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2004, Mercedes Benz, C240 4MATIC
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Discussion Starter · #1 ·
I recently replaced the Fuel pump on a 2004 C240 because i couldn't get the car running. Got the car to run but once i turn the engine off. the fuel overflows into the engine and have to manually extract it from engine. anyone know what might be causing this issue. look forward to suggestions.

thanks,
Oz
 

W163 and General M Gremlin
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S-Works Epic Evo XX1/AXS Dual Fox Remote
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I recently replaced the Fuel pump on a 2004 C240 because i couldn't get the car running. Got the car to run but once i turn the engine off. the fuel overflows into the engine and have to manually extract it from engine. anyone know what might be causing this issue. look forward to suggestions.

thanks,
Oz

I put one in my (old) car not too long ago. I would almost guess that your return is blocked or not connected...that would be my only guess. But, why would it pass the injectors and not just pressurize and ruin the new pump?
 
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