Speedometer works fine but no odometer or trip

I don't know that any one thing would cause these issues.

As for the fuel gauge, you may need to replace the sending unit in the tank.

As for the trip/odometer, you may need to replace the gears.

SPEEDOMETER TROUBLESHOOTING

Can be loose speedo wiring connectors under instrument panel or its issue with speed sensor on transmission.

I suggest you to go through help links mentioned below with appropriate solutions to confirm the problem :------

How to trouble shoot speedometer?

http://schematicsdiagram.blogspot.com/2011/06/speedometer-not-working.html

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1996 fiat bravo speedometer not working?

http://technoanswers.blogspot.com/2012/01/1996-fiat-bravo-speedometer-not-working.html
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Speedometer works but odometer not working?

http://technoanswers.blogspot.in/2012/01/speedometer-works-but-odometer-not.html

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Speedometer runs backward?

http://technoanswers.blogspot.com/2012/01/speedometer-runs-backward.html

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Warning lights on and speedometer died?

http://howtobyme.blogspot.com/2011/08/warning-lights-on-and-speedometer-died.ht

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Speedometer not working on 1993 Ford F350?

http://repairhelpcenter.blogspot.in/2012/02/speedometer-not-working-on-1993-ford.html

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ABS & Brake lights warning indicator steady on dash and speedometer not working for Dodge Ram?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

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Vehicles Cluster panel Not reading Miles?

http://schematicsdiagram.blogspot.com/2011/12/vehicles-cluster-panel-not-reading.html

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Odometer works properly but speedometer works intermittently?

http://technoanswers.blogspot.com/2012/01/odometer-works-properly-but-speedometer.html

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These will help.

Thanks.

If the speedometer and odometer do not work, the problem could be the speed sensor in the transmission.
If the speedometer works but the odometer does not, the problem is in the cluster.

To troubleshoot the issue.Few related help links are provided with solved solution.Click the link below and go through the procedure:---Speedometer/ odometer Display Resets? http://howtobyme.blogspot.in/2012/05/2000-toyota-avalon-speedometer-odometer.html
---------Speedometer works Intermittently? http://howtobyme.blogspot.in/2012/05/2005-lexus-gx470-speedometer-works.html
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How to trouble shoot speedometer?
http://schematicsdiagram.blogspot.com/2011/06/speedometer-not-working.html
-------Speedometer works but odometer not working? http://technoanswers.blogspot.in/2012/01/speedometer-works-but-odometer-not.html
------- Speedometer runs backward? http://technoanswers.blogspot.com/2012/01/speedometer-runs-backward.html
--------Speedometer not working on 1993?

http://repairhelpcenter.blogspot.in/2012/02/speedometer-not-working-on-1993-ford.html

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These will help.

Thanks.

if the speedometer is working then you need a new speedometer if the speedometer does not work check the speed sensor or speedo cable

try a new cable or a new oddometer

speed sensor runs all three gages. Sounds like trans might have lose or missing bolts. Get it checked out.

You need to replace the VSS or vehicle speed sensor. Located on LH, lefthand rear of transmission.

Sheilah

Since your speedometers work, the problem is in the gearing to the trip and mileage odometers. Simple problem, major pain to fix but, remove instrument cluster - you'll have to remove speedo cable to get it out. Use the old Mark I eyeball to check for broken parts. Might even have to drop steering column - disconnect air bag first!

If the odometer is part of the speedo head then the unit will need to be pulled out and sent out to an authorized GM repair station, there are no parts sold for it except the entire speedometer, and that is very expensive.