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Tech Tips :: C4 Related Tech Tips :: Possible cause of hard starting and no fuel pressure.

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During a Q & A session at Corvettes at Carlisle 2001 Gordon Killebrew mentioned one cause of fuel pump problems. Under the plate that secures the fuel pump assembly to the top of the gas tank is a small black connector. With time the pins and socket of this connector can become oxidized to such an extent that power to the fuel pump is interrupted. This condition can appear as an intermittent or a complete failure to pressurize the fuel rail. Sometimes a sharp rap or two on the top of the filler neck to the gas tank is enough to jar the connections to temporarily restore power to the fuel pump. The fix to this problem is to remove the fuel pump assembly and separate this connector from it's mating pins, clean the pins till bright again and use contact cleaner to clean the mating sockets. I personally saw Mr. Killebrew successfully administer both solutions to the failed fuel pump connection on one of our cars at the 35th Anniversary tent at the Carlisle gathering.