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Recent content by SD455

  1. S

    Engine occasionally surges at WOT.

    I figure it's either ignition or fuel delivery. It does not happen consistently, but occasionally, only when running wide open, it will begin to stall then surge (return to expected acceleration). Any ideas what I should do to check the problem?
  2. S

    SD 455 Engine Issues

    And we were all wrong. The local shop swore from the start that it was an engine issue. I had bent a pushrod. It didn't make the knocking noise until I put it in gear because the engine wasn't under load. They had to order a pushrod that was slightly shorter than the stock SD rods...
  3. S

    SD 455 Engine Issues

    Do you think it is inside the TH400? Nothing else makes sense. I need to drive it 18 miles to the shop tomorrow. Not sure what to do.
  4. S

    SD 455 Engine Issues

    Do you agree that the engine seems fine? All of the knocking starts when I shift into gear.
  5. S

    SD 455 Engine Issues

    Here you go. Engine sounds fine running up to 4000 RPM, you can hear the knock when I shift into reverse, back up, then drive, and move forward.
  6. S

    SD 455 Engine Issues

    The engine is running fine now. No misses surges and no smoke in the exhaust. However, when I start it if I shift the (automatic) tranny into anything except park or neutral, the car starts knocking like somebody is under it hitting it with a sledgehammer. Very rhythmic......happens about...
  7. S

    SD 455 Engine Issues

    I have only had it ('74 Trans Am for two weeks). It was driving well at first, no issues. I would practice a few launches every day, just going to 60 with a shift from 1st to 2nd. I would open it up on the road occasionally, but only to about 110. I have a philosophy of driving old muscle...
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