Lost key to 97 grand am can start car with switch but teft system cuts it off ..how do I keep car running to move it till a later day?

check for worn wires under the dash shorting on the steering shaft
replace the ignition switch --not the key barrel and tumbler

a good lock smith can cut you new key from your serial number

the lamps you need to watch the lamps. they don't lie.
so now it dont start (but cranks)
the operators guide tells you what the lights mean, lost that.?
2 lamps are security or IMMOBILIZers have a lamp

• off means OK
• on means its bad ( locked out, )
• flashing means that system is sick.

generally. got both lamps? look carefully.

IMMO kills engine, if car is tired to start. with wrong key. (and or fob)
security is theft alarm. and some cut spark others cut fuel other cut
some even cut cranking,
does yours crank?
or cranks ok but wont start.
no matter the lamps are FIRST> never last. never replace parts until you know what the lamps mean.

see this?

http://newrockies.com/5232/need-know-gm-passkey-security-systems/

Passlock: System must detect proper R-code within ignition lock (or ignition switch) in order to start engine. Does NOT have chip in key.

look at the lamp, and do not dis believe it,

Pass key security system has (lost/failed too recognise key) try this; key out,key in,try too crank engine,release key leaving in run position for about ten minutes and/or till security goes out or remains on steady,this will relearn key if no other failures are present.good luck

SINCE CAR WONT CRANK. NOW IS THE TIME TO REPLACE THE IGNITION SWITCH KEY LOCK CYLINDER ITS BROKEN THAT WHY THE CAR KEYS WOULDNT TURN OFF CAR.DISCONNECTING BATTERY CABLES WITH CAR RUNNIMG WILL.SHORT OUT ALTERNATOR AND PCM.IF IN CASE YOU HAD TO REMOVE BATTERY CABLE REMOVE THE GROUND NEGATIVE CABLE FIRST.MAKE SURE ALL ELECTRICAL COMPONENTS OFF LIKE RADIO. AC SYSTEM OFF.THIS WILL PREVENT LARGE ELECTRICAL ARC FROM BATTERY THIS IS ONE TIME PROCEDURE IN CASE ENGINE WONT SHUT OFF ITS A GAMBLE BECAUSE IT WILL TAKE OUT ALTERNATOR AND PCM.REPLACE THE SWITCH AND KEY LOCK CYLINDER DONT KEEP STARTING CAR BY DISCONNECTING THE BATTERY CABLE YOU WILL DAMAGE IGNITION ELECTRICAL SYSTEM.

there is a cranksensor at back of engine top of bellhousing i think if you lay under vehicle on drivers side looking up where transmission meets engine you will see a little bracket with wires going into can be removed with long extension on swivel little hard to get new back in place and start bolts had customers wife,s jeep it would cut-off or not start she would get a ride he would go to vehicle later in day to see what happened and it would start he would think it was just her and nothing wrong but a day or two later same senario we finally nail it with cranksensor no more problem

Your "inmobiliser" system is actived.

The anti-theft feature prevents the car from being started when one of several anti-theft devices is faulty are have otherwise been activated. The problem you descibe might be the ignition swith, which is known to wear out quickly on those models. The system can be completly disabled only when the car is running (meaning the teft deterent system is inactive after the Passlock II system detects the proper key in the ingition). A wire can be cut that would perminantly disable Passlock II, meaning any key that opens the door (or a screwdriver) could start the car. If the ignition swtich goes out or this wire is cut while the engine is off (theft deterent system is active) then the car will have to be towed back to the dealer to have the ignition system replaced and reprogrammed.

I have called Chevy and asked how to fix this problem. If you turn the key to the on position, right before it cranks when the lights and radio turn on. Leave it there for ten minutes until the anti theft light turns off. Then turn the key to the off position and then try starting the car.

Rumour has it that it is a yellow wire to be cut. Do more research, but D O N ' T cut it with the engine off. See first paragraph above.

Hope this help (remember rated and comment this). Good luck.

You need at least 10.5 volts in the electrical system for the ignition keys to release from the switch. Be careful that you don't damage the ignition switch, or your going to have to replace it if the passlock system is damaged. Good luck and boost the battery to get the keys out of the switch.

no feul need a tranfer pump or pull feul line lose and turn key switch on if no feul
well bad tranfer pump

no rest switch that i know of, turn key on while listen for pump to run, tap on tank with rubber hammer to see if pump runs, hope this helps a little