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No electric to new fuel pump



 
 
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  #1  
Old March 6th 07, 03:57 AM posted to rec.autos.tech
[email protected]
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Posts: 12
Default No electric to new fuel pump

I recently installed a new fuel pump on a 1997 Jeep Grand Cherokee
Laredo and it is not getting any power. I checked the voltage at the
connection and it read 11 something but when I plug the fuel pump
in.........it loses all voltage. Something is grounded it when I plug
it in. I have checked all relays and I am completely
stumped........any thoughts.

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  #3  
Old March 6th 07, 03:02 PM posted to rec.autos.tech
Scott Dorsey
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Posts: 3,914
Default No electric to new fuel pump

> wrote:
>I recently installed a new fuel pump on a 1997 Jeep Grand Cherokee
>Laredo and it is not getting any power. I checked the voltage at the
>connection and it read 11 something but when I plug the fuel pump
>in.........it loses all voltage. Something is grounded it when I plug
>it in. I have checked all relays and I am completely
>stumped........any thoughts.


The meter pulls a lot less current than the pump does... if you put a light
bulb there, you'll find it doesn't light up at all, even though the high
impedance meter measures a little leakage voltage.

Check the pump relay. Then check the wiring.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
 




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