Recent content by Ninety-two

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    ‘92 5.7 tbi stalls after tach goes crazy

    Update: installed A/C Delco coil and ICM at the same time and she’s running about perfectly. Started up easily and warmed up super smoothly idling steadily without any help at about 700 rpm. Sorry I didn’t isolate the coil but it wasn’t worth it to me. FWIW my money is on the ICM just because...
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    ‘92 5.7 tbi stalls after tach goes crazy

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    ‘92 5.7 tbi stalls after tach goes crazy

    Sorry but I read here that a coil can take out an ICM so I planned to do both and possibly the pick-up coil too; but that seems ok. So I have both out and since I need to order parts, I’ll put it all back together at once.
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    ‘92 5.7 tbi stalls after tach goes crazy

    Actually looks pretty good. A little bit of fero-magnetic crap on the magnet right around the shaft but pretty clean. I’m going for icm and ignition coil. Fingers crossed.
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    ‘92 5.7 tbi stalls after tach goes crazy

    Wow. Thanks. This seems like solid, knowledgeable advice that might even save some money. It also seems like a more daunting project than just swapping a bad set of parts for a good set. Never as simple as I want it to be. Sometimes you can trade money for time and experience, sometimes you just...
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    ‘92 5.7 tbi stalls after tach goes crazy

    Thanks Playing with. I appreciate your time.
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    ‘92 5.7 tbi stalls after tach goes crazy

    Seems like smart money says do it once. I’ll probably do distributor and coils. Coil is fairly inexpensive and I’ll already be there. Delphi new distributor over AC Delco reman, or what?
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    ‘92 5.7 tbi stalls after tach goes crazy

    …and if new distributor @$145 with new ICM @$100 should I just do the distributor?
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    ‘92 5.7 tbi stalls after tach goes crazy

    No codes via paper clip method, other than confirming diagnostic mode. Runs smoothly warming up. Once warm, stalls with no warning. Tach-but not rpm’s- jumps around a bit then crashes with stall. ICM?
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    ‘92 5.7 tbi stalls after tach goes crazy

  11. N

    ‘92 5.7 tbi stalls after tach goes crazy

    Thanks for the reply. As below, I didn’t know it might store codes without a check engine light, so I’ll see if I can get anything that way first. I read in a related thread that the tach jumping around might indicate something in the distributor. I had meant to ask what the tach is actually...
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    ‘92 5.7 tbi stalls after tach goes crazy

    I’m new to posting here but not to reading. I’m also not a great mechanic, at least I’m not great at diagnosing, but I can wrench a bit. Anyway please excuse my ignorance. I’m trying. 5.7 tbi in a ‘92 K1500. My work truck. I recently threw a bunch of parts at it. Surging idle and crap mpg, I...
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