Your description doesn't make sense. Am I to understand you were told your car needed a new fuel pump, they installed it, and it still wouldn't start? So then what? You paid the bill and pushed the car home? No one would pay for a repair that didn't solve the problem. How could they justify handing you a bill for diagnosis if it didn't solve the problem?
The only exception would be if you specifically TOLD him to put a pump in based on what someone else told you. In that case, he deserves to get paid for doing what he was asked to do.
Why would someone tell you it needs a fuel pump when you just had one put in? Did they actually diagnose it or just give you an opinion based on the symptoms?
I strongly suspect you misunderstood what the mechanic told you about "components". If the pump didn't solve the problem, he's done with looking at components that make up the fuel pump, as you suggested. He's probably referring to other components in the SYSTEM. The fuel pump is just one part of the entire fuel system. There's an Automatic Shutdown relay, possibly an additional fuel pump relay, they're turned on by the engine computer when it gets pulses from the crankshaft position sensor and the camshaft position sensor. There's fuses, wires, connectors, pressure regulator, filters, etc.
Did anyone check for spark? There's a lot of common problems that will cause loss of spark AND fuel, but if you only check for fuel problems, you're diagnosing the wrong system.
The fuel pump relay can be easily bypassed to see if the pump runs. Start by checking for spark. If that's missing, you don't have a fuel problem.
Thursday, April 23rd, 2009 AT 3:53 PM