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Rmldaytona
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2003 chevy silverado ss fuel gauge not working

Resolved Question:

2003 chevy silverado ss fuel gauge not working
Submitted: 4 years ago.
Category: Chevy
Expert:  Rmldaytona replied 4 years ago.

Hello.

 

The instrument clusters have had a high failure rate on these vehicles. The dealers have extended the warranty coverage up to 7 years or 70K miles, whichever comes first from the initial delivery date.

 

The diagnostics for this are quite easy as long as you have the right equipment.

 

First, with a compatible scantool, access the instrument cluster module. There is a function for gauge sweep test. This moves the gauges all the way up and all the way down. If a gauge does not respond, it is faulty. The instrument cluster is only serviceable as an assembly and must be programmed using a factory scantool after installation. Usually an $800 repair total.

 

If the sweep test shows the fuel gauge moves all the way up and all the way down, you likely have a faulty sensor in the tank. Ohming the sensor at the connector is the next step. The sender should read a steady resistance value between 40 and 250 ohms, depending on the fuel level in the tank. These have also have had a high failure rate. They are available separate from the fuel pump assembly. Usually a $400 total.

 

 

 

 

Rmldaytona, Certified Technician
Category: Chevy
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Experience: ASE Certified. 13 years Automotive Experience.
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