When my 1997 Ford Probe started to do that we toke a look at it and found a few leaks in the Air Intake
Check for leaks in the intake manifold or a poor fuel pressure situation.
IF your 94 Probe GT has a new clutch, but when you are on a hill the car will not go, it could be the fuel line. This is especially true if it does not stall and does not rev up either.
possibly the intake manifold sensor Check the fuel pump, and the injectors/ carburettor.
For those Landcruisers that are equipped with a snorkel, it allows the vehicle to cross through bodies of water which normally would be impassable. The snorkel is attached to the air intake for the engine and effectively raises the location of the air intake such that the vehicle can drive through water that normally would be sucked into the air intake causing a stall.
intake gasket is leaking
Ignition problem ie damaged ignition wires or incorrectly gaped spark plugs. Fuel system malfunctions. Vacuum line leaks or air intake blockages.
A 1998 Honda Accord could stall because it is out of gas. The car could also stall because of a bad computer.
If the vehicle almost stalls when comming to a stop, you more than likely have a vacuum leak in the air intake tract of the Jeep. Check for disconnected or cracked hoses and fittings on the air intake and surrounding areas.
sensor or belt
sensor or belt
Try cleaning the Intake Manifold where the EGR valve is attached.
YES, That would be called a vacuum leak.