What else could be wrong with my Chevy Tahoe ? It won't start and it's acting like the fuel pump is out ?
redux 1. see next post, 5.3L , 8COPS, 8 injectors, present and sea of sensors sure EFI.
we learned this.
5.3L engine.
not told if Passkey there.IMMO, it can not be IGNORED or hacked if there, RPO tells if it is there.
RPO codes tell what was on the car sold day 1, RPM is GMs name for AS _BUILT
RPO tells if car is IMMO opted. and matters first.
symptoms so far:
cranks ok
starts and runs and dies fast my guess 3seconds fast but not told
if dies, use right foot to prevent the stall, and post her if it did or not.
NO SCAN tool used is a very bad thing, on any modern car.
buy one , rent, lease, barrow one, or have car savvy friend scan yours.
I bet the tool tells you what fails
1: bad fuses. all must be checked on modern cars as lots of communications bus, can fail fuse blown.
2: engine compression pass.
3: scans show X,y, bad, tell what it finds, and we tell you what to check next.
eg: P0341, cmp dead. or ckp dead or error that says , they are out of sync,(timed wrong means0
4: fuel pressure not at spec cranked, , using gauge per SM
5: not reading the SM here.
https://eautorepair.net/Marketing/Default.asp
RPO? google how to read GM RPO codes and where found on car body.
glove box, console box lid, trunk lid, spare tire lid or drivers door jam, edge 3D bar code for RPO and GM app that reads it fast. and easy .
then see if IMMO codes is in list
AUO =Remote Function Actuation - Keyless Entry – Domestic
VATS, PassKey, and PassLock
DTC B3055, pass key failure DTC errors or B3935?
and more car cranks but alternator is dead and after it runs battery voltage is too low.
and sets a DTC for weak battery as it fails.
use a charger to keep battery fully charged and test ALT For dead. 13v to 15vdc is good running later when it does.
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