1999 Oldsmobile Alero missfire on #1 cly

Tiny
DARRELL EBLING
  • MEMBER
  • 1999 OLDSMOBILE ALERO
Engine Performance problem
1999 Oldsmobile Alero 4 cyl Front Wheel Drive Automatic

have missfire on #1 cly
Wednesday, November 4th, 2009 AT 3:13 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check no. 1 sparkplug, compression and injector

Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, November 4th, 2009 AT 5:49 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE

Sponsored links