Engine stalls while driving - 2001 Pontiac Montana

engine stalls when parked? or driving fast>? not told. engine stall is 0 RPM engine as in dead.
and restarts easy.
does engine STALL going from park to DRIVE or REVERSE.
that is a super rare even so rare I think it is just coincidence.
the cars cab heater, blower fan turned on low to high? at the dash knob HVAC.
or at engine fans, Radiator rear or font, fan, condenser HVAC.

first off the blower fan is fused, say about 20amps, and is never going to overload the battery or 100amp alternator ever, not possible. nor the GOOD engine,
wiring hacked yes. my answers or for NOt HACKED CARS OEM STOCK.

answer 2;
engine is very sick and weak, and RPM is too low say 600 not 800 or more.
so any load on the engine stall is it, blower or going in to drive.
in drive, foot on brake RPM is 800 hot or 1500 cold. not 500 ever.
those need to be known first.
or get the car services for SURE if you can demonstrate he failures. to them.
this answer if for any engine on the hair line cusp of stalling before it does stall.

see?

Radiator cooling fans not working? The ECM is protecting the engine by shutting it down.

Usually when a computer controlled vehicle stalls while driving it's related to the Crank Position Sensor.

A car stalls when the engine receives a sudden massive increase in load (think when you were learning to drive - releasing the clutch too quickly would cause the car to stall by transferring too much friction too quickly from the gearbox to the engine)
If the car only stalls when you are setting out from stationary then better engine/clutch control control is needed, or there is a problem with fuel or clutch. If it is an old car, try putting more choke on when pulling away.
If the car stalls all the time, the general reason is that there is probably either a fuel or an ignition problem causing the engine to cut out. Of course, there could be any number of things wrong with your car if it stalls during normal driving

If the fuel pump go bad, the car will stall while you are driving, as no fuel is getting pumped up to the engine. If the plug wires, plugs or coils in ignition system are bad and are causing the engine to misfire, the engine will run rough. This may also cause the car to stall when driving. There are other problems that can make a car stall in the ignition system, the fuel system or in the drivetrain. If the timing belt breaks, the car will stall. If the computer itself stops working, the car will stall. If you do need to replace any of parts for your Ford this site looks like it has cheap prices, free shipping and great reviews http://www.buyautoparts.com/

It can be low fuel pressure issue or clogged fuel pump. Or its engine related issues,---------------

Check the help link mentioned below to troubleshoot the problem: ------

Engine stalls when gas is given?

http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html

-------------

Car stalls when MAF sensor is connected?

http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html

------------

Car Engine Stalls While Driving?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html

--------------

Car stalls and throws white smoke from exhaust?

http://repairhelpcenter.blogspot.com/2012/01/car-stalls-and-throws-white-smoke-from.html

-------------

Stalls And Dies At Stop Sign?

http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html

------------

GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

------------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

-----------------

1992 Chevrolet stalls and shutdown?

http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html

------------

Stumbling and stalling at idle after engine rebuild?

http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

--------------

1990 mazda 323 stalls and quit running?

http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html

-------------

2000 Toyota Camry: Idling and Stalling Problem?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-idling-and-stalling.html

---------

1995 Toyota Corolla: Stalls, Sputters and Pops Through Intake Manifold?

http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html

----------------

1999 Toyota Camry: Erratic stalling and high engine RPM at idle?

http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html

--------------

Dodge Dakota stalls, stumbles at idle. Has low fuel flow and runs hot?

http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html

--------------

1994 Toyota 4Runner: Stalls and Stops While Driving?

http://whatisbyme.blogspot.in/2012/05/1994-toyota-4runner-stalls-and-stops.html

---------------

1997 Toyota Camry: Erratic Idle and Intermittent engine stalling?

http://technoanswers.blogspot.in/2012/04/1997-toyota-camry-erratic-idle-and.html

-------------

Ford Maverick: No Idle and Stalling issues?

http://schematicsdiagram.blogspot.in/2012/04/ford-maverick-no-idle-and-stalling.html

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These details will help.

Thanks.

It can be low fuel pressure issue or clogged fuel pump.Or its engine related issues,---------------
Check the help link mentioned below to troubleshoot the problem :------

Engine stalls when gas is given?

http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html

-------------

Car stalls when MAF sensor is connected?

http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html

------------

Car Engine Stalls While Driving?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html

--------------

Car stalls and throws white smoke from exhaust?

http://repairhelpcenter.blogspot.com/2012/01/car-stalls-and-throws-white-smoke-from.html

-------------

Stalls And Dies At Stop Sign?

http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html

------------

GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

------------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

-----------------

1992 Chevrolet stalls and shutdown?

http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html

------------

Stumbling and stalling at idle after engine rebuild?

http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

--------------

1990 mazda 323 stalls and quit running?

http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html

-------------

2000 Toyota Camry: Idling and Stalling Problem?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-idling-and-stalling.html

---------

1995 Toyota Corolla: Stalls, Sputters and Pops Through Intake Manifold?

http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html

----------------

1999 Toyota Camry: Erratic stalling and high engine RPM at idle?

http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html

--------------

Dodge Dakota stalls, stumbles at idle. Has low fuel flow and runs hot?

http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html

--------------

1994 Toyota 4Runner: Stalls and Stops While Driving?

http://whatisbyme.blogspot.in/2012/05/1994-toyota-4runner-stalls-and-stops.html

---------------

1997 Toyota Camry: Erratic Idle and Intermittent engine stalling?

http://technoanswers.blogspot.in/2012/04/1997-toyota-camry-erratic-idle-and.html

-------------

Ford Maverick: No Idle and Stalling issues?

http://schematicsdiagram.blogspot.in/2012/04/ford-maverick-no-idle-and-stalling.html

-------------
These details will help.
Thanks.

Vehicle starts but stalls.These types of problems are very common on most of vehicles.There are few possibilities,that can cause stalling problem on vehicle.The vehicle brand and model may differ but problem is same.------I provide you few suggested help link to troubleshoot these issue and solve the problem:-----------
1995 Toyota Corolla: Stalls, Sputters and Pops Through Intake Manifold? http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html
-------------1994 Toyota 4Runner: Stalls and Stops While Driving? http://whatisbyme.blogspot.in/2012/05/1994-toyota-4runner-stalls-and-stops.html
-----------1992 Chevrolet stalls and shutdown? http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html
-----------Dodge Dakota stalls, stumbles at idle. Has low fuel flow and runs hot? http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html
------------Engine stalls when gas is given? http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html
------------1990 mazda 323 stalls and quit running? http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html
------------Nissan Pathfinder stalls and bucks on Acceleration? http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html
------------Car stalls when MAF sensor is connected? http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html
-----------Car Engine Stalls While Driving? http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html
--------- Stalls And Dies At Stop Sign? http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html

-----------
These are few help links,that will help you to troubleshoot the issue and solve the problem.Please keep updated,if any more help required.Thanks.

COOLING FAN CLUTCH FREEWHEELING FAN CLUTCH NOT LOCKING IN TOO COOL THE ENGINE.ENGINE COULD BE RUNNINIG HOT THAT WILL STALL OUT ENGINE OR FAULTY FUEL PUMP WILL SHUT OFF ENGINE FOR A SHORT DRIVE DISTANCE.WHEN ENGINE STALL OUT CHECK FOR FUEL PRESSURE IF NOT ITS THE FUEL PUMP.

After driving for a while and the engine becomes hot, when you park the car for a while, does this "for a while" mean enough time for the engine to cool down or not?

The reason why this is important is because an engine can stall for a number of reasons, and finding out the conditions of its stalling obviously helps narrow down the cause of the stall.

If it stalls, you say, when the engine cools down after being parked for a while, this handy diagnostic article will help assess the cause of your problem:
http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Vehicle_Car_Zone_Cars_Trucks_Vans_Engine_System_Engine_Stalls_When_Cold.htm

If it stalls again, like you said, after warming up and driving for a bit, the ambient temperature may be too as well as the engine itself, which then you should be inclinde to read this diagnostic article:
http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Vehicle_Car_Zone_Cars_Trucks_Vans_Engine_System_Engine_Stalls_When_Hot.htm

You may very well be right its due to fuel starvation, particularly as to the malfunctioning of the EGR, as noted in the article.

I'm sure these articles will provide you with great insight.
Good luck!
Brad