Question about 1988 Toyota Corolla 4 Door
What you probably have...is a worn out fuel gauge sending unit. It is not worth the trouble to fix this unless you can do it yourself, or have someone fix it for free ( a brother or relative) If it works at 1/4 of a tank, then that is all you really need so that you don't run out of gas. The sender is a coil of fine wire wrapped around a small fiber or plastic wafer. Then there is an electric contact that slides along this coil and the resistance changes in proportion to level of fuel in the tank. This allows a variable signal to be sent to your fuel gauge in the dash, that corresponds to the level of fuel in the tank. The contact, and the coil are both metal, which wear out after time. Sorry. Chip
Posted on Nov 25, 2008
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The fuel filter is serviced only as part of the left fuel level sensor assembly in the fuel tank
1. Remove rear seat bench
2. Fold carpet forwards
3. Fold back rubber mat
4. Remove the nuts and fold back metal cover
5. Disconnect electrical connector
6. Release and disconnect fuel feed and return lines
CAUTION: The fuel gauge must roughly indicate zero before the left tank opening is opened. Large quantities of fuel may emerge upon opening. If necessary, keep the left tank opening closed and feed an extraction hose through the right service opening to the left tank half and drain the fuel out of the left tank area before proceeding.
7. Release the screw cap
8. Carefully raise fuel level sensor until sensor flange emerges.
CAUTION: Risk of breakage! When raising sensor unit, do not pull excessively on connecting piece of fuel return line.
9. Disconnect line to fuel filter
10. Disconnect suction jet pump from fuel filter (Press catch downwards to detatch suction jet pump)
11. Remove left sensor unit from the tank.
12. Reverse order to install
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