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Problems with the fuel gauge in my 2005 Holden Rodeo

Asked by Peter

The fuel gauge in my 2005 Holden Rodeo was doing weird stuff then the car just stopped. I put a new fuel pump in the tank but it still won’t start. I think it’s an electrical problem. And yes, I checked the fuse.

Answered by CarsGuide

3 Jun 2024 David Morley

This is very possibly a fault with the power supply to the fuel pump rather than the pump itself. The clue is that the fuel gauge started playing games just before the engine shut down. The fuel gauge is controlled by the sender which is usually in the tank with the pump. They’re often supplied power by the same wiring. So any problem with the power to the fuel pump would also possibly show up as a fuel gauge that’s making strange movements.

Start by checking the power supply to the pump, but don’t rule out a poor earth somewhere in there as well. Even though the fuse is okay, if the power wire or earth wire is loose/corroded/faulty/dirty/short-circuiting, then you may have found the problem.

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