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  1. J

    Coolant temp gauge malfunction

    Truck info: 92 k1500, 350 tbi, 5.7. so my trucks coolant temp gauge is reading barely 100 degrees warm. I’ve replaced the sender, have 14 volts at the single terminal on the plug, and I’ve grounded that plug and the needle goes directly to hot. I’ve had a meter hooked up to it while it’s...
  2. J

    350 5.7 TBI Fuel Pressure Issues

    New sender and pump and it goes straight to the ketchup with no hesitation.
  3. J

    350 5.7 TBI Fuel Pressure Issues

    Most i can get out of it before it bottoms out against the fuel line orifices is around 12.5 PSI. After I installed the adjustable regulator the thing ran like dog ****, I got out after driving it around and looked and I had gas coming from the top of the left injector pod. I pinched the oring...
  4. J

    350 5.7 TBI Fuel Pressure Issues

    No, I unplugged the connector at the fuel tank and jumpered the relay to get power to the male end of the connector. While I was down there I noticed during my rebuild I never hooked up the the EGR canister line back to the tank. Is the tank pressurized from the EGR returned? I only got more...
  5. J

    350 5.7 TBI Fuel Pressure Issues

    So I wasn’t willing to pay autozones mark up for a new fuel pump so it’s on order. I did have a cfm adjustable fuel pressure regulator that I installed to see if it Made a difference. It made the problem more noticeable. I adjusted the pressure from 10.5 up to 12 and drove it around. Drove...
  6. J

    350 5.7 TBI Fuel Pressure Issues

    I'm leaning towards the pump taking a dump, I'll pull the sender out and take a look at it and see if there are any cracks/tears that might allow it to bypass while im doing it.
  7. J

    350 5.7 TBI Fuel Pressure Issues

    New sender unit went into the tank without any complications but I guess I can lift the bed up and take a look at it. When I get it out, anyone know what the pumps motor should ring out to?
  8. J

    350 5.7 TBI Fuel Pressure Issues

    1) Verify voltage at the fuel pump connection. 12.68 volts when I jumpered the fuel pump relay. 2) Verify that the fuel pressure gauge is accurate. T'd a mechanical gauge in with the digital. they are both reading 9 PSI with the fuel pump relay jumpered. 3) Dead head the pump and see what...
  9. J

    350 5.7 TBI Fuel Pressure Issues

    I have a 1992 k1500 5.7 TBI that's just gone through a frame up restoration, drive train is all brand new, fuel filter, fuel pump, TBI Rebuilt Kit, etc. etc. and all the parts used were AC Delco. While rebuilding it I installed a fuel pressure sensor post fuel filter and at idle its 10.5~ PSI...
  10. J

    Unused connector/cut wires??

    egr cables plugged in where it should be. This connector comes out of that portion of the harness.
  11. J

    Unused connector/cut wires??

    Yeah I found a 95 Tahoe at the junkyard with 1 of those and brought it home to put it on. Then I looked at my evap system sticker and it doesn’t have it so I just tossed the thing. I have 1 set of grounds hooked up by the thermostat housing, I’ll put the other two loose ones on as well. Is it...
  12. J

    Unused connector/cut wires??

    I have a 92 k1500, 350 5.7 tbi and I’ve just rebuilt it from the frame up. While I was tearing it down I noticed that I had 2 wires (black/white & tan) and a connector (pink/black & tan) that didn’t plug into anything. They were laying right by where the coolant temp sensor/thermostat for the...

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