Will not start

132,000 MILES • 4.3L • 6 CYL • 4WD • AUTOMATIC
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BOB B
  • MEMBER
  • 11 POSTS
Put a new fuel tank fuel pump and inline fuel filter not to long ago.and now my vehicle listed above (Blazer) will not start.
May 9, 2020 at 5:50 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi,

Have you checked to see if it is getting fuel and spark to the engine? Chances are one is missing. Take a look through this link first.

https://www.2carpros.com/articles/car-cranks-but-wont-start

What I want you to try is this. See if it starts for a couple seconds and then stalls using starting fluid. If it does, then we know it is a fuel related issue. If it doesn't even try to start, the suspect ignition.

Here are two links showing how to check for ignition spark and fuel pressure. If it fails to start with starting fluid, check for spark next.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Let me know what you find.

Joe
May 9, 2020 at 2:22 PM
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