Inaccurate/Erratic Fuel Level Gage Readings (Install New Sensor, Strainer and/or RH Fuel Sender Assembly)
| Subject: | Inaccurate/Erratic Fuel Level Gage Readings (Install New Sensor, Strainer and/or R.H. Fuel Sender Assembly) |
| Models: | 1997-2000 Chevrolet Corvette |
Condition
Some owners may comment about inaccurate/erratic fuel level gage reading conditions such as those indicated below:
| • | Fuel gage suddenly drops to E (empty) and CHECK GAGES message illuminates (DTC P1431 or P0461 set). |
| • | Fuel gage does not go to F (full) after filling fuel tank. |
| • | Vehicle runs out of fuel while the gage still indicates fuel is available. |
Cause
The conditions indicated above may be the result of one or a combination of more than one of the causes indicated below:
| • | Stuck or intermittent sticking of the sensor float arm. |
| • | Clogged/restricted R.H. fuel sender assembly jet pump. |
| • | R.H. jet pump unable to transfer fuel due to fuel vaporization resulting in bubble accumulation in the fuel strainer. |
Correction
Inspect the Julian date codes located on the bar code labels attached to the R.H. and L.H. fuel level sender assembly cover plates as shown in the figure. If the R.H. sender date code is less/smaller than "01301", replace the complete assembly with a new fuel sender kit indicated below by model year. If the L.H. sender date code is less/smaller than "32791", replace the existing fuel sender sensor and strainer with those components contained in the applicable sensor and strainer kits shown below by model year.
To insure correct installation, follow the service procedure contained in the applicable Service Manual and the instructions contained in the service kits.
Parts Information
Part Number | Description |
|---|---|
88896043 | R.H. Fuel Sender Kit (1997-1999 M.Y.) |
88895126 | R.H. Fuel Sender Kit (2000 M.Y.) |
88899034 | Fuel Sensor Kit (1997-2000 M.Y.) |
12458245 | Fuel Strainer Kit (1997-1999 M.Y.) |
12459862 | Fuel Strainer Kit (2000 M.Y.) |
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
L1200 | Fuel (Tank Unit) Seal and/or Pump Assembly - Replace (RH or LH) | Use Published Labor Operation Time |
*L3502 | Fuel (Tank Unit) Seal, and/or Pump Assembly - Replace (Both) | 1997-1998 1.7 hrs 1999-2000 1.8 hrs |
*This is a unique labor operation for use in this bulletin only. It will not be published in the Labor Time Guide. | ||
