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How do you test the fuel pump and fuel pump relay on a 1995 S-10 with a 4.3?
Wiki User
∙ 11y ago
First off check the fuel pump fuse to make sure it is not blown. The best thing to do is just replaced the relay to make sure that is not the problem. If you can hear the pump run with the ignition to the on position, engine not running then it may be good. But it is possible the pump is running and not pumping fuel. A fuel pressure test at the fuel rail will verify the condition of the pump.
Wiki User
∙ 11y ago
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