November 15, 200520 yr WEll, I can't figure it out... IT quit running climbing a small hill with a little cough, and now it won't start. Turns over fine. THought it was the fuel pump and after tracking the pos wire as far as I could decided to jump the pump from the fuse pannel, now the pump works and fuel is to the carb but not spraying thru the venturi, so it still won't run. No fuse was blown, the fusable links are good, what else is the fuel pump connected to that could suddenly stop it? The timerbox? I can'tfind an ECM or fuel pump relay anywhere...
November 15, 200520 yr check the fuse panel for any bad fuses. there is an anti diesel solenoid that prevents fuel to the bown when the engine is shut off. if the valve does not poen the car will run off the choke try jumping a wire to the solenoid and see if it gets fuel in the venturi
November 15, 200520 yr If you're getting fuel to the carb but nothing in the throats, it's most likely a stuck needle valve.
November 15, 200520 yr Author check the fuse panel for any bad fuses. there is an anti diesel solenoid that prevents fuel to the bown when the engine is shut off. if the valve does not poen the car will run off the choke try jumping a wire to the solenoid and see if it gets fuel in the venturi is the solenoid part of the fuel pump circuit? is it on the carb body? I guess I'm wondering what the original cause of the breakdown could be... I thought that the fuel pump was shot, and found no power at the pump all the way back to the timer box where the pump wire becomes two or three and runs thru the body to the engine compartment. I can't find where that wire goes yet, and in theory it should lead me to the original source of my woes. Every wiring diagram shows the fuel pump as a stand alone circuit, but somthing else is holding up power to the pump. I've checked the fuse panel and can't get continuity between the pump and panel, that's when I hotwired the pump and found that it works. I found one circuit that had no power and will track that next.
November 15, 200520 yr My info shows that one side of the pump is tied to ground. The power side has a blue/white wire that goes to fuse #19. Power is fed to that fuse via the red/white wire from the ignition switch, which switches to power from the green fusible link. I would check to see if power is getting to fuse 19 first. If it isn't, then check the ignition switch and the connector for a problem.
November 16, 200520 yr Author Well I'll Be tied up with a ground wire and beaten raw... It doesn't!!How does that stop power to the fuel pump? I say some fricken' fairies fricked it up.----- Timing belt? Does the distributor rotor turn when the starter is operated?
November 16, 200520 yr If the ECU doesn't pick up firing pulses from the disty as it rotates, it shuts down the pump for saftey reasons. Good call KStretch55.
November 16, 200520 yr Author well, here is another stupid question... where would I find the ECU? Is it the "timer" (blackbox-six wires) attached to the steering collum? I haven't found an ECM with the blinking light, or anything like a control module or fuel relay that is described in the books... If the ECU doesn't pick up firing pulses from the disty as it rotates, it shuts down the pump for saftey reasons. Good call KStretch55.
November 16, 200520 yr Look for a small box (4"x5"?) under the left side of the dash. It will have a lot of wires going to it. There is a LED on one end of it to read the codes from.
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