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Fuel pump failure
1991 BMW 535i

Fuel pump failure

(1991 BMW 535i)
Pump stop working,it won't turn on
1 answer & 0 comments
Popular Answer
Check 15 amp fuse number 23 in the fuse box, it should have power on cranking if the fuel pump relay is receiving a signal to power up the fuel pump via the fuel pump relay. Power that fuse and the fuel pump should run, its a quick check for the pump.
You need a wiring diagram and a good volt/ohm meter and start tracing circuits if no fuse or fuse link appears blown. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info or there is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try http://bit.ly/mitchell_repair_manuals_online
and get an online repair manual subscription.
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General Diagnosis
$88 - $111 Learn More
Check 15 amp fuse number 23 in the fuse box, it should have power on cranking if the fuel pump relay is receiving a signal to power up the fuel pump via the fuel pump relay. Power that fuse and the fuel pump should run, its a quick check for the pump.
You need a wiring diagram and a good volt/ohm meter and start tracing circuits if no fuse or fuse link appears blown. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info or there is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try http://bit.ly/mitchell_repair_manuals_online
and get an online repair manual subscription.
Sign in to reply

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