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1996 Chevrolet K1500 P0305 Misfire at 65-75 MPH - Low-Cost Diagnosis Tips

Model: 1996 Chevrolet K1500 Fault Code: P0305 Posted: 2014-06-01 20:35

My 1996 Chevrolet K1500 is showing a P0305 diagnostic code. When driving between 65 and 75 mph, the truck exhibits a noticeable misfire. I've already checked the spark plug wire and confirmed it's in good condition. What are some affordable troubleshooting steps I can take before investing more money? I'm deeply invested in this vehicle and want to fix it without overspending.

Related fault codes
P0305
Comments (2)
Anonymous 2014-06-02 08:37

How exactly did you test the spark plug wire? Using an ohmmeter? A misfire on cylinder #5 can often be traced to a simple issue. Check the appearance of the #5 spark plug—wet, dry, black, or gray? Is it actually firing? These checks are quick, easy, and inexpensive—perfect for a first-step diagnosis.

Anonymous 2014-07-25 21:00

I'm not sure what '1351' refers to—is that a typo or another code? Could you clarify if this relates to the P0305 issue or is a separate problem?