I have a Beretta (a '96 but I think it could be the same thing), and when my water pump was going out,it caused it to stall ALL the time after it would warm up. I didn't realize a water pump would even effect something like that. But check your pump- if it's moving side-to-side like it looks like it could slide right off,it needs to be replaced.That will fix the stalling,I promise you.Other reasons? Don't know. if its an automatic tranny open the hood look down to the tranny and you will see a sensor with two wire coming off it cut these two wires and the stalling will stop.my 93 stalled all the time,drove me nuts and my local mechanic showed me this sensor and said its something gm put on for no good reason and discovered that diabling it was best so he cut these wires and i havent had a stall since.
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Most of the time it is an electrical component that fails when it gets hot.
Hey tom its a 1990 pontiact transport van and it starts out fine and as soon as the vehicle warms up it will stall it will start back up but when you put it in gear from park it stall again until cool?
Possible dirty fuel injectors or TPS sensor.
I would suggest that the Choke is switching off and then the idle is set too low
cold start switch on the side of or on top of the throttle body.
try 92 octane or higher.
Try to replace the oil filter if the transmission is not engaging when it's cold.
in my case it was a coolant sensorbut you really need to read the codes
low fuel pressure most likely fuel filter
tcc switch on the top of the trans. Just unplug and drive away.
ECM