PO300

Asked by Johnnysstumped Jun 13, 2019 at 07:04 PM about the 2003 Chevrolet S-10 LS Xtreme Extended Cab RWD

Question type: Maintenance & Repair

I've replaced the distributor
cap rotor pick up coil plugs
wires ignition coil control
module and still having the
same problem none of that
fixed it

3 Answers

I have a 99 yukon with a po300 code . new cap, new rotor, new plugs. still miss-fire, when I took the old plugs out i noticed all the plugs on the even side 2-8 were really wet. and the other side was normal. what in the heck does this mean? i can smell the fuel that's not being burned come out the exhaust.

Your Answer:

S-10

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