Have to wait till automatic choke goes off or wait tll engine warms and revs die down.some times it takes 2 ro 3attempts to achieve drive with no stalling .happens even in warm weather wet ordry
revs are high .goes to 1500 and goesdown to 900
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My car runs good when it's cold but stalls once it warms up? ... In this situation, you can usually re-start the engine once it has hada chance to cool back ... it'll fill-up and exits fuel right up and out the vent tube which dumps it down the middle of ...
Engine stalls or RPM
fluctuates at idle up and down or dies near idle.
is commonly caused by a dirty automatic idle speed control valve and
throttle valve but always run a OBD2 fault code as well as the
cleaning procedure. Buy a can of throttle valve cleaner (do not use
carburetor spray cleaner!) from NAPA or Carquest (made by CRC
chemicals) and spray it into the air intake while the engine is
running, use up about 1/2 the can, engine will try to stall hold the
speed up, shut it down and let it soak for 30 minutes, restart and
blow out the remaining fluid, shut it down and disconnect the
negative battery cable for 5 Min's to reset the base idle control
If the engine has a carb, I would say that the choke is stuck open. Check and use some penetrating oil to free the choke butterfly valves. Spray on the shaft and move the valves till they operate freely. If it is an automatic choke see that it opens and closes as the engine heats and cools.
the engine tickover is too slow when the engine is cold its running on cold start, ie:choke,, after it warms up the engine slows down this is what is causing it to stall in gear,, get some one to hold the brakes hard on and with the engine running in gear ajust the tick over till its reving at 750 - 850 rpm the revs will go up a bit when its out of gear,, before you pick a gear to go into push the foot brake down to stop the car lurching,,,
I had a similar problem and it turned out to be the rubber fuel lines being old and cracked. The hoses would warm up and fuel would squirt out of the cracks. I had to replace three fuel line hoses and it has been running great ever since. Good luck.
Check the coolant temperature sensor. It is situated in the inlet manifold at the back of the engine bay. This basically acts like an automatic choke and tells the ECU to increase fuel mixture when the engine is cold.
I replaced many many of these to Renaults, Peugeots and Citroens for this exact fault.
since its a 1997 your jeep has EFI, electronic fuel injection. The most probable reason for your troubles would be the injectors or a problem with the computer controling them, not allowing enough gas to be pushed into the cylinder causing stalling or lack of power, also too much gas iin the cylinder can lead to back firing and stalling. This would also explain the reason it takes so long to start back up some times, all the excess gas in the cylinder is flooding the motor and u have to wait till the gas disipates till the engine will turn over.