2004 Blazer won't start

:banghead: I have a 2004 Blazer with 45,000 miles on it. I t starting having this problem after the warranty expired. I would start it in the morning, drive it to the bank a few blocks down the street, and once I turned the ignition off it doesn't start after about 5 minutes. I tried tapping ont he solenoid, relays, and tried turning the ignition off and on. Sometimes these things work and sometimes they don't.

I thought I had it figured out once. I would turn the ignition off, open the door, wait for the Security light to flash, and shut the door . Then I would wait for the Feul gage to engage ( the feul gage would read Empty for a minute then engage to normal.) Once the fuel gage engages, I would try to start the ignition and it would work. Some times it wouldn' untill after a few tries.

Once it was started, I would't have any more problems for the rest of the day. Then it started getting worse, now it won't start at all. :banghead:

Is your security light flashing on and off. I so, it's in theft tamper mode.
Try this.
SYSTEM CHECK
1) Turn ignition switch to RUN position. If SECURITY light
illuminates for 3 seconds, then turns off, go to step 4). If SECURITY
light does not illuminate for 3 seconds, then turn off, go to next
step.
2) If SECURITY light flashes, go to step 15). If light is not
flashing, go to next step.
3) Turn ignition switch to START position. If engine starts,
go to step 15). If engine does not start, go to SYSTEM TESTS.
4) Turn ignition switch to START position. If engine starts,
go to next step. If engine does not start, go to step 8).
5) If SECURITY light is on, or customer reports light is on
during normal driving conditions, go to next step. If light is not
illuminated while engine is running, system is normal.
6) Using a scan tool, attempt to communicate with vehicle. If
communication exists, go to next step. If communication does not go to step 17).
7) Check for current Passlock(TM) or powertrain DTCs. If any
DTCs exist, diagnose and repair problem. For powertrain DTCs, see
appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. For
Passlock(TM) DTCs, see DIAGNOSTIC TESTS. If no DTCs exist, diagnose
and repair instrument cluster. See appropriate wiring diagram in
ANALOG INSTRUMENT PANELS - BLAZER, BRAVADA, ENVOY, JIMMY, SONOMA & S10
PICKUP article.
8) If SECURITY indicator is off, go to next step. If SECURITY
indicator is illuminated, go to step 12).
9) If engine cranked normally, go to next step. If engine did
not crank normally, go to step 11).
10) Check fuel delivery. See appropriate BASIC DIAGNOSTIC
PROCEDURES article in ENGINE PERFORMANCE.
11) Check starting system. See appropriate STARTERS article
in STARTING & CHARGING SYSTEMS.
12) If SECURITY indicator is on steady, go to next step. If
SECURITY indicator is not on steady, go to step 15).
13) Check for current Passlock(TM) DTCs. If no DTCs exist go
to next step. If any DTCs exist, go to applicable test under
DIAGNOSTIC TESTS.
14) Diagnose and repair instrument cluster. See appropriate
wiring diagram in ANALOG INSTRUMENT PANELS - BLAZER, BRAVADA, ENVOY,
JIMMY, SONOMA & S10 PICKUP article. After repair, go to step 18).
15) Check for current Passlock(TM) or powertrain DTCs. If any
DTCs exist, diagnose and repair problem. For powertrain DTCs, see
appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. For
Passlock(TM) DTCs, see DIAGNOSTIC TESTS. If no DTCs exist, diagnose
and repair instrument cluster. See appropriate wiring diagram in
ANALOG INSTRUMENT PANELS - BLAZER, BRAVADA, ENVOY, JIMMY, SONOMA & S10
PICKUP article.
16) Using scan tool, check for current Passlock(TM) DTCs in
TBC. If communication does not exist, go to next step. If any DTCs
exist, go to applicable test under DIAGNOSTIC TESTS.
17) Repair Class 2 serial data line communications. See
appropriate wiring diagram in DATA LINK CONNECTORS article in WIRING
DIAGRAMS. Go to next step.
18) Clear DTCs. Go to SYSTEM TEST.
SYSTEM TEST
1) Ensure system check has been performed. See SYSTEM CHECK.
After performing system check, go to next step.
2) Connect scan tool. Turn ignition on. Using scan tool,
check Ignition 1 input. Ignition 1 should be ACTIVE. Check Passlock
state. Passlock state should be Normal Decision. Check battery, fuses
and power to TBC module (Ignition 1 and power). Repair as necessary.
If repair was needed, go to step 14). If no repair was needed, go to
next step.
3) Using scan tool, check battery voltage. If voltage reading
is more than 8 volts, go to next step. If voltage reading is 8 volts
or less, repair power supply as necessary.
4) Turn ignition switch to START position. If engine cranks
fast enough to start, go to step 6). If engine does not crank fast
enough to start, go to next step.
5) Check starting system. See appropriate STARTERS article in
STARTING & CHARGING SYSTEMS.
6) Check resistance between ground and TBC module connector
C1 terminals A1 and B1. If resistance is more than 25 ohms, go to next
step. If resistance is 25 ohms or less, go to step 8).
7) Repair ground circuits. After repairs, go to step 14).
8) Using scan tool, check for communication to TBC. If
communication does not exist, go to next step. If communication
exists, go to step 10).
9) Repair Class 2 serial data line communications. See
appropriate wiring diagram in DATA LINK CONNECTORS article in WIRING
DIAGRAMS. Go to step 14).
10) Check for current DTCs. If no DTCs exist, go to next
step. If any DTCs exist, go to applicable test under DIAGNOSTIC TESTS.
11) Using scan tool, verify PCM/VCM is receiving password
from TBC. If PCM/VCM is receiving password, go to appropriate SELFDIAGNOSTICS
article in ENGINE PERFORMANCE. If PCM/VCM is not receiving
password, go to next step.
12) Reprogram TBC. Perform learn procedure. See PROGRAMMING.
Verify PCM/VCM is receiving password from TBC. Turn ignition switch to
START position. If engine starts, go to step 14). If engine does not
start, go to next step.
13) Replace TBC. Reprogram TBC. Perform learn procedure. See
PROGRAMMING. Go to next step.
14) Clear DTCs. Perform system check. See SYSTEM CHECK.
SELF-DIAGNOSTIC SYSTEM
Ensure all components are connected. Turn ignition switch to
RUN position (engine off). Connect scan tool. Check if scan tool
communicates with Vehicle Control Module (VCM/PCM). Check for
Passlock(TM) DTCs. See DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS
table. See DIAGNOSTIC TESTS.
DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS.
You'll need to check for fuel pressure, see if your getting fire to your spark plugs. And you might want to check to see if your truck has registered any codes in the computer. Advance or autozone can check the codes and will do it for free. Be sure and write the codes down if there are any. Let us know.
SC

I removed the starter and had it tested, the starter is good. I reinstalled the starter the next day and the engine started right up. I'm taking it to the dealer.

Might be the connection from the starter to the battery.

Make sure they are clean and tight.

When you initially turn the key to the "run" position does the fuel pump make the buzzing noise like they usually do. If it does after a few tries it might be the pump going, sometimes they have a dead spot on the motor and it just doesnt catch.

Yes I can hear the feul pump run then stop. The car would not turnover. I haven't had the problem since I took off the Starter to have it tested. Maybe it was a dirty connection.

Yea, I think it is a connection that needs cleaning.