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

90,625

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 out of 1 people think this is helpful.
65,155

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 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,110
#2 Rowefast
Rowefast
Reputation 1,790
#3 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,610
View All

Related Models For Sale

Used GMC Sierra 1500
830 Great Deals out of 66,315 listings starting at $1,995
Used Ford F-150
2,237 Great Deals out of 209,413 listings starting at $1,499
Used Dodge Ram 1500
428 Great Deals out of 11,319 listings starting at $1,000
Used Chevrolet Silverado 2500HD
316 Great Deals out of 26,880 listings starting at $1,250
Used Toyota Tundra
476 Great Deals out of 33,278 listings starting at $3,305
Used Toyota Tacoma
484 Great Deals out of 39,049 listings starting at $2,900
Used Chevrolet Tahoe
557 Great Deals out of 27,464 listings starting at $999
Used Chevrolet Camaro
150 Great Deals out of 32,901 listings starting at $1,995
Used Ford F-250 Super Duty
354 Great Deals out of 47,663 listings starting at $1,795
Used Chevrolet Silverado 2500
8 Great Deals out of 289 listings starting at $3,000
Used Ford Mustang
372 Great Deals out of 46,984 listings starting at $1,500
Used Chevrolet Silverado 1500HD
13 Great Deals out of 269 listings starting at $3,950

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
49 Great Deals out of 113,740 listings starting at $20,499
2016 Chevrolet Silverado 1500 For Sale
137 Great Deals out of 6,081 listings starting at $18,190
2015 Chevrolet Silverado 1500 For Sale
172 Great Deals out of 7,316 listings starting at $15,888
2014 Chevrolet Silverado 1500 For Sale
285 Great Deals out of 10,389 listings starting at $9,988
2013 Chevrolet Silverado 1500 For Sale
166 Great Deals out of 5,143 listings starting at $6,900