93 Glow Plug Controller or glow plug diagram??

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93 Glow Plug Controller or glow plug diagram??

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93 Glow Plug Controller or glow plug diagram?? - 3/7/2007 9:31:50 PM

nate_b

Posts: 1
Joined: 1/10/2007
Status: offline

Hi everyone, I'm a newbie here and have had my 93 H1 for about 5 month now and I love it!!!! My problem is with the glow plug system. When I turn the key on the "WAIT" light comes on for no more than 5 seconds no matter what the temp is outside. I have tested all my glow plugs with a test light and all are good, I have also tested my plug harness and it is also good as well!! My question is does anyone know what glow plug controller my H1 needs it has a 4 wire GM part #12496472 But the harness has been spliced on!! Lynch hummer's tech said the 93's needed a 3 wire controller??? WHO KNOWS?? I also contacted AM General and after about an hour on hold they said they were unsure, but didn't think a 3 wire controller has ever been used on an H1!!
Thanks,
Nate B