Ok I’ve done everything I can think of to this car it’s a 2004 3.8 I have replaced every fuse and relay and module in the car. I’ve got power to the front of the car to the back. The problem is that I turn the key on and the fuel pump will kick on for a split second then shut off it’s got no fuel pressure the pump is hot to the power wire I checked it with a test light then I check the ground and the fuel pump kicks on and will work there’s only power to one pin in the plug what is the problem with it
2004 3.8 fuel problem
- Thread starter Shadow2461
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89ripper
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You didnt actually state your problem. Do you have a no start, crank condition? Just curious why you would replace all these fuses and relays for one problem
I'd be thinking about swapping the fuel pump and pickup. Pretty sure it's not the regulator because the fuel pump prime would be longer. Still, pull the vacuum line from the regulator and see if you smell fuel.
To hotwire the fuel pump to see if it will run continuously:
You can jump it at the (CCRM) Constant control relay module connector 192 in the diagram above by jumping:
[Pin 11 - yellow wire]
--and--
[Pin 5 - dark green and yellow wire]
It would be extremely helpful to have a fuel pressure gauge on-hand before going through the trouble. Just hearing the pump run is not enough to tell you anything.
To hotwire the fuel pump to see if it will run continuously:
You can jump it at the (CCRM) Constant control relay module connector 192 in the diagram above by jumping:
[Pin 11 - yellow wire]
--and--
[Pin 5 - dark green and yellow wire]
It would be extremely helpful to have a fuel pressure gauge on-hand before going through the trouble. Just hearing the pump run is not enough to tell you anything.
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