My Audi 80 seems to be having trouble starting and running smoothly. I suspect it could be an issue with the fuel pump. What are some steps I can take to troubleshoot and fix this problem?
ReplyFirst, check for any obvious signs of damage or leaks in the fuel pump. If everything appears to be intact, use a fuel pressure gauge to test the pressure of the fuel system. A pressure reading that is lower than the manufacturer's specifications could be an indication of a faulty fuel pump.
Another way to diagnose a faulty fuel pump is by listening for a humming or buzzing sound coming from the fuel tank when the ignition is turned on. If you don't hear anything, it could mean the fuel pump is not receiving power or that it has completely failed.
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