have the ignition check to see if its worn. if the theftlock/passlock system doesnt recognize the key it wont let it start
TRY TURNING THE KEY OVER.
1998 chevy blazer wont start good spark and good fuel presure
check for a blown fuse.
when it wont start
There is a switch for that. It is in the dash illumination brightness control switch.
dont no
try the fuel pressure regulator
check heater fan to see if it is working.
mine does that too
The engine needs fuel, compression and spark to run. You are missing one of those. Whoever did the install forgot something.
time for a major tune up
Yes, and I would like to know where the fuel pump is located.