2001 Pontiac Sunfire no start

HAL1046

MEMBER
2001 PONTIAC SUNFIRE

Engine Mechanical problem
2001 Pontiac Sunfire 4 cyl Front Wheel Drive Automatic 17400k miles

I have a 2001 pontiac sunfire 2.4l the car will not start it turns over. The fuel pump will not work but if I do a hot wire from the battery straight to the fuel pump it starts.I have checked all fuses and relays they are good. This car has a anti theft system installed at factory could this be the problem I get no engine lights that come on for service or check engine there are no engine codes that say there is a problem. When the computer to read codes is hooked up. At times the car will start with out having the hot wire from the battery other times it will not any ideas would the main cpu be the problem or or could tis be the ecu I also changed the map sensor out. Or could this be the anti theft system thank you

Just talked to the dealer ship they say that the sensor on the key egnition lock were you put your key in to start the car might be bad and with system check and new lock and to code it will cost about 400.00 canadian is this true

3 Replies

BMRFIXIT

MECHANIC
19,053 POSTS

If its the alarm system then will not fire up for you when u hot wire the fuel pump
I would check fuel pump relay
oil pressure switch
ignition switch
try this
turn key on does the fuel pump
if not cycle key again does it make any difference if yes
suspect ignition switch

SERVICE CAMPAIGN BULLETIN
Reference Number(s): 04002, � Date of Issue: � May 08, 2007 1998 BUICK SKYLARK; 1998-2001 CHEVROLET CAVALIER; 1998 OLDSMOBILE ACHIEVA; 1998 PONTIAC GRAND AM; 1998-2001 PONTIAC SUNFIRE Affected Model(s):
Related Ref Number(s): 04002
ARTICLE BEGINNING
SERVICE INFORMATION
Due to part availability, this recall is being conducted in three phases. Phase 1 will consist of 1998-1999 vehicles; phase 2 will consist of 2000 vehicles; and phase 3 will consist of 2001 vehicles. When sufficient parts are available to notify customers of 2000 and 2001 vehicles, you will be notified and will receive a new initiation report.
CONDITION
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 1998 model year Buick Skylark; 1998-2001 model year Chevrolet Cavalier; 1998 model year Oldsmobile Achieva; 1998 model year Pontiac Grand Am; and 1998-2001 model year Pontiac Sunfire vehicles. If the engine fails to start and the driver holds the key in the "start" position for an extended period, high current flows through the ignition switch, and sometimes produces enough heat to melt internal switch parts. If the switch is damaged, a fire could occur in the steering column, even with the engine off and the key removed. The fire could spread to the interior of the car, which could injure occupants of the car or cause damage to adjoining structures.
CORRECTION
Dealers are to install a relay kit and verify that the vehicle will start with a properly charged battery in good operating condition (adequate reserve capacity, or cold cranking amp

check if your car under recall go to
mygmlink. Com
and enter your car's Vehicle Identification Number (VIN).