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Re: 1999 bonneville fuel pump
There is a Fuse Relay Station under the Hood on the Drivers Side Up torwards the Firewall. The Relay is in there. Just replace it. it is Very tough to test and is More than likely your Problem and Cheap.
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check fuse #6. Swap the fuel pump relay with another identical relay under the hood. Pull the fuel pump relay. To pins should be grounded all the time. One pin should have power with the key on and one pin should have power with the key in the crank position.
1 fuse 1 relay 1 fuel pump that realy hates when you run it out of gas. open gas door remove cap have someone listen to hear pump "whine" when you turn key on . give fuel tank a good whack
this may work 1 time (seen many no starts that when tow truck brings them in i go out and driveinto shop then wont go again)
you gotta drop tank to test for power grey wire to pump
Heres a few things to check that could cut power to the fuel pump. The fuel pump inertia shutoff sw
in the trunk on the left side, there is a reset button on the switch if you push the button down and
you hear/feel a click then the switch was tripped and you just reset it. The switch's job is to cut off
the fuel in case of an accident. Next, the fuel pump fuse located in the battery fuse block under the
hood on the right fender well, fuse #1 20amp fuse. Next, the fuel pump relay, the relay is located in
relay center on the left fender well. Hope this is helpful.
All relays are located at the center rear of the engine
compartment, below the left side under-hood fuse block (behind the maxi-fuse/relay center cover). There should be a diagram under the cover, that will direct you to the relay you seek.