Vauxhall Corsa B (1993 - 2000) - 93 1.5 Diesel tank sender unit question

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Fri 2 May 2008 14:19
93 1.5 Diesel tank sender unit question - Cornish Lass
Hubby has been having problems with his Corsa cutting out and refusing to run properly for the last 6 months. Tried various things to sort it, and since the last time its done over 1000 miles without so much as a hiccup, until it broke down again this week with exactly the same symptoms. Seems like some sort of fuel starvation and this time he was on a busy road and had to have recovery to a local garage. The chap there suggested that the sender unit in the fuel tank could be the problem, but as a new one is silly money, we are going to try one from the local scrappy and fit it ourselves. He thinks it could be taking in air from the top of the tank when the diesel level gets low.

Borrowed a manual for a petrol version to see how to get the sender unit assembly out, and on the petrol tank, the assembly contains the fuel pump. The same plastic housing is in the diesel version, but we are just curious what is inside this as it doesn't contain a pump. Its a plastic cylindrical casing, a bit larger than a coke can - is it just an empty housing with a strainer at the bottom? Any advice appreciated.

Thanks

Edited by Pugugly on 06/05/2008 at 00:01

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Fri 2 May 2008 23:36
93 1.5 Diesel tank sender unit Question - Peter.N.
There are several posibilities. Has the fuel filter been changed lately? If not, try changing it, if it has, make sure that it is sealing properly and not letting air in. Also check all the fuel pipe connections for tightness. When it stops, try undoing the fuel filler cap, the vent maybe blocked.
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Mon 5 May 2008 22:27
93 1.5 Diesel tank sender unit Question - Cornish Lass
Thanks for reply.

We have changed fuel filter during a previous attempt to solve this. Also checked fuel lines for leaks etc - nothing found. As for removing the cap, he's run the car for months with a temporary push-in filler cap with a hole in it and that didn't solve it either!
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