My wife's chevy venture van was skipping on the way to church. Then on the way home it stalled and when she started it back up ,the engine was shaking and would not remain running.

The pk3 system has a sensor ring around the lock cylinder these go bad a relearn will not fix this because no security code is being sent to the pass key module.

on mine was the pcv valve line broke and the valve line to the fuel regualator jus put right size rubber hoes on it and was fixed doesnt stall now if still stalls the hose you put on isnt tight enough and leaking air has to have good air flow so check all vaccum lines if still stalls

The most common reason why a fuel injected engine will not idle is either a dirty throttle body or a faulty idle air control valve.
The computer controls idle speed by regulating how much air enters the intake manifold.

needs the water system back flushing out, heater being cold is its blocked up some time a few back flushes and forward flushes with a hose pipe should free up the dirt inside, same with the engine and radiator. there are meany videos on you tube to help you understand how to back flush you engie. but do the radiator and engine and heater separate so the muck does not go back into the engine.

Testing is the way to a fix . Fuel pump pressure testing , electrical testing . Viewing engine sensor data on a scan tool . Instead of guessing as to the problem learn to test or take it to a qualified repair shop . Changing ECU without doing it correctly can cause problems that were not there before . PCM - engine computers need to be programmed , dealer only.
GM Fuel Pump Relay Testing
Testing Electric Fuel Pump Problems with Voltage Drop Test
048 Engine Hard to Start or No Start Scan Data for Starting Problems

most any sensor going bad can cause the check engine light to come on,try disconnecting the posative battery cable for 15 seconds ,then put it back on,will reset the codes, or take it to auto zone,they will test your computer for codes at no charge to you.i had a venture van my was ox. sensor. thanks robert b.

Remove the air cleaner and pour about a quarter cup of gasoline into the carburetor or throttle body. Do not stand near the engine when cranking it -- fire/small explosion hazard.

there could be several reasons for this type of problem. the engine is controled through main computer(ECM) and the sensors assocciated with it. most often times a hesitation is commonly a idle issue and that would be monitored by the TPS ( throttle position sensor) if this is beginning to fail it sends faulty reradings to the computer and the computer tries to compensate and sometimes either leans or richens the fuel air mixture cause and effect is a engine stall or a hesitation. another factor is your (O2) sensors these monitor your exaust and tell the ECM to adjust accordingly the fuel mixture also. a sure fire way to tell if one ore more sensors are faulty is to either have your check engine light come on or if there is a rough start. if the check engine light isn't on then i would think there is a timing issue involved and a tune up is in order. the tune up is simple by just changing plugs and wires, however the timing is computer controled and can only be adjusted by a certified tech with the proper equipment. try and change the plugs and wires first this is the least expensive way to solve your problem. if the problem persists then take it to a shop and have a tech hook up diagnostic tools to check the ecm for fault codes to narrow down whatsensors if any are faulty.

wow are you serious it takes alot to loss an axle it had to be making noise for a long time and for the motor to drop all the motor mounts had to be bad did anyone work on it and forget to put the mount bolts back in your talking your looking at about $800-1000 if it just needs all the mounts and axles

Hi , this can be caused by a bad, tps (trottle position sensor)also can check fuel presure and fuel filter,good luck.......