4.3 vortec cuts out and turns off - Chevrolet Forum - Chevy Enthusiasts Forums

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S-10 & Blazer 1982-2005
The S-10 and Blazer was arguably the most versatile and accessorizable mid-size truck and SUV on the market.
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Old 06-10-2008, 03:17 PM
Join Date: Jun 2008
Posts: 1
Default 4.3 vortec cuts out and turns off

96 s-10 with a 4.3 vortec 2 wheel drive. With truck running down road all of a sudden engine cuts out and shuts off, no power. Turn off ignition and turn it back on, engine starts and runs for a mile or so, shuts off again. Repeat, turn off and turn on. This can happen all day long. Not sure if ignition is shutting off or fuel.
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Old 06-11-2008, 03:30 PM
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Default RE: 4.3 vortec cuts out and turns off

Try changing out your fuel pump relay with the horn relay and confirm its functionality. Its possble that a bad relay can be causing your problem. Otherwise test the ffunctionality of the ignition spark.
Brent Evans

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