like chain saw with a bad spark plug it sputters along and stalls.

does your car stall?

When you say "sputters at 2000 rpm" , are you referring to ANY time the engine is at 2000 rpm - meaning in Park, when you are just goosing the throttle, or in gear when you are accelerating, or at highway speed in high gear? If you are experiencing a "shuddering" in the engine at certain speeds/rpms - especially if these are speeds you regularly cruise at (long commutes at steady speeds), the problem could be in the Throttle Position Sensor (TPS). They have a tendency to wear unevenly if you drive a certain steady speeds. Eventually, the problem would progress to an engine code, but it may occur without setting the check engine light.

Is the check engine light on ?
Fuel in the oil could be a faulty injector or the fuel pressure regulator.

SOUNDS LIKE A VACUM LEAK OR A HOLE IN YOU AIR INDUCTION TUBE ( BIG BLACK FLEX PIPE) BETWEEN MASS AIR FLOW SENSOR AND MOTOR

Hi,
Could be ignition coils failing or injectors. Don't know the mileage on your car, but could be worn out engine too. Change your oil often?

Only 1000-2000 RPM? Does it do that in any gear?

If you need further help, I’m available over the phone at https://www.6ya.com/expert/oscar_403cc49e0f00cda7

spray some wd 40 on wires to get the water out and then spray them with some silicone

The idle air control solenoid could be bad. give the engine a vacuum leak and see if that helps any

IT LOOKS LIKE YOUR FUEL PUMP IS GOING BAD