Dodgy Petrol Gauge - Alfa Romeo Forum
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(Post Link) post #1 of 4 Old 09-01-03 Thread Starter
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Dodgy Petrol Gauge

I have recently got a V reg GTV 2.0 TS. It is great and I can understand why people rave about Alfa Romeo (when they work!!). However I have one small problem which hopefully someone can help me with.

The fuel gauge on the car sometimes: -

1. Doesn't work (i.e. remains empty).
2. Says that I have way more fuel than I have actually got.

In both instances the gauge returns to normal after about 5 miles.

Is this normal? Is this a sign of anything major?

ukrickywilliams is offline  
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Big Dave
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Welcome Ricky
This could be caused by a number of things:

1) Faulty sender unit (located in the petrol tank)
2) Faulty Wiring
3) Faulty Petrol Gauge (unlikely)

If I were you I would first concentrate on the the wiring.
If the live side of the circuit (+12v) is shorting to earth (0v) this will cause the gauge to read 'FULL'.
If the live side, or earth connection is loose and the circuit is broken, the gauge will read 'EMPTY'.
Have a look at the connections at the sender, and gauge just to make sure they are secure.
If they are secure and the fault is still present, there could be a short somewhere else in the circuit caused by broken insulation on a cable. This will be harder to trace, as it could be anywhere in the car.
If the fault still cannot be found either the sender or the gauge may be faulty. These parts may be expensive. But as I say look at the wiring first, this is more likely where the fault lies.
Hope this helps. wink
Keep us posted
(Post Link) post #3 of 4 Old 09-01-03 Thread Starter
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Thanks Big Dave.

Just one question. How do I get to the sender?
ukrickywilliams is offline  
Big Dave
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Hmmm Good question, Ricky.
I,m not sure where the petrol tank is located in the car, must be in the back somewhere. If you find the tank, it should be easy to find the sender, as the connections to it will be on the outside of the tank.
Does anyone know how to get to the tank?

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dodgy , gauge , petrol

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