2002 silverado code p0300

Asked by Mar 26, 2016 at 09:34 PM about the 2002 Chevrolet Silverado 1500 LT Ext Cab Short Bed 2WD

Question type: Maintenance & Repair

Truck doesnt want to idle or run right.  only
able to go 25-30 mph. Was able to get to auto
zone and had obd tested. Code p0300 popped
up and the sel light is flashing. I replaced the
fuel injector pressure regulator per auto zone
recommendation. Still popped same code???
Any suggestions

2 Answers

98,565

the infamous random multiple misfire code, replace the fuel filter then start checking and replacing the spark plugs, and if you do replace use good ones like ACs, then have the injectors cleaned and dump in a bottle of Techron in the fuel tank, as those are the most common problems. Clear the code and drive it as you normally would, hopefully that will get it, if not then you will have to go in for a live data scan to find out what is causing it.

1 of 1 people found this helpful.
73,175

Like tennisshoes says...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

2 of 2 people found this helpful.

Your Answer

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,460
  • #2
    Rowefast
    Reputation
    1,960
  • #3
    Andrew Olsen
    Reputation
    1,670
View All

Related Models For Sale

Used GMC Sierra 1500
801 Great Deals out of 67,481 listings starting at $1,350
Used Ford F-150
2,175 Great Deals out of 181,307 listings starting at $1,000
Used Dodge Ram 1500
401 Great Deals out of 10,732 listings starting at $1,500
Used Chevrolet Silverado 2500HD
315 Great Deals out of 29,278 listings starting at $2,650
Used Toyota Tundra
447 Great Deals out of 33,538 listings starting at $1,999
Used Toyota Tacoma
581 Great Deals out of 41,972 listings starting at $2,995
Used Chevrolet Tahoe
641 Great Deals out of 37,383 listings starting at $1,800
Used Chevrolet Camaro
436 Great Deals out of 31,751 listings starting at $2,395
Used Ford F-250 Super Duty
353 Great Deals out of 43,440 listings starting at $975
Used Chevrolet Silverado 2500
8 Great Deals out of 239 listings starting at $3,995
Used Chevrolet Silverado 1500HD
4 Great Deals out of 276 listings starting at $4,500
Used Ford Mustang
760 Great Deals out of 41,955 listings starting at $1,300

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
289 Great Deals out of 105,346 listings starting at $20,863
2016 Chevrolet Silverado 1500 For Sale
179 Great Deals out of 6,098 listings starting at $17,995
2015 Chevrolet Silverado 1500 For Sale
275 Great Deals out of 9,298 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
348 Great Deals out of 12,039 listings starting at $9,999
2013 Chevrolet Silverado 1500 For Sale
186 Great Deals out of 5,034 listings starting at $7,984

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.