fuel pump relay location?
Moderator: martauto
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bene30jane
- E30 Zone Regular

- Posts: 286
- Joined: Sat Jul 19, 2008 11:00 pm
- Location: margate, kent
after my car breaking down on sunday (1/3/2009) i found blown fuse for fuel pump, replaced that and still didnt start, fitted a new fuel pump this evening, all was fine
, just went to go out in the car and now wont start
, tries to but dies straight away.... can anyone help with the fuel pump relay location?....


if a 4 pot it's under a long cover across the bulk head.
there is room for three relays but i've only seen two here.
its the one nearest the fuse box.
there is room for three relays but i've only seen two here.
its the one nearest the fuse box.

m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds
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bene30jane
- E30 Zone Regular

- Posts: 286
- Joined: Sat Jul 19, 2008 11:00 pm
- Location: margate, kent
nice one cheers mate..... 


- Brianmoooore
- E30 Zone Team Member

- Posts: 49359
- Joined: Mon Jan 10, 2005 11:00 pm
If the pump fuse blew, then the problem is almost certainly the fuel pump itself beginning to stick.
A good thump with the handle of a hammer or a long 1/2" socket extension bar will usually get it going temporarily, but it needs replacing.
A good thump with the handle of a hammer or a long 1/2" socket extension bar will usually get it going temporarily, but it needs replacing.
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bene30jane
- E30 Zone Regular

- Posts: 286
- Joined: Sat Jul 19, 2008 11:00 pm
- Location: margate, kent
i've replaced the pump yesterday and now the relay with a non genuine one (is it recommended to use a genuine one?) today and seems fine, i took the old relay apart and it had burnt out.... yes the car does have an immobilizer but dont think thats at fault, i think the pump seized due to me cleaning it out whilst replacing the tank
, just going to give it a run now to see if its all ok.... 


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bene30jane
- E30 Zone Regular

- Posts: 286
- Joined: Sat Jul 19, 2008 11:00 pm
- Location: margate, kent
yeah its all fine, doesn't start like it used to though. takes 2 cranks of the key to get it going....


- Brianmoooore
- E30 Zone Team Member

- Posts: 49359
- Joined: Mon Jan 10, 2005 11:00 pm
Assuming your replacement pump was second hand, it probably has a faulty non return valve, and is allowing the pressure in the fuel rail to drop off while parked.bene30jane wrote:yeah its all fine, doesn't start like it used to though. takes 2 cranks of the key to get it going....


