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  1. 6.5L Diesel Engine
    All of a sudden after running fine for a month after replacing GP relay and replacing a fusible link at junction box, my GP light is only coming on for a few seconds even when cold. It will come on for a maximum of 4-6 seconds before going off(I can hear the relay going on and off), and then...
  2. 6.5L Diesel Engine
    Hello all, I need to replace my glow plug harness. Does anyone have experience with all of the options? Quadstar: $130 Leroy: $159.99 JDMSPEED: $109.97 Pretty significant price delta among the 3. Pros and cons of each? Vendor discount via DP? I know QS advertises a longer harness for better...
  3. 6.5L Diesel Engine
    Hey again y'all, The truck has been sitting for two weeks while I changed the water pump, fan clutch and belt tensioner. After finally finishing and hooking up the batteries again, I eagerly jumped in and flipped the key in the ignition - but something was off. The WTS light never came on. I...
  4. 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...
  5. 6.5L Diesel Engine
    i have a 1997 k2500 6.5 mfg date 12/96. i have a glow plug lite bulb in instrument panel that never lights , i can hear relay cycle have power to glow plugs , i pulled instrument panel and was checking the harness and there is no dark blue wire to number 2 pin for signal, i have unwrapped...
  6. 6.2L Diesel Engine
    This past winter, I upgraded to the ‘85-newer glow controller on my ‘83, complete with a resistor for increased glow times and new 60G plugs. All has been working great up until a couple of weeks ago. It was a hot day, probably around 95°-100° and I had been driving down the freeway for about 30...
  7. 6.2L Diesel Engine
    How's it goin fellas! How do I remove the top cap with wires that's connected to the glow plug controller ('82 C10 diesel). I have a tendency of breaking things so I don't want to just yank it out lol! I joined the forum just to ask this so I'm hoping someone can answer my question. Thanks In...
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