Fuel gauge issue
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From: Ft lewis,Ft sill and thats all i hope.Katy texas
Fuel gauge issue Ok i filled the z up last night and i drive around and notice this..... The fuel level slowly goes to 3/4 tanks then to 1/2 tank i turn the car off and back on and its fine again all the way to full. Today i drive for a few it does it again but goes back to full on its own and stays there has anyone else had this issue??? Also my fuel pressure is right around 60 psi so i dont think its my pump going out.... Any help would be greatly appreciated
thanks
evan
thanks
evan
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Ok i filled the z up last night and i drive around and notice this..... The fuel level slowly goes to 3/4 tanks then to 1/2 tank i turn the car off and back on and its fine again all the way to full. Today i drive for a few it does it again but goes back to full on its own and stays there has anyone else had this issue??? Also my fuel pressure is right around 60 psi so i dont think its my pump going out.... Any help would be greatly appreciated
thanks
evan
thanks
evan
Thread Starter
TECH Resident
iTrader: (24)
Joined: Oct 2004
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From: Ft lewis,Ft sill and thats all i hope.Katy texas
weird, this is the first time it happened though thats what gets me..... i have a feeling something else is going out unfourtanetly!!
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Instruments - Erratic Fuel gauge Readings/DTC P0463 Set
Bulletin No.: 05-06-04-041A
Date: November 09, 2005
TECHNICAL
Subject:
Erratic Fuel Gauge Readings, Fuel Gauge Reads Empty When There Is Fuel In Tank, DTC P0463 Set, Service Fuel System Message Displayed (Replace Left Fuel Tank Level Sensor)
Models:
2004-2005 Cadillac XLR
2003 Chevrolet Corvette (Built After December 2002)
2004-2005 Chevrolet Corvette
Built Prior to December 2004
Attention: For the 2003 Chevrolet Corvette, this bulletin only applies to vehicles with the FFS fuel system.
Supercede:
This bulletin is being revised to correct an add condition within the Warranty Information. Please discard Corporate Bulletin Number 05-06-04-041 (Section 06 - Engine).
Condition
Some customers may comment that the fuel gauge is erratic or reads empty when there is fuel in the tank. Also, the driver information center may display "Service Fuel System."
Upon investigation, the technician may find DTC P0463 set.
Cause
This condition may be due to the following causes:
^ The sender card has insufficient ink and looses electrical contact when the tank is over filled.
^ Loose or poor connections at the PCM.
Correction
Check the connections at the PCM/ECM using the proper pin drag test. Use care to select the proper pin for testing. Refer to PCM/ECM Connector End Views in SI in order to identify the correct pin. If all connections check good, then replace the left fuel tank level sensor with P/N 88967316.
Right fuel tank senders are rarely faulty and should only be replaced if diagnostic information specifically indicates replacement of the right fuel tank sender or a DTC P2068 is present.
Bulletin No.: 05-06-04-041A
Date: November 09, 2005
TECHNICAL
Subject:
Erratic Fuel Gauge Readings, Fuel Gauge Reads Empty When There Is Fuel In Tank, DTC P0463 Set, Service Fuel System Message Displayed (Replace Left Fuel Tank Level Sensor)
Models:
2004-2005 Cadillac XLR
2003 Chevrolet Corvette (Built After December 2002)
2004-2005 Chevrolet Corvette
Built Prior to December 2004
Attention: For the 2003 Chevrolet Corvette, this bulletin only applies to vehicles with the FFS fuel system.
Supercede:
This bulletin is being revised to correct an add condition within the Warranty Information. Please discard Corporate Bulletin Number 05-06-04-041 (Section 06 - Engine).
Condition
Some customers may comment that the fuel gauge is erratic or reads empty when there is fuel in the tank. Also, the driver information center may display "Service Fuel System."
Upon investigation, the technician may find DTC P0463 set.
Cause
This condition may be due to the following causes:
^ The sender card has insufficient ink and looses electrical contact when the tank is over filled.
^ Loose or poor connections at the PCM.
Correction
Check the connections at the PCM/ECM using the proper pin drag test. Use care to select the proper pin for testing. Refer to PCM/ECM Connector End Views in SI in order to identify the correct pin. If all connections check good, then replace the left fuel tank level sensor with P/N 88967316.
Right fuel tank senders are rarely faulty and should only be replaced if diagnostic information specifically indicates replacement of the right fuel tank sender or a DTC P2068 is present.
