Engine dies within a second after starting and sometimes won't crank
2002 Grand Am. When I turn the
key to start, sometimes it won't
crank, after putting it in start for
more than 4-5 seconds it cranks,
but engine stumbles and dies
within 2 seconds. Have changed
the battery, starter, knock sensor,
cleaned, throttle body and idle air
control valve, checked throttle
position sensor, checked spark on
#6 plug ok, checked alternate ok,
checked wires, found yellow
brown wire harness from coil pack
burn wire loom covering. Check
engine light stays on after after
dash board 2 second bulb test,
Along with oil and battery light. No
codes on my Autel scanner.
Stranded need help immediately!
This is a very common problem on GM vehicles. The security system is notoriously known to fail. Basically when you insert your key, the system checks for a certain signal. If the system cannot get the correct signal from the key, it assumes the key is incorrect or you are attempting to steal it. The system then goes into SECURITY lockout mode. (prevents vehicle theft) This will either turn off the starter, or the fuel injectors. Symptom of fuel injector shutdown is literally starting for 1-2 seconds and then stalling out like yours is doing. This has been happening with GM's for a very long time. There are ways to bypass this now. Google these for info: diy-gm- security & new rockies
