SPONSORED LINKS

1999 Buick Regal Engine miss

Tiny
DEENIE
  • MEMBER
  • 1999 BUICK REGAL
1999 Buick Regal 6 cyl Automatic 90000 miles

Severe engine miss at times may run 20 min fine then miss when either idling or driving. May completely die. Will start right back up without difficulty. Have changed plugs, wires, fuel filter, fuel pump and one coil pack that was alittle corroded on q prong. Ign module plate read out ok. Any suggestions.
SPONSORED LINKS
Thursday, May 6th, 2010 AT 12:06 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:

1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, May 6th, 2010 AT 12:31 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