Question about 1994 BMW 3 Series

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FUEL PUMPS FAIL TO START - 1994 BMW 3 Series

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This sounds like a relay issue. If you would like an official BMW shop manual, please let me know. If you look under the hood, driver's side, there should be a fuse box. Look at the 2 relays that are together(the other 2 rows will all be in line) the one towards the centre is the fuel pump relay. Have some one turn the key and see if you can hear it click. If it does not, it needs to be tested for power. Let me know on the manual.

Posted on Sep 03, 2010

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In a quiet location, turn the key to the "on" position, but don't go all the way to "start". Listen carefully for a low-pitched buzz or hum for about three to five seconds from the gas tank area. If you don't hear that, then the pump is not running. When you first turn the key, the pump does a 3-5 second "priming" to bring fuel pressure up so the car can start on the first attempt.

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JPTCAT

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