Am I sh@gging my fuel gauge sender?
#1
I filled the car (STi8 non-PPP) up this evening on Optimax. As I don't have a Shell garage convenient to any of my normal routes to work or customers, and my car LOVES Optimax, I filled it to the brim - by which I mean I squeezed in every last drop I could.
I didn't check the gauge as I left, but after about 10 miles I noticed the fuel gauge only showed half a tank, then it worked its way south as I drove on for the next 80-odd miles. Then, when it had reached just over a quarter, it started to work its way north again until it reached the likely-accurate position of three-quarters of a tank.
Does anyone out there know the configuration of the sender? Is it in a side-tube which might have got airlocked by overfilling, or did I do something nasty to the sender?
(I did this overfilling exercise on my old 328i once and half-way home the needle plummeted to zero - a very expensive new combined pump-and-fuel-gauge-sender was my punishment - the original being probably damaged by the pressure buffetting from the fuel hose).
I didn't check the gauge as I left, but after about 10 miles I noticed the fuel gauge only showed half a tank, then it worked its way south as I drove on for the next 80-odd miles. Then, when it had reached just over a quarter, it started to work its way north again until it reached the likely-accurate position of three-quarters of a tank.
Does anyone out there know the configuration of the sender? Is it in a side-tube which might have got airlocked by overfilling, or did I do something nasty to the sender?
(I did this overfilling exercise on my old 328i once and half-way home the needle plummeted to zero - a very expensive new combined pump-and-fuel-gauge-sender was my punishment - the original being probably damaged by the pressure buffetting from the fuel hose).
#2
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Fuel gauge problems on these cars aren't uncommon. Search on here for "fuel gauge" to see if you can get any info, but when this happens it seems to be a dealer fix, so probably best to drop into them ASAP.
#3
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Mine did the exact same thing a few weeks ago! Filled right up, then noticed the gauge was stuck on exactly half a tank!.Stayed like that til I'd done about 40 miles, then started to read correct again. Hasn't done it since! Don't worry too much about it!
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