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1987 tbi...NOT gaining FUEL
if i remember these have the fuel pump in the tank, take her hand or a 2x4 item of hardwood or sumthing and hit the bottom the the tank when someone turns it over, most likely the fuel pump itself going out. Or take the key fuel line off at the tbi base and have who crank it and see exactly how long the fuel come out, if in ~ all. Just my .02
First point to examine is the fuel pump relay i m sorry is more than likely the noise your hearing under the hood. You need to inspect the wiring where the relay plugs in. If you verify that your acquiring power headed back to tank you need to inspect the pump. The pumps in Gm vehicles are infamous for going poor on a continuous basis.
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their is a oil perssure switch on the motor the controls the the fuel pump also. If the fuel pump fuse is blown the oil pressure switch will revolve on the fuel pump when it the oil pump puts out over 4psi. Check fuse then inspect oil press switch ~ above motor
I"ve got the exact same year & thing happening right currently .... Ns did not obtain a chance to even look in ~ the crew this weekend.Ratty 46
these trucks likewise prone come blowing ecm fuse inspect for strength on grey wire at fuel pump and an excellent ground if over there is power and ground , poor fuel pump
I readjusted the fuel relay. Checked the fuses. Tho no go. Ns will change fuel pump and see what happens. It has dual tanks yet of course only one works. On my 87" burb it has just one relay top top the pass side firewall, mine 87" crew cab has 2 relays?? whats up?
I changed the fuel relay. Checked the fuses. Tho no go. Ns will readjust fuel pump and see what happens. The has dual tanks however of course just one works. On mine 87" burb it has just one relay top top the happen side firewall, mine 87" crew cab has 2 relays?? whats up?
One relay because that each tank. Friend don"t desire the other fuel pump running when the tank is close up door off carry out you?
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