I have a 2001 Chevy S-10 4.3l and have recently put an entire tune-up and new OE fuel pump and I have fuel, spark, and air but no fire. The truck will turn over to beat the band but won't start. Got any ideas?

I have a 2001 Chevy S-10 4.3l and have recently put an entire tune-up and new OE fuel pump and I have fuel, spark, and air but no fire. The truck will turn over to beat the band but won’t start. Got any ideas?

I have a 2001 Chevy S-10 4.3l and have recently put an entire tune-up and new OE fuel pump and I have fuel, spark, and air but no fire. The truck will turn over to beat the band but won't start. Got any ideas?

Look at the output for the crank position. If the signal is weak or off, the sensor or tone ring on the crank is damaged. This could cause the problem you are describing.

 –Andrew Markel
Editor/ASE Certified Automotive Technician
Editor, Brake & Front End magazine

 

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