Is the security light flashing? If so, you 've got trouble codes stored and it's probably the anti theft system
The lamp is on the dash (FLASHING MEANS FAILURE)
open glove box , see users guide
see LAMP IMMO rules read it and if failing it will not start ever.
by DESIGN.
IMMO is so crazy now, owners are now sue maker for lack of IMMO
amazing brave new world, with chip shortages begging for more chips
. pure nuts.(sad to hyjacker me)
IMMO on this car is called PASSLOCK(tm)
so if it fails, the engine can not run, over 3 to 10 seconds.
page 2-12
I read it to you here, posted. pasted.
Your vehicle is equipped with the Passlock
-
theft
deterrent system.
Passlock is a passive theft
enables fuel if the ignition lock cylinder is turned with a
valid key. If a correct key is not used or the ignition lock
cylinder is tampered with, fuel is disabled.
During normal operation, the will go off approximately
five seconds after the key is turned to the RUN
ignition position.
If the engine stalls and the SECURITY light flashes,
wait about 10 minutes until the light stops flashing
before trying to restart the engine. Remember to release
the key from START as soon as the engine starts.
If the engine does not start after three (3) tries, the
vehicle needs service.
If the engine is running and the SECURITY light comes
on, you will be able to restart the engine if you turn the
engine off. However, your Passlock system is not
working properly and must be serviced by your dealer.
Your vehicle is not protected by Passlock at this time.
You may also want to check the fuse (see "Fuses and
Circuit Breakers" in the Index). See your dealer
for service.
it is and was an option new, and we never ever ignore it , if present.
2001 is 10 4.3 stars right now then when I go to drive it it's just is hard to start again2001 S 10 4.3 stars right now then when I go to drive it it's just stop then is Hard to start again I did a complete tuneup change to the fuel filter still does the same thing just now
hy-jacked 2018 post (and is not same as OP)
Frank there are 50 causes for engines not to start or stalls.
and a bevvy of tests using tools , meters and a real scan tool.
if hard to start and the IMMO lamp not ANGRY (1st step) the try starts with 5% right foot
this adds air, and works with IAC/ISC , stuck closed.
if fail, crank with right foot WOT , all the way down. this is secret Unflood mode
that can cure too much fuel injected.
thIS wot mode, cuts injector dead, to clear a flood
(fuel flooding means way way too much fuel)
when did car last run perfect, last month/year or decade?
if fuel is old it is bad.
1999 = distributor spark , cap, rotor ,plugs and get rid of those nasty junk HV wires sets, ? 23 years old?
and use NGK mag wires sets? OMG more spark is great.
using NGK wires.
the if still dead, crank and scan at the same time for 15seconds, see if P03xx errors pop
if spark and IMMO both good
we can start engine with spray test fuel
even with fuel pump relay pulled.
and will run for 3seconds each time and repeated too.
to see if engine sounds good.
if not compression or leakdown test is down.on each cylinder.
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Yup, the 3 seconds you describe sounds exactly like security failure. http://www.diy-gm-security.com/
SOURCE: car starts but dies after 2 or 3 seconds
try replacing the throttle positioning sensor its on the throttle body
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have you checked the electrical portion of the egnition yet?
SOURCE: My 99 Alero starts up then dies after 1 second. I
check air flow duct where the throttle valve is . check the pvc valve . make sure it isnt stuck open. check the egr valve . it will stick open stall out motor .use a scanner it will tell you if you got egr valve problems. check fuel pressure. it could be stop up fuel filter bad fuel pump fuel pump relay.your car problem sound like a major vacuum leak . change spark plug and wires if they have not been change in a while. it could idle air control. hook a scanner .it could give you a code.
SOURCE: car starts then it dies
I am having some issues with my 99 Malibu and noticed they have a recall on the fuel pump. It leaks! Call a dealership to get it fix for no charge.
SOURCE: I have a 2002 chevy s10 blazer it starts then dies
Have you checked out the carburetor for dirt?
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