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1988 - 1998 (GMT400) Section for all discussion related to the 1987-1998 Chevrolet and GMC trucks.

1992 Chevy k1500

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Old July 22nd, 2016, 3:31 PM
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Default 1992 Chevy k1500

I'm hoping someone can help me. I was driving my truck, all was going good. Then it jerked and tried to stall. I engaged the clutch , gave it some gas and it cleared up....for about 20 seconds. It then stalled and won't start. I now has new plugs, wires, cap, rotor and coil. I even replaced the computer. No go. Won't start. Cranks but won't fire. Any ideas on what I'm missing? Thanks in advance
Old July 22nd, 2016, 6:40 PM
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Have you verified that you don't have spark? Do you have fuel pressure?
Old July 22nd, 2016, 9:15 PM
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Thank you for getting back with me. Yes to both. It was suggested that it might be the spark modulator. Getting one first thing in the morning. I was told that they go bad often.
Old July 25th, 2016, 9:45 AM
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It was the spark modulator. She's running good again. Thanks everyone for your help!




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