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  1. 6.2L Diesel Engine
    1982 k20 suburban 6.2 My glow plugs (GP) would run with the engine running, not afterglow. I mean it's been hot for some time after 30mins or more of driving. They would cycle. When GPs would cycle, obviously huge load on alternator and belt would screech when I went near the accelerator...
  2. 6.5L Diesel Engine
    Can someone give me a brief explanation of the A and B terminals on a 3pin glow plug relay? C terminal is the ground, but is A or B terminal the coil? On diagrams I've seen B terminal labeled as "glow plug relay control" does that mean that is for the relay coil? Or is that terminal just...
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