» » »

Oldsmobile Q&A

Ask Your Question

1999 Oldsmobile Alero Question: cylinder #3 misfire

 

Question

Visitor, 2.4L 4 Cylinder, Opa Locka, FL, February 25, 2010, 12:21

My check engine light comes on and the engine begins misfiring. Scan shows #3 misfire change spark plugs still has misfire any tips ?

2 Answers
Flag This
  • Medium-star Best Answer
    Bret Bodas from RepairPal Test Shop, February 25, 2010, 13:33
     Master

    Here is a ton of useful info about misfiring #3 cylinder (P0303 Code) http://repairpal.com/OBD-II-Code-P0303

    Flag This
  • Reply

    Visitor, June 25, 2010, 15:57

    Excellent, thanks.

    Reply
    Flag This
  • Answer #2

    Visitor, August 23, 2010, 15:14

    i have a 2000 alero with a 3.4 engine i had the same problem.
    i changed my coil pack leading to cyl. 3 problem solved

    Flag This
  • Reply

    pacALERO, April 04, 2014, 21:37
     Rookie

    did replacing the coil pack fix the problem

    Reply
    Flag This