'94 Park Avenue base 3800 ViN L
#1
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'94 Park Avenue base 3800 ViN L
I am trying to get my car to start. Fuel pressure was 42 KOEO 35 KoER ( when it intermittently ran) and dropped with cranking. Replaced pump, still cranks but no start. trying to find the fuel pump jumper and fuel pump relay. Is the red wire with the green connector behind the battery, in the attached picture, the proper jumper?
#2
Senior Member
Not sure where that jumper is, if it even has one....
You checked fuel pressure before, didn't you check it after the new pump was put in? What brand of fuel pump did you use? Replace the sock on the pump? replace the fuel filter?
Right now I would have someone, crank the vehicle, while you spray carb cleaner into the intake, to see if the car starts......if it doesn't then disconnect the MAF and try the same thing again....
You checked fuel pressure before, didn't you check it after the new pump was put in? What brand of fuel pump did you use? Replace the sock on the pump? replace the fuel filter?
Right now I would have someone, crank the vehicle, while you spray carb cleaner into the intake, to see if the car starts......if it doesn't then disconnect the MAF and try the same thing again....
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Medic (06-01-2016)
#3
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Getting zero pressure after new pump install. I cant seem to find the relay to check it for proper function. found references to it being under hood on the firewall, on right kick panel under dash, behind glove box. Precision brand from oreillys. new sock also. one other thing is the fuel guage now shows wayyyyy past the full mark with only about 9 to 10 gallons in 18 gallon tank, I really, really don't want to drop the tank again but....
Edit: I tilted the tank to drain the gas out, it was just too heavy to lift back up with the gas in it, so im thinking the float may have got hung up or something.
Edit: I tilted the tank to drain the gas out, it was just too heavy to lift back up with the gas in it, so im thinking the float may have got hung up or something.
Last edited by Medic; 06-01-2016 at 11:45 AM.
#4
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On a 1994 Le Sabre the fuel pump relay is on passenger side at the kick panel. Glove box needs to be dropped down to see it.
The relay is on the left, third down from the top.
Don't know about the jumper.
Joel
The relay is on the left, third down from the top.
Don't know about the jumper.
Joel
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Medic (06-01-2016)
#5
Senior Member
I would disconnect the harness at the fuel tank, 4 wires.....the two thicker/larger wires are your fuel pump circuit(think it is grey and black in color), the two thinner ones are for the fuel gage.........attach a test light to the fuel pump circuit in the harness(the half going away from the tank)....turn key to on, light should come on for 2 seconds and go out......crank vehicle and it should be on steady.....if it is, then you either have a bad pump, or there is something wrong with the wiring....
If it doesn't light up, then you will have to check the relay circuit.....
If it doesn't light up, then you will have to check the relay circuit.....
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Medic (06-01-2016)
#8
Retired
That green connector behind that battery is a straight feed to your fuel pump. Put a 10amp fused wire from the 12v+ to that connector. That will make the pump stay on until you disconnect it.
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#9
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Thanks Mike!! That is what I needed to know, did not want to go hooking power up to random wires and really fry something, like the PCM, ECU, etc.
#10
Senior Member
If you apply a fused jumper to that lead, and the fuel pump doesn't run, you are still going to have to test for power and ground at the 4 wire harness connector....power is grey wire, term C, and the ground wire is black, terminal A(there are two black wires in the harness, you want terminal C, it will be larger than the other black wire).....these are the two wires in the harness you attach the test light to.......If it doesn't light, test each wire individually, for power and ground......