Bench Testing Fuel Pump - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 03-15-2010, 02:48 PM Thread Starter
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Bench Testing Fuel Pump

Application: 1984 190E 2.3 W201

Shouldn't an electric fuel pump build up enough pressure to squirt gas past the check valve at the exit end of the pump when bench testing? The check valve is clean and works easily. I have fuel supply to the inlet side, the pump spools up but no gas. Am I missing some action that the other components provide since the supply tube that connects the pump, filter, and accumulator is removed?
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post #2 of 2 (permalink) Old 03-17-2010, 10:08 PM
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