Can you help me with a fuel pump diagnoses step by step , the trouble shooting procedures
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1991 Ford Explorer Question: fuel pump
Answer #1sinautoscan.com October 07, 2009, 21:11Master
Check the fuel Pump Relay, if you have a Fuel Pressure Gauge you can use that, if you don't get some starter fluid and crank it up, disconnect the fuel line turn the switch on see if it pumps out Fuel. for diagrams or locations post a request on my website sinautoscan.com/forum al be happy to help if you need more help
Bret Bodas October 08, 2009, 09:31Master
Check power and ground to the pump while cranking the engine. If you don't have both, then diagnose the fuel pump electrical circuit. If the signals are OK, then you will need to check the fuel pressure output from the pump.
Let me know the results and if you need any other info.
Answer #3donnie069 October 21, 2010, 07:42Rookie
need to find out no power at the fuel relay switch
Answer #4Visitor, November 28, 2010, 21:18
turns over will not start