Easy lifehacks

Where does the fuel gauge come from on a Duramax?

Where does the fuel gauge come from on a Duramax?

I was in the process of installing an aftermarket gauge when I came across a wiring diagram of the fuel system on the internet (alldata). There are two wires coming from the ecm that work the fuel gauge so I took apart the fuse box to check if I seen anything obvious. It seemed as though all the wires were where they were supposed to be.

How does a transfer pump work on a Duramax?

There is a transfer pump on cab and chassis models, with two tanks– the system is suppose to be computer operated, and move the fuel from the rear tank, to the side tank, as the side tank gets low on fuel.

What is the Dorman number on the fuel gauge?

Today I replaced the electrical connector for the fuel sending unit at the rear tank and it solved the problem. The Dorman part number is 645-668. I hope this information can be helpful to those dealing with this annoying gauge issue.

Where is the fuel pump relay on a diesel?

They might use the “Fuel Pump” relay that is used for the gas engines– it is in the underhood fuse box. (regular diesels do not use this, as there is no pump)

I was in the process of installing an aftermarket gauge when I came across a wiring diagram of the fuel system on the internet (alldata). There are two wires coming from the ecm that work the fuel gauge so I took apart the fuse box to check if I seen anything obvious. It seemed as though all the wires were where they were supposed to be.

There is a transfer pump on cab and chassis models, with two tanks– the system is suppose to be computer operated, and move the fuel from the rear tank, to the side tank, as the side tank gets low on fuel.

Today I replaced the electrical connector for the fuel sending unit at the rear tank and it solved the problem. The Dorman part number is 645-668. I hope this information can be helpful to those dealing with this annoying gauge issue.

They might use the “Fuel Pump” relay that is used for the gas engines– it is in the underhood fuse box. (regular diesels do not use this, as there is no pump)

How is the speedometer connected to the dash?

All other dash gauges are connected to sensors or sending units via wires, while your speedometer may utilize either a speed sensor or a physical cable. In vehicles that use cables, the speedometer is physically coupled to the transmission via a cable. The cable is usually square on both ends or square on one end and slotted on the other.

Why is my GMC Duramax instrument cluster not working?

There are 2 pins with 12v to the cluster, but no “spin” of stepper motors, when the key is in the on position no battery light, no seatbelt light, the bright light indicator doesnt come on. No obvious damage, no bent pins, no resistor or led wires touching.

What is the sending unit on a fuel pump?

The fuel gauge sender, also commonly referred to as the fuel sending unit, is the component responsible for sending the signal that operates the fuel level gauge in the instrument cluster. The fuel sending unit is made up of an arm, float, and a resistor that changes according the position of the float.

What is fuel pressure sensor 01-04 LB7 Duramax?

Fuel Pressure Sensor for 01-04 LB7 6.6L Duramax Genuine Bosch Part 0281002398 OE# 97329566 Fuel Pressure Sensor effectively measures fuel pressure in the fuel rail, alerting both the EVAP system and the fuel system to leaks. Replacement restores engine performance. Part Number: E05-10121..

What are the parts for a Duramax diesel engine?

Merchant Automotive part number: NSBU2.. Glow Plug Controller LB7With both relaysMeets Federal Emissions Please allow 1-2 days to ship out. Merchant part number: 97371491.. LLY/LBZ/LMM Fuel Sending Unit Float Sensor Kit – 2004-2008 engines.Kit number: SK1221.. This is a General Motors OE part. Water in Fuel sensor (WIF) GM part number: 12651583..

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Ruth Doyle