Search results

  1. T

    Knocking noise when clutch pedal is disengaged under load

    The oil looked clean when I changed it a couple weeks ago.
  2. T

    Knocking noise when clutch pedal is disengaged under load

    Thanks for the feedback. I have never heard of an intermittent knock like Airmanwoody mentioned either, but was not sure if it might be some sort of really faint knock that intensifies with the clutch position. All the explanations provided make sense. The engine runs well, but at 260k miles, I...
  3. T

    Knocking noise when clutch pedal is disengaged under load

    I have an 88 C1500 5.7 TBI with a manual transmission. The odometer reads 260k miles. I bought it a few months ago and have not driven it much. The previos owner said the engine and transmission were rebuilt by his father in law, so he had no paperwork, which makes me doubt that is true. I don't...
  4. T

    1997 C1500 hydrolocked after MPFI

    Thanks for the input. I have not changed the oil yet because I will be replacing the oil pan gasket (leaking towards the front of the engine). Maybe having the pan off will help it get some of the fumes out of the crankcase. I need to make room in the garage to pull the truck in so I don't make...
  5. T

    1997 C1500 hydrolocked after MPFI

    Took it out for a 20 min drive today. It felt normal. One improvement I noticed was that when coming to a full stop it no longer stumbled like it did before right before it completely stopped. There was a slight hesitation at idle before which is now gone. After I got back, the fuel trims had...
  6. T

    1997 C1500 hydrolocked after MPFI

    I finished putting it back together today. I cranked it before I installed the plugs, with the ICM and coil disconnected to flush out excess fuel. Not much came out though. The oil still feels "oily" but I will be changing it along with the filter. I let it get up to temp and stayed with it the...
  7. T

    1997 C1500 hydrolocked after MPFI

    I pulled the upper intake again, reconnected the fuel lines to the spider assembly, turned the key to prime the system and it ended up being a bad pressure regulator on the new assembly. As soon as it primed it poured fuel out the regulator and directly to the runner below it which I assume goes...
  8. T

    1997 C1500 hydrolocked after MPFI

    Thanks for the suggestions. It sounds like there is not much testing left to be done without removing the upper intake. @stutaeng - I did not know there was a risk of bending a rod. Now I am worried since I was not there when the engine shut off. I don’t know if it made a weird sound or...
  9. T

    1997 C1500 hydrolocked after MPFI

    I bought a 97 C1500 with a 305 with 160k miles a couple months ago. It had a code for running rich and multiple misfires. I replaced O2 sensors, plugs, wires, dist rotor and cap and still got the code. The truck would stumble a bit when idling and have a hard time starting when hot, but was...
Top