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-   -   fuel pump fuse blowing (https://www.the75andztclub.co.uk/forum/showthread.php?t=309107)

Boltonboy 8th November 2020 14:45

fuel pump fuse blowing
 
my fuel pump fuse keeps blowing any ideas please had aa man out fuse kept blowing not sure what it can be maybe fuel pump gone or short any ideas

Mickyboy 8th November 2020 16:02

If this is a continuation from your previous thread that I commented on then I would suggest it’s most likely to be a faulty fuel pump under the bonnet, giving issues, you could test the under bonnet pump independently by sending a direct feed to it and removing the connector at the fuel filter and using a Coke bottle to test for flow, you would be looking for a nice steady flow with no air or foaming.
Mick

Boltonboy 8th November 2020 17:30

thankyou mate for reply it is the original pump so will change it hopefully this sorts out the fault

Boltonboy 9th November 2020 08:09

do you know the location of the fuel pump fuse on the fuse box and amp of fuse I think its 28a and 30amp just wanted to check thankyou in advance

SD1too 9th November 2020 09:57

Hi Matt,

To give you the right answer it would be helpful to know whether you're asking about your diesel or your petrol car and whether it has the original fuse box design or the later one.

Thanks.

Simon

T-Cut 9th November 2020 18:49

Quote:

Originally Posted by Boltonboy (Post 2847086)
do you know the location of the fuel pump fuse on the fuse box and amp of fuse I think its 28a and 30amp just wanted to check thankyou in advance

Images courtesy of Arctic:


https://www.mediafire.com/convkey/d7...twca1soq6g.jpg


https://www.mediafire.com/convkey/ec...ec5xyjfm6g.jpg

Boltonboy 9th November 2020 19:06

thankyou tcut pictures really helpful

MacRob 9th November 2020 20:52

[QUOTE=T-Cut;2847204]Images courtesy of Arctic:


Interesting. Any ideas why the fuse is a bigger resistance one in the later fuse box?

SD1too 10th November 2020 07:18

There are two fuses in the fuel pump relay circuit. The lower rated supplies the coil and the higher rated supplies the contacts.

For the earlier fusebox, the 10 amp fuse illustrated (F34) supplies the relay coil only. F20 (not illustrated) supplies the pump(s) and is the fuse which is likely to blow in the event of a fault. This is located second from the left in the same row as F34 and, as you can see, a 30 amp fuse is fitted.

In the later fusebox it's F10 (10 amps) and F28 (30 amps) respectively.

I hope this helps.

Simon

Boltonboy 10th November 2020 16:38

thankyou for your reply just to clarify where is f10 on the fuse box


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