I have a 1996 jeep cherokee witha 4.0l.when you excelirate the gas peddle it sounds like it is missing popping out the exsaust and air cleaner and it idles great also when you turn the ignition to start it just cranks,when you let the key go it starts.

Try and get code when lite comes on , but I had a similar problem and cylinder coils we're going bad. Take it to a jeep dealer and they'll fix it or try and find out which coil

Pops, while pushing the gas pedal, and back fires and smells like gas and shakes while pressing the gaspedal, on 91 jeep cherokee l 4.0
spark timing way off. or burned valves.
i dont think a 4L can change cam timing. (gears)
that is gross misfire,
so bad it backfires to the throttle body and air cleaner
in all cases is bad spark timing, or worse burned valves.
bad rotor & cap,?
doing a tune up get rid of that carbon tracked bad cap.
and timing magically works.
ever do a full tune up this decade or in last 60,ooo miles>
?

On the fuel rail towards the front you will see the fuel pressure regulator. It will have a vacuum hose going to it. Remove the hose and see if fuel comes out of the regulator. If there is fuel replace it.

Hi and welcome to FixYa!

It may just be the air cleaner that you hearing. It tends to make a whoosing sound during acceleration.

Hope this helps and thank you for using FixYa! Have a good one!

Follow the code, Replace the rear o2 sensor

This sounds like a bad idle air control valve, but also make sure the throtlebody is clean, use a toothbrush and some throtlebody cleaner, spray and clean with brush, make sure to open plate by having someone hold gas pedal to floor, after cleaning if truck still stalls then replace the idle air control valve,

OK...clean out the throttle body with carb cleaner and remove idle air valve from next to the tps...don't turn the plunger when cleaning and don't loose "o" ring seal. That may help.

U have to check you injectors, if this is not the problem check your fuel filter it not getting gas and then check your gas lines, Get a compressor and blow the lines out, Look for rust and dirt.

If this don't work try checking you injectors again then check to see if your getting enough gas? Pump the gas peddle then go to the hood and see if you smell gas? if not? it your fuel pump orFuel Filter, and or lines clogged up. If your getting gas up to the front of the motor then it in your injectors? it one or all.

chheck your tranny fluid. if it's ok, probably need tranny work done.

turn up your ile (rpm's) or your fuel filter is going bad, and it is not getting fuel which causes it to stall.

Most likely problem is dirt in the idle jets. If so, your carb needs a bit
of a cleaning.

As a temporary workaround, crack the gas open just a bit with your foot (so
it idles at 1,000 rpm or so) as you brake to a stop, then hold your foot on
the gas to keep it alive. This is an iffy proposition though, since you'd
have to brake with your untrained LEFT foot.