2000 Pontiac Grand Prix starts but stalls before it turns o

CRAIGIELYN

MEMBER
2000 PONTIAC GRAND PRIX
V8
2WD
AUTOMATIC
147,000 MILES

I got stuck in a snow drift, and tried to un stuck myself. During this my car stated to stall. It is now towed out of the snowdrift. It will start but not turn over. Ie. It runs for 20- 30 seconds and then stalls. I have had no other trouble with it and it is well maintained. I live 20 miles from a service centre. Is there any alternative except to get it towed to the dealer. I have a hired hand who is an old school mechanic and is able to fix tractors and things.I do not have a scanner thing, but really do not wish to pay a tow for something that could easlly repaired withour going to a dealer

1 Reply

DAVE H

MECHANIC
13,383 POSTS

Hello. Thanks for the donation. Much appreciated

is the security indicator light flashing?. Or do you have the MIL/CEL.(Check engine light) on/flashing
let me know.

PASS-KEY(R) III SYSTEM
The PASS-Key(R) III system is designed to prevent vehicle theft by disabling engine unless an ignition key with a specific electrical value is used in the ignition key lock cylinder. When ignition key is inserted in ignition lock cylinder, wire coils surrounding ignition cylinder energize a transponder pellet inside plastic portion of ignition key. The transponder transmits a unique value by radio frequency back to the coils in the PASS-Key(R) III module. When PASS-Key(R) III module detects voltage with ignition switch in RUN or START position, it measures transponder value received by coils. If value is valid, SECURITY indicator light remains on steady for 2 seconds. Module sends a pulse width modulated signal to PCM. If value is not valid, module does not send a pulse width modulated signal to PCM. If enable message is received by PCM, fuel system is enabled. If invalid message is received, SECURITY indicator light flashes once per second and fuel system is not enabled. If an illegitimate key is used or problem with system exists, SECURITY indicator light flashes twice per second and fuel system is not enabled. The password between module and PCM is unique to each module, preventing theft by replacing module or PCM. System components include ignition key, ignition key lock cylinder, PASS-Key(R) III decoder module, and PCM.