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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1326 (Instrument Panel System Displays, Gauges And Console) >> Diagnostic Information and Procedures >> Fuel Gage Inaccurate or Inoperative

Fuel Gage Inaccurate or Inoperative

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Fuel Gage Inaccurate or Inoperative

Step Action Values Yes No
1 Did you review the and perform the necessary inspections? - Go to Step 2  Go to Diagnostic Starting Point - Instrument Panel, Gages and Console 
2 Verify that the fuel gage is inaccurate or inoperative.
Does the fuel gage operate normally?
- Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3
  1. Disconnect the fuel sender connector.
  2. Turn the ignition switch to the ON position.
Does the gage read empty?
- Go to Step 4  Go to Step 6 
4 With the fuel sender connector still disconnected and the key still in the ON position. Connect terminals 2 and 3 on the vehicle side of the connector.
Does the fuel gage read full?
- Go to Step 5  Go to Step 6 
5
  1. Remove the sender from the fuel tank
  2. Measure the resistance between terminals 2 and 3 of the fuel sender connector for each float position.
Does the fuel gage indicate the appropriate reading at the specified resistance values?
Full-4Ω
1/2-55Ω
Empty-107Ω
Go to Testing for Intermittent Conditions and Poor Connections Go to Step 8 
6 Test for an open or high resistance in the low fuel indicator circuits between the fuel level sensor and in Instrument panel cluster.
Does an open or high resistance condition exist?
- Go to Step 7  Go to Step 9 
7 Repair the open or high resistance in the low fuel indicator circuit between the fuel level sensor and in Instrument panel cluster. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
- Go to Step 10  -
8 Replace the fuel sender. Refer to Fuel Sender Assembly Replacement in Engine Controls.
Did you complete the repair?
- Go to Step 10  -
9 Replace the instrument cluster. Refer to Instrument Panel Cluster (IPC) Replacement  - Go to Step 10  -
10 Operate the system in order to verify the repair.
Did you correct the condition?
- System OK Go to Step 3