2001 Buick LeSabre Q&A
2001 Buick LeSabre Question: misfire
Yes, this is likely the cause of a cylinder misfire. You will need to replace the wires, the coil if it is damaged and you might as well change the spark plugs too. - Bret Bodas
I PULLED A CODE OF THE COMPUTER PO300 RANDOM/MULTIPLE CYL MISFIRE DETECTED. CAR HAS 120K. SERVICE ENGINE LIGHT ON.
I've replaced spark plug, plug wire & coil pack but light won't go off & still reads misfire in cylinder 3. i also have been getting poor gas mileage & my muffler is getting louder
When going up a hill, car seems to misfire. When transmission changes to OD, it seems to have a hesitation.
I had driven my car about 20+ miles and was a half block from home when it suddenly misfired and at the same time the check engine light came on. I drove it home and have not driven it...
My buick is having a misfire problem in cylender 4. I have changed the spark plugs and wires twice but the codes P0304, P03...