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Showing content with the highest reputation on 07/19/2024 in all areas

  1. Z34 Lover

    1991 Chevy Lumina 3.4 DOHC No Spark keeps blowing fuse on crank

    Good news i got the car to fire right up again. It was a mix between the crankshaft sensor and the ICM and coils. As for that fuse it no longer blows after i played with the wire for a while and traced it as far as i could and the wire was in great shape so not sure about what happened there. Now i got a new issue, soon as i started the car i noticed i got coolant dripping from back by the firewall. i had lost coolant before the car died. So i filled the radiator and went for a 7 mile drive. Got back and i put about a 1/3 of a jug back into the radiator. Car doesnt blow smoke or anything. What could be a possible cause for it? Its by the passenger tire in the front around the back corner of the block by the firewall based on how its dripping onto the ground. Any help would be great on this!
    1 point
  2. carkhz316

    1991 Chevy Lumina 3.4 DOHC No Spark keeps blowing fuse on crank

    When the Crank sensor went out on my 'ol Euro (3.1; and my brother was driving it when it happened) the car just up and shut off. There was no spark/ injector pulse. If your car had just that issue, I'd say start there. If you had no spark AND no fuel injector pulse, I'd put money on a crank sensor issue. BUT, since you indicate a ignition fuse popping, I'd look there first. Keep us updated.
    1 point
  3. White93z34

    1991 Chevy Lumina 3.4 DOHC No Spark keeps blowing fuse on crank

    Maybe the crank sensor or ICM has internally shorted. That's a weird one on me.
    1 point
  4. szczur

    1993 3.1 Lumina idles, misfires, mystery stalls

    Hey guys, new to the forum. I'm having a car problem that's stumping everybody I've asked. They say it could be all these different sensors or the fuel regulator and/or pump. My 1993 Lumina up and stalled out with no warning one day, and since then it has not run right. It will start up and idle roughly forever, but when you hit the gas it will lurch/rev up and down, misfire variably, and then stall. The length of time it will run before stalling varies but no more than 5 minutes. Check Engine light is not on, was checked to be working, no codes. Recently ran idle relearn, replaced MAP and IAT Sensors. Am going to check fuel pressure. Any ideas?
    1 point
  5. Myotis1134

    1993 3.1 Lumina idles, misfires, mystery stalls

    I am having nearly the same problem, and I have replaced all my ignition-related sensors, spark-plugs and spark-plug wires, and most recently coils. The rough idle might be from a bad coil, but it more probably will turn out to be a bad ignition control module. Those seem to go out often on my car (91 lumina euro 3.1). Check out my post (Something Not Right Here) and see if the symptoms match up. I would get mystery stalls, which grew increasingly worse. The car will not start now, even with all the crap I''ve replaced, and I picked up the new ICM a bit ago. Going to replace it tonight and see if it fixes the problem. Have you checked to see if you are getting spark yet? I really wish I had done that right off the bat, then I wouldn't have replaced so much crap that probably didn't need it.
    1 point
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