Just bought a 98 s-10. check engine light was on. code po300 Changed ignition componets, still had po300 changed injectors, and now still have code po300 & now it backfires from exhaust and missfires

Asked by Feb 08, 2017 at 10:13 PM about the Chevrolet S-10

Question type: Maintenance & Repair

1 Answer

88,895

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......Check this video out.....https://youtu.be/QdWd68bVm30

1 people found this helpful.

Your Answer:

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,960
  • #2
    tennisshoes
    Reputation
    1,220
  • #3
    Trebor66
    Reputation
    1,170
View All

Related Models For Sale

Used Chevrolet Colorado
8 Great Deals out of 2,110 listings starting at $3,995
Used Ford Ranger
12 Great Deals out of 329 listings starting at $2,995
Used Chevrolet Silverado 1500
101 Great Deals out of 10,292 listings starting at $5,500
Used Toyota Tacoma
20 Great Deals out of 1,774 listings starting at $4,688
Used GMC Sonoma
7 listings starting at $4,450
Used Ford F-150
118 Great Deals out of 11,434 listings starting at $2,700
Used Nissan Frontier
16 Great Deals out of 498 listings starting at $3,488
Used Dodge Dakota
4 Great Deals out of 147 listings starting at $3,500
Used Chevrolet Blazer
23 listings
Used GMC Sierra 1500
67 Great Deals out of 10,290 listings starting at $1,999
Used GMC Canyon
18 Great Deals out of 2,146 listings starting at $2,995
Used Dodge Ram 1500
20 Great Deals out of 539 listings starting at $4,999
Used Chevrolet Camaro
13 Great Deals out of 978 listings starting at $10,500
Used Ford Mustang
47 Great Deals out of 1,397 listings starting at $2,900

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.