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Old 01-11-2014, 06:35 PM
Dan2060 Dan2060 is offline
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no fuel pressure-help

Hi All,
I have a 2004 xstar and I was trying to start it last week to change the oil. Well, it would turn over, but nothing else. Normally, when the key is turned to the right you hear a buzz (which I believe is the fuel pump) shortly after that the fuel guage registers the amount of fuel and then your good to go. I'm not getting this sequence.

I thought is was the fuel pump and I have an extra, so I plugged in the brand new one (didn't want to take off all the allen screws and replace just yet). I turned the key thinking that if this was the problem at least the new pump should make some noise. Is this correct?
Well, no noise from the new one.

I then looked at the fuses under the dashboard and pressed all the buttons to reset them all ( I didn't see one specifically for the fuel system). No luck.

Where do I go next?
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Old 01-11-2014, 06:43 PM
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bturner2 bturner2 is offline
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Breakers at the back of the engine. One is for at fuel pump.
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Old 01-11-2014, 06:51 PM
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mikeg205 mikeg205 is offline
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Does your engine have a fuel pump relay?

Napa - MPE AR153SB

http://www.napaonline.com/Catalog/Ca...3SB_0430727123
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Old 01-11-2014, 06:55 PM
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Jerseydave Jerseydave is offline
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Not sure if it cuts off the fuel pump but check your kill switch. If not I'd say maybe bad relay. Do you have 12 volts at the connector?
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Old 01-11-2014, 06:57 PM
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mikeg205 mikeg205 is offline
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Quote:
Originally Posted by Jerseydave View Post
Not sure if it cuts off the fuel pump but check your kill switch. If not I'd say maybe bad relay. Do you have 12 volts at the connector?
+1 on this... safety lanyard a likely suspect...
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Old 01-12-2014, 11:09 AM
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bturner2 bturner2 is offline
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I'm with Mike on this one. I was actually referencing the relays on the back of the engine. There should be 3 of them. One controls the fuel pump and has been documented on this forum as a source for this type of problem.

Since you've plugged in another pump and it didn't make any noise we can assume there is no power at the connector. Regardless it would probably be best to check for voltage with a meter anyway and also check condition of the wires and connectors all the way back to the relay.
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Old 01-12-2014, 06:01 PM
cmallada89 cmallada89 is offline
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Why don't you trouble shoot put a positive 12v to the pos. Side of the fuel pump if it turns on fuel pump is good next put power to the relay if it still turns on the pump from there its in the wires before that
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Old 01-13-2014, 12:04 AM
Dan2060 Dan2060 is offline
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Thanks guys, It may not be until next weekend, but I'll check out the ideas and let you guys know.
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Old 01-25-2014, 06:05 PM
Dan2060 Dan2060 is offline
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ok looked all over the engine and don't see breakers or a fuel relay. I've attached a picture of my engine. Can you guys help me out
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Old 01-25-2014, 07:57 PM
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mikeg205 mikeg205 is offline
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what's under this square cover... ?

not sure what is under this cover or how your model engine is wired.
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