Question about 2002 Chevrolet Blazer

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I'm having problems with a 2002 Chevy Blazer 4.3L not turning over after changing the plugs

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Check the firing order. If you took all the plug wires off at the same time, then there is the problem. Back firing out of the intake is a sure sign the firing order is wrong.

Posted on Jan 22, 2013

  • Arturo Jan 22, 2013

    Everything is connected properly. It's backfiring through the intake



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Posted on Jan 02, 2017

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SOURCE: 2002 chevy blazer fuel pump (4 door)

yes you have to drop the tank. you will also need a fuel line tool to unhook the fuel lines. before you drop the tank see if tou can reach and wiggle the electrical connection on the top of the tank. these pumps have a pigtail issue. please rate

Posted on Dec 08, 2008

  • 94 Answers

SOURCE: cylinder 2 misfire on a 1998 chevy blazer

check your plug wires for tears and dont overlap them

Posted on Feb 27, 2009

  • 335 Answers

SOURCE: I Have a 2002 blazer that starts but motor dies, surges when accelerating

If this engine is a VORTEC then you may have a problem with the internal fuel system. Under the top plenum there is a fuel reg and poppet valves that inject fuel into the cylinders. Sometimes the tubes that run fuel from the reg to the valves can leak and cause your problem. This cannot be found with pressure check because this occurrs after the reg. PS fuel mileage will go down. Let me know if this helps.Moe

Posted on May 26, 2009

  • 13 Answers

SOURCE: My 2002 chevy blazer has a hesitation when

TPS may have a bad spot in it

Posted on Oct 04, 2009

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SOURCE: 2002 chevy van 2500 when i turn key to start van


Posted on May 05, 2010

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Fuel pump?

I as well have a 2002 chev blazer 4x4 4.3L, and though I have not exerrienced your paticular problem, I have experienced Service Engine Light on, and generaly I have found it is one of your sensors.
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Chevy blazer wont start 2002

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