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Amedee
Amedee, GMC Technician
Category: GM
Satisfied Customers: 26635
Experience:  ASE certified tech with advanced level specialist. Wisconsin certified emissions state inspector
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02 3500 hd 6.0 fuel gague reads empty, no and starts normal

Customer Question

02 3500 hd 6.0 fuel gague reads empty
JA: Has the vehicle turned into a gas hog? And how does it start -- same as usual?
Customer: no and starts normal already replaced the pump and tested cluster in another truck
JA: Are you fixing your 3500 yourself? What have you tried so far?
Customer: yea replaced the pump and tested cluster on another vehicle it was good
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 1 year ago.
Category: GM
Expert:  Amedee replied 1 year ago.

Hello and welcome!

My name isCustomerand I can assist you with your question.

Expert:  Amedee replied 1 year ago.

Can you send me your VIN so I can get some testing procedures for you?

Thank you!

Customer: replied 1 year ago.
1gbjc34u13e330252
Expert:  Amedee replied 1 year ago.

Are there any codes in the computer?

Is there only one fuel tank on this truck?

Customer: replied 1 year ago.
no codes 2 tanks
Expert:  Amedee replied 1 year ago.

Do you have access to a scanner that can read live data?

Customer: replied 1 year ago.
no
Expert:  Amedee replied 1 year ago.

Ok, There is a TSB related to this condition. It is TSB - 05-06-04-008A

Also, here is a test you can run on the wiring before doing the work in the TSB.

Disconnect the Powertrain Control Module green connector.

Test resistance of each fuel level sender through the harness.

The front sender is pin 54, Purple wire.

The rear sender is pin 73, Dark Blue wire.

Sender range is 40 ohms at E and 250 ohms at F.

If not OK at the PCM pins, test directly at the senders.

With each sender disconnected, verify that the PCM is sending 5v down the signal wire.

Expert:  Amedee replied 1 year ago.

I am glad I can help!

It has been a pleasure working with you. Please dont forget to honor your good faith deposit by rating my answer as "5 STAR SERVICE" for assisting you today.

Keep in mind, we can still continue this conversation at no further cost to you even after you rate my answer. Just reply back to me using this page and I will get it and get back to you ASAP!

Please let me know if you have any further questions.

Expert:  Amedee replied 1 year ago.

Did you have any further questions?

Expert:  Amedee replied 1 year ago.

Oh, and one more thing. There is another TSB related to this condition. It is TSB #PIT4150 and it instructs the technician to recalibrate the PCM to fix this condition.

Expert:  Amedee replied 1 year ago.

Hello! It'sCustomerfrom just answer.

I am just checking in to see if you need any further assistance?

Let me know!