Question about 1985 Cadillac Eldorado
Hi how are you. remove the fuel line at the carbberator and crank engine and look for fuel comming out of line. if no replace fuel pump .if yes then your filter or carb needs to be replaced or repaired.
Posted on Feb 13, 2009
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Posted on Jan 02, 2017
possibly no power to fuel pump check fuses first and relays then wiring be sure pump works.test pump it ispump or power to pump related...
Posted on Mar 25, 2011
Testimonial: "Thank for your help and I will try this today. I will be back to let you know how it work."
SOURCE: I can pour gas into
That should be a TBI (Throttle Body Injection) and not a carburetor. I think 85 was the last year for Carbs in S trucks (2.8L).
You should be able to hear the pump run for about 2 seconds when you first turn the key on (wait a few seconds when turning the key off and on to hear pump run). If you don't hear the pump run then there could be a bad relay or its circuit.
The relay should be on the firewall. Have a helper listen for a relay to click. A person can even feel a relay click when the key is turned on if its working.The computer sends a ground signal to the relay to activate it.
But the oil pressure switch also is part of the circuit. When the truck has oil pressure the switch will send power to the fuel pump.
So even if you had it running with gas being poured in the TB, that could have been long enough to build oil pressure (as long as the switch is good)
Then check your connections at the sender. There is also a ground wire on the frame. I think it is near the filler hose just about behind the bracket the bed sits on. Make sure there is a good ground.
You can look up free diagrams at autozone.com. All you have to do is register and that is free as well. That should help you follow the circuit for the pump.
Posted on Sep 01, 2011
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