New guy with another gas gauge question/problem

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Aug 26, 2003 | 07:47 AM

repmud

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From: Carlstadt nj

New guy with another gas gauge question/problem

I bought the car with 20,000 miles on it and the gauge was fine for about 5,000 miles. I am not sure what gas the original owner used but I am using Exxon 93 and the gauge is going to crap. I have done numerous searches for fixes on the problem and it looks like I need a sending unit. I have tried the Chevron Tech fuel injector cleaner, it worked for one tank of fuel and the it quit again. I haven't been able to find the procedure to fix this myself. Does anyone have info or pictures outlining how to change the sending units? Should I do both at the same time? Thanks

Aug 26, 2003 | 01:13 PM

repmud

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From: Carlstadt nj

Re: New guy with another gas gauge question/problem (repmud)

I contacted Jimman and got the pics he posted of the sending units. I am still looking for tank locations and how to remove them. If anyone has information regarding this please tell me.

Aug 26, 2003 | 01:16 PM

racetchr

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From: Charlotte NC

Re: New guy with another gas gauge question/problem (repmud)

2 tanks - located behind seats.

Aug 26, 2003 | 03:17 PM

Jeff Jeff

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From: DFW tx

Re: New guy with another gas gauge question/problem (racetchr)

I had the fuel sending units replaced 2 years ago and have been running Texaco gas since. I have not had the problem come back. Mine was fixed under extended warranty, so unfortunately I can't tell you how to do it.

Aug 26, 2003 | 03:49 PM

yellow1

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From: Haltom City TX

Re: New guy with another gas gauge question/problem (repmud)

Don't know exactly what your symtoms are but my guage would drop to zero at the 1/2 tank point. 1st fix was to replace the sending unit(s) 9000 mi 2nd was a recalibration of the fuel system (dtc p1431 code) 19000 mi. (both under warranty) Seems fixed at 30k. something to do with the additives in some fules coating the sensor.

Aug 26, 2003 | 04:00 PM

lager99

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From: [Enter Unoffensive Comment Here]

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St. Jude Donor '06

Re: New guy with another gas gauge question/problem (yellow1)

MINE HITS EMPTY THEN GOES BACK TO READING AFTER ABOUT 15 MINUTES.

Aug 26, 2003 | 04:35 PM

gbm

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From: Pleasant Hill CA

Re: New guy with another gas gauge question/problem (Jeff Jeff)

Chevron gas fixed me as per folks suggestion

:D

Aug 26, 2003 | 08:00 PM

0vetteshop

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From: FL

St. Jude Donor '13

Re: New guy with another gas gauge question/problem (repmud)

GM's most current fix is to program the PCM with an update,not replace the fuel senders :yesnod:

Erratic Fuel Gauge Reading (Reprogram the PCM) #02-06-04-010A - (06/27/2003)
Erratic Fuel Gauge Reading (Reprogram the PCM)
1999-2002 Chevrolet Corvette

This bulletin is being revised to add models and update the Correction and Warranty Information. Please discard Corporate Bulletin Number 02-06-04-010 (Section 06- Engine).

Condition
Some owners may comment about the fuel gauge intermittently indicating an empty reading and then return to the correct fuel level indication.

Cause
This condition may result when fuel blends containing aggressive sulphur compounds react with the fuel sender assembly, which may result in voltage spikes being induced on the fuel level signal to the PCM. Use of another fuel blend may reverse this reaction and return the system to normal operation.

Correction
Reprogram the PCM with the new service calibration which is available in the June 2003, Techline® TIS release sent to the dealers on 6/28/03. Use the TIS Version 7 or later data update.