1999 Buick Regal "misfire" Questions

p0300 code misfire p0303 just code 0303 only change spark on front getting ready change went away month a half show again today same code as before # 3 cylinder misfire (PO303) if code is actually ...

...same.. They are most certainly NOT! The first thing to have done is to verify that the engine has a misfire or not. Then if the misfire is present, determine what is the cause of the misfire. A ...

...has started misfiring. I got new plugs and wires and its still doing the same thing. Its starts to misfire and lose pressure then it dies out. I have a 3800 series 2 motor does anyone have any ...

1999 buick regal codep0305 1999 buick regal 3800 random misfire code po305 Cylinder number 5 is misfiring. Check spark plug, spark plug wire and ignition coil for the number 5 cylinder. The number 5 ...

i have a 2000 buick regal ls 3.8l, v6. when i drive the car pulls back and forth when i go up a hill it doesnt go fast it pulls back. i have my foot on the pedal going 65 mph and the car will slow ...

...order is right.the last thing would be to swap that injector with another cylinder and see if the misfire moves.good

...have fuel pressure tested. Not uncommon for low fuel pressure to starve a cylinder or 2 and have a misfire code come up. Should only take mechanic about 5-10 minutes to verify low or o.k. , then you ...

on my 2004 buick regal my number 6 cylinder mis fires i have replaced sparkpluge and wire sill misfire y is his Spark Plugs should be replaced every 3 years, in my world Wires are only replaced after ...

...Regal GS. The check engine light flashes above 70 MPH. I got the code scanned and it first said misfire on cylinder 1. then now it says misfire on multiple or random cylinders. i have changed ...

im recieving a readout stating that #4 plug is misfiring my car has been sputtering for a 2 days and i took it to be checked out on a computer. they told me that it may be gunk in the #4 valve because