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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  • 17 Answers

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

  • 124 Answers

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

davesmith_37
  • 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

  • 14036 Answers

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

SOUND LIKE ELECTRICAL PROBLEM IN THE STARTER CIRCUIT.CHECK WIRING TO STARTER AND CHECK STARTER SOLENOID.

Posted on May 05, 2010

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1 Answer

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Check spark plugs, leads, distributor cap & rotor arm, fuel pump, fuel filter, coil pack(s), relays, replace any items that are suspect IE Fuel filter which has probably not been changed since new even though they should be changed on all vehicles every 18 months, all of this can be done at home & will save you a lot of bucks in mechanic/garage fees,

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1999 chevy blazer not starting


Check the plug wire from the ignition coil to the distributor cap.
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1 Answer

Fuel pump?


Scott,
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.
You could have a bad sensor causing your rev problem. What I do is determine if the vehicle still runs as if the service engine light has not come on.
If it runs the same, in my experience it is not as crucial as if you have a performance issue, as you do with reving. If I was you I would try to get to your mech ASAP.
I am not aa mech but, I know our chev blazer very well, and how it should perform.
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Dec 16, 2011 | 2002 Chevrolet Blazer

1 Answer

1996 chevy blazer will turn over but not fire. I have changed cap rotar plugs wires and fuel filter.what next


u need to ck for spark & fuel,,pull off one plug wire & put a spark plug in it,,lay the plug on the exhaust manifold so u can see the spark plug electrodes,,have someone turn over the motor look for a spark,,,or buy a spark tester,,,

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1 Answer

My 2002 chevy blazer turns over but wont start I've changed the fuel filter so far but would like to find some answers before spending hundreds of dollarswithout knowing if I'm going in the right direction


Check for spark on any cylinder, by pulling the plug wire and installing a clean, spare plug in the wire--lay the plug body on the engine metal. Have someone turn the starter while watching the plug. Regular blue sparks show the ignition is ok along with the crankshaft and camshaft position sensors. If no sparks, suspect either of the position sensors. At this point, rent a scanner, read any code(s), and pursue to repair(s). If you have fuel problems, that should show on the scan. Swapping parts is not a realistic way to troubleshoot problems.

Oct 28, 2009 | 2002 Chevrolet Blazer

2 Answers

2002 chevy blazer won't start


There is a module in the ignition cap that is known to go bad. If it is this part, your truck will almost turn over, but not quite. I would check there first. Once you get it out, one of you local parts stores can test it.

Sep 14, 2009 | 2002 Chevrolet Blazer

2 Answers

Chevy blazer wont start 2002


if it turns over there are a cocuple of things to check. crankshaft sensor and the coil pack maybe the computer.id start with the crankshaft sensor

Jun 29, 2008 | 2002 Chevrolet Blazer

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