P0300 on Chevrolet vehicles Misfire detected, but not isolated to one cylinder

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Owners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.

Bulletins and campaigns Chevrolet filed with NHTSA whose summary names P0300. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• PIP5511A Service bulletin
  2018-01-23 · Engine And Engine Cooling — Cooling System
• This Preliminary information communicates the potential for a flashing MIL and DTC p0300 to occur in areas of high amounts of rain fall or humidity. This is due to the moisture that can accumulate in the charge air cooler from the rapid cooling of the internal air and be ingested into the engine.
• PIP5511 Service bulletin
  2017-08-04 · Engine
• This Preliminary information communicates the potential for a flashing MIL and DTC p0300 to occur in areas of high amounts of rain fall or humidity. This is due to the moisture that can accumulate in the charge air cooler from the rapid cooling of the internal air and be ingested into the engine.
• PIP5628 Service bulletin
  2019-02-18 · Engine And Engine Cooling
• This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
• 18NA020 Service bulletin
  2019-02-19 · Engine And Engine Cooling
• This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with DTC P0300 and/or P0299/P2227.
• PIE0505 Service bulletin
  2019-02-08 · Equipment — Other — Owners/Service/Other Manual
• This engineering informational bulletin is requesting information from the field to determine a root cause for a condition of Engine Running Rough and/or Check EngineLight Illuminated, DTCs P0300, P0301, P0302, P0303, P0304 Set.
• 18NA020 Service bulletin
  2019-03-19 · Engine And Engine Cooling
• This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with DTC P0300 and/or P0299/P2227.
• PIP5752F Service bulletin
  2020-10-28 · Engine And Engine Cooling
• This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and  engine noise with possible of DTC P0300 P0106 P0506,  Possible valve spring concern
• PIP5752G Service bulletin
  2020-11-20 · Equipment
• This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and  engine noise with possible of DTC P0300 P0106 P0506,  Possible valve spring concern
• PIP5801 Service bulletin
  2021-04-08 · Back Over Prevention
• This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and engine noise with possible of DTC P0300 P0106 P0506,P3189, P318A, P318B, P318C, P318D, P318E, P318F, P3190 Possible broken valve spring.
• PIP5498E Service bulletin
  2017-12-11 · Engine And Engine Cooling
• This Preliminary information communicates A vehicle may have a concern of DTCP050D setting along with a P0300 after a cold start up. White smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. Cause Coolant getting into the cylinders, and provides direction for the repair.
• PIP5553 Service bulletin
  2018-02-02 · Electrical System — Starter Assembly
• This Preliminary information communicatesThe vehicle may have an ses lamp with any of the following DTC P06DA, P06DB, P06DC, P06B6, P06B7, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Possible crank no start or a stall. possible wiring jumper harness chaffed at the bolt at the X154 connector on lower left side of the frount cover.
• 18NA115 Service bulletin
  2018-04-13 · Engine And Engine Cooling
• This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.

A stored code names the test that failed, never the part that caused it. The record above is what Chevrolet and its owners have filed about it; the code’s page across every make has the whole file.