random misfire

Asked by Feb 12, 2016 at 03:13 AM about the 2000 Chevrolet S-10 2 Dr LS Xtreme Standard Cab SB

Question type: Maintenance & Repair

I have a 2000 s10 4.3 that has a bad
miss and i changed the plugs and
distributor and distributor cap and
rotary button and it syill is missing
so i ran a diagnostic test and it said
random misfire so what does
ranfom misfire mean

4 Answers

I had the same problem with 99 Crown Vic did u put the orginals plugs in or after market. I would check those plugs Pepboys sells the orginals that Chev put in when making the car.

18,830

Did you also replace the spark plug wires ?

71,415

P0300 CHEVROLET - Cylinder Misfire Detected Random Cylinders....> Possible causes...> - Faulty spark plug (s) - Faulty ignition coil (s) - Clogged or faulty fuel injector (s) - Intake air leak - Fuel injectors harness is open or shorted - Fuel Injectors circuit poor electrical connection - Ignition coils harness is open or shorted - Ignition coils circuit poor electrical connection - Insufficient cylinders compression - Incorrect fuel pressure The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem,....> There is a factory service bulletin for the following Chevrolet models:> 2000 Chevrolet S-10 2000-2008 Chevrolet Camaro 2000-2008 Chevrolet Lumina 2000-2008 Chevrolet Cavalier 2000-2003 Chevrolet Impala 2000-2003 Chevrolet Malibu 2000-2003 Chevrolet Monte Carlo 2000-2003 Chevrolet Silverado 2000-2003 Chevrolet Suburban 2000-2003 Chevrolet Tahoe 2000-2003 Chevrolet Venture 2001-2008 Chevrolet Express 2002-2008 Chevrolet Astro 2000-2003 Chevrolet Avalanche 2000-2003 Chevrolet Trailblazer 2003-2008 Chevrolet Blazer 2003-2008 Chevrolet S-10 2003-2008 Chevrolet Trailblazer EXT 2000-2008 Chevrolet Factory Service Bulletin OBDII Code P0300

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30

Random misfire means there a random cylinders misfiring

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