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2002 chevy blazer misfires - 2002 Chevrolet Blazer

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Change the spark plugs

Posted on Oct 03, 2009

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Posted on Jan 02, 2017

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Gm code po300


This is a misfire code. Start with the basics, fuel filter, spark plugs, vacuum leaks, wires etc. If after checking/changing necessary parts, if problem persists you will need to go deeper as in coils and computer controlled parts such as map sensor, maf sensor

Sep 10, 2014 | 2002 Chevrolet Blazer

1 Answer

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


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.

Jan 21, 2013 | 2002 Chevrolet Blazer

1 Answer

Are the rear brakes rotors or drums on a 2002 chevy blazer?


Rotors after 1996 for the Chevy Blazers.
Let me know if you need anything else.
Benjamin

Nov 04, 2010 | 2002 Chevrolet Blazer

1 Answer

How to remove rear door panel on 2002 chevy blazer


usually two screws one at the armrest and one under the power window console , this console usually pops out to let you at the screw.

Oct 27, 2009 | 2002 Chevrolet Blazer

1 Answer

I have a 2000 chevy blazer 4.3l engine\is backfiring


Start by checking each cylinder for spark with a good spark tester. A misifre is either spark or fuel, so you can cut the problem in half. The engine light is probably on due to the misfire.

Sep 20, 2009 | 2000 Chevrolet Blazer

1 Answer

Po128,po155,po171,po300 These are the things that faile on my 2002 chevy blazer when I took it to the Maryland state emmissions test. Do you know what they are?


P0128 (Coolant thermostat-coolant temp below thermostat regulating temperature) Possible cause-Mechanical fault

P0155 (Heated oxygen sensor (H)2S)1, bank 2,-circuit malfunction) Possible cause Wiring, H02S, ECM

P0171 (System to lean, ban 1) possible cause intake blocked, EVAP canister purge valve, fuel pressure, EGR system, injector(s), H02S

P0300 (Random/multiple cylinder(s)-misfire detected) Possible causes Spark plug(s), HT lead(s), injector(s), ignition coil(s), low compression, or wiring.

Sep 05, 2009 | 2002 Chevrolet Blazer

1 Answer

Cylinder 2 misfire on a 1998 chevy blazer


check your plug wires for tears and dont overlap them

Feb 23, 2009 | 1998 Chevrolet S-10 Pickup

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