How To Fix Gas Gauge On 98 Chevy Truck

How To Fix Gas Gauge On 98 Chevy Truck. My 98 chevy 3500hd.454.5spd.2wd truck has a problem with the gauge not working.i replaced the fuel pump with new delphi from gm dealer.replaced the cluster with another that worked in other truck.i figured somewhere between the cluster and pump is a problem.but it also has a hard starting problem.in the morning it starts fine.but after that it. Exactly what it is doin i think it has to do with the fact that it is a gasser instead of a coal burner.

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My 96 gasser has fuel gauge problems too. The first letter on the air core motor will generally be: Then. reconnect the battery and test the fuel gauge.

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If not. the pump has failed. taking out the module with it. If the fuel gauge still malfunctions. you may need to replace the fuel sensor. ignition switch or instrument cluster.

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If the gauge is now giving you an empty reading. the fuel gauge is faulty and should be replaced. Disconnect the wiring attached to the fuel sending unit and then look at the fuel gauge.

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Fuel gauge wasn’t working so replaced 2 sending units and still problem existed. Wiring diagram includes several comprehensive illustrations that display the relationship of various things.

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I’m including a video of the process. Then. reconnect the battery and test the fuel gauge.

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It is very possible that the rear pump failked. drawing too many amps. and blew the module out. If the dash gauge needle fails t move. the dash gauge is defective.

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Do this repeatedly until you have verified that the dashboard is receiving power. but the fuel gauge is still not moving. If that makes your gauge read full then your sender has unfortunately gone bad.

I’ve Seen This Problem And Performed This Repair Successfully Many Times.

(usually it right up against the inside of the frame) once its unplugged get in and and turn to key to the on position so all the electronics light up (dont try to start it cuz it wont. If the dash gauge needle fails t move. the dash gauge is defective. If not. the pump has failed. taking out the module with it.

It Is Very Possible That The Rear Pump Failked. Drawing Too Many Amps. And Blew The Module Out.

Place the key in the ignition of the chevy truck. and turn the ignition switch to the on position. The 1998 chevrolet c/k 1500 has 3 problems reported for fuel gauge doesnt work. Average failure mileage is 141.900 miles.

If The Gas Gauge Works. But Reads Lower Than It Should. Check For Defective Wiring Between The Gas Gauge And The Tank Sending Unit.

If that does not give you an answer then try disconnecting the wire from the terminal at the dash gauge. If that makes your gauge read full then your sender has unfortunately gone bad. Fuel gauges seem to be one of the common problems that people have with the electrical systems on the advance design series of chevrolet trucks.

Ground The Gas Tank Terminal Post Of The Tank Sending Unit Using A Jumper Wire.

It contains instructions and diagrams for various varieties of wiring techniques along with other items like lights. windows. and so forth. Wiring diagram includes several comprehensive illustrations that display the relationship of various things. If the gauge is now giving you an empty reading. the fuel gauge is faulty and should be replaced.

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If the dash gauge now reeds empty. the gas tank unit is defective. My 98 coal burner is just steady and fine. To check the gauge and wire harness from the sending unit up to the gauge. you need to locate the connector back by the fuel tank and disconnect it.