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Replaced fuel pump relay couple months ago and.

Tiny
BRANDI36
  • MEMBER
  • 2002 FORD EXPLORER
  • 10,000 MILES
Replaced fuel pump relay couple months ago and everything fine. Car abruptly stopped running like ran out of fuel and had to replace fuel pump. Went to start and still wont. What could be the problem
Sunday, January 27th, 2013 AT 3:50 AM

10 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Are you getting spark to the plugs?
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Sunday, January 27th, 2013 AT 3:57 AM
Tiny
JACOBANDNICKOLAS
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Also, is the new fuel pump working
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Sunday, January 27th, 2013 AT 3:57 AM
Tiny
BRANDI36
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  • 6 POSTS
Yes just no fuel
Yes sprayed ether and sparked. Replaced fuel pump and fuel pump relay already. How do u know if new fuel pump is working properly
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Sunday, January 27th, 2013 AT 2:01 PM
Tiny
JACOBANDNICKOLAS
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You need to check the fuel pump pressure at the fuel rail. If the car starts with ether, then you are getting spark. That means you aren't getting fuel. Check to see if the pressure at the rail is within spec and if it is, check to see if the injectors are getting power.
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Sunday, January 27th, 2013 AT 6:29 PM
Tiny
BRANDI36
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There is no pressure at fuel rail.
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Sunday, January 27th, 2013 AT 11:28 PM
Tiny
BRANDI36
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  • 6 POSTS
There is also no action when the key is turned on
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Monday, January 28th, 2013 AT 12:38 AM
Tiny
JACOBANDNICKOLAS
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You now need to check to see if there is power to the fuel pump. Before doing that, switch the fuel pump relay with another relay with the same part number. Let me know what you find.
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Monday, January 28th, 2013 AT 3:40 AM
Tiny
BRANDI36
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  • 6 POSTS
The relay was changed before the fuel pump. If the old pump was bad, could that have caused the relay to go out
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Monday, January 28th, 2013 AT 3:42 AM
Tiny
BRANDI36
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  • 6 POSTS
All of the afore mentioned has been done after replacing the fuel pump. What about filter? And how do I check for power to the fuel pump
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Monday, January 28th, 2013 AT 3:47 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Chances are the relay is fine. You need to remove the fuel tank and check for power at the wiring harness for the fuel pump. Before doing that, just try another relay. It is much easier to do and that COULD be the problem, but chances are it is fine.
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Monday, January 28th, 2013 AT 3:49 AM

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