Results 1 to 3 of 3

Thread: Misfire! WHat could cause this?

  1. #1
    Join Date
    May 2018
    Western Ky

    Misfire! WHat could cause this?

    I have a 2003 S-10 with a 4.3L EFI engine with a 5 speed, 189,000 miles on it. This morning on the way to work my check engine light started flashing and the engine started running rough. Checked the code and had a P0300 Misfire. The distributor is new (2 months old), nothing can be seen on the cap, inside or outside, as to a crack or other damage. Plug wires and plugs are new as of this afternoon. Still get a misfire and a code of P0300. Plugs showed nothing out of ordinary for a plug with 60,000 plus miles on them. Any ideas anyone?


  2. # ADS
    Circuit advertisement
    Join Date
    Advertising world

  3. #2

  4. #3
    When in doubt change coil and coil wire I know you said you had new plug wires but I've had more problems out of coil wires then any thing on theses motors

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts