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Re: fuel pump
[Re: zephyr]
#617827
06/24/05 12:17 AM
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Joined: Nov 2001
Posts: 286
Mudrunner
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You should have between 33-40 psi at the fuel rail when the Fp test connector is shorted.
The pump should be capable of putting out at least 50 psi max. pressure against a gauge.
A couple of quick checks that require no equipment are:
Remove the rubber return line off of the hard line on the firewall and turn the key to start without pushing in the clutch. With the auto I am not sure what the result would be if the transmission was in drive? You might have to disable the starter to do this test with the auto. You should have fuel flowing through the return line with the key in the start position. If the pump doesnÆt run with the key in the start position but works with the jumper I would be looking at the wiring between the ignition switch and the circuit opening relay as well as the circuit opening relay as well.
Check the fuel pulsation dampener after cranking the engine, the bolt head under the plastic cover should be flush with the top of the dampener case if there is pressure present.
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