Fuel level sensor in tank bad????

REMOVAL PROCEDURE
TOOLS REQUIRED
A J 34730-1A Fuel Pressure Gauge
A J 39765 Fuel Sender Lock Nut Wrench
CAUTION: Refer to Batterry- Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure. See:
Fuel Delivery and Air Induction/Fuel Filter/Fuel Pressure Release/Service and
Repair
3. Drain the fuel tank. Refer to Fuel Tank Draining Procedure. See: Fuel Delivery and
Air Induction/Fuel Tank/Service and Repair/Procedures
4. Remove the fuel tank.
5. Remove the fuel sender assembly.
6. Disconnect the fuel pump electrical connector (5).
7. Remove the fuel level sensor electrical connector retaining clip (6).
8. Disconnect the fuel level sensor electrical connector (7) from under the fuel sender
cover.
9. Remove the fuel level sensor retaining clip (4).
10. Squeeze the locking fangs and remove the fuel level sensor (3).
INSTALLATION PROCEDURE
1. Install the fuel level sensor (3).
2. Install the fuel level sensor retaining clip (4).
3. Connect the fuel level s ens oi electrical connector (7).
4. Connect the fuel level sensor electrical connector retaining clip (6).
5. Connect the fuel pump electrical connector (5).
6. Install the fuel sender assembly.
7. Install the fuel tank.
8. Refill the fuel tank.
9. Install the fuel filler cap.
10. Connect the negative battery cable.
11. Inspect for leaks.
11.1. Turn ON the ignition for 2 seconds.
11.2. Turn OFF the ignition for 10 seconds.
11.3. Turn ON the ignition.
11.4. Inspect for fuel leaks.

your fuel tank pressure sensor is part of your fuel pump assy and is replaceable without changing the fuel pump. sad news is you still have to drop the gas tank to replace it

Hello and welcome. this is caused by a bad fuel level sensor. the fuel level sensor is attached to the fuel pump assembly inside of the fuel tank. this requires the fuel tank to be removed to replace

Usually that is a bad fuel pump. Filter is not on the tank. Test it when it doesn't start, or listen, as when you first turn the key to "run", you should hear the fuel pump cycle.

you can get the required fuel pump for you car from the above link.you can also get proper details about the cost and the part from the above link before you order the fuel pump.http://www.autopartswarehouse.com/mmp/chevy~blazer~fuel_pump~parts.html check out this.keep updated for any further assistance. thanks.

No second fuel pump, note that it's common for the wire harness from the gas tank to the frame to go bad when manipulated to replace the fuel pump from the gas tank which is only a $15.00 replacement part. The fuel filter should also be replaced shortly after to ensure any dirt that got in the gas tank that the filter will collect will not restrict the flow of fuel to the engine. Good luck and keep me posted, be glad to answer any questions you may have.

it sounds like the level sensor on the sender (fuel pick up pipe in the fuel tank) is getting stuck. the level sensor is a float that is attached to the sender, and you will need to remove the fuel tank to get to it.

hope this helps.

The plug on the fuel pumps are common for being bad and burning up the pumps. But the new pump will come with a new plug.

That black box is likely the canister vent solenoid.