My 1991 Holden Commodore vn V6 is playing up

Tiny
P MCKENZIE
  • MEMBER
  • 1991 HOLDEN COMMODORE
  • 200,000 MILES
My 1991 Holden Commodore vn v6 is playing up. Engine erratically breaking down/running rough/ clouds of unburnt black exhaust when it does. Not all the time. Suspect ignition problem. Coil bank. Sensor. Wiring. Has had new computer a few yrs ago.
Tuesday, April 10th, 2012 AT 10:30 AM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Running too rich, check. Vacuum line at feul pressure regulator if any gas is present, replace it, also O 2 sensors are beyond replacement age!
Was this
answer
helpful?
Yes
No
Tuesday, April 10th, 2012 AT 3:49 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Often faulty coil packs and leads on these will cause this, but also check what merlin has suggested as well.
Was this
answer
helpful?
Yes
No
Tuesday, April 17th, 2012 AT 10:37 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Thanks Mark.
Was this
answer
helpful?
Yes
No
Wednesday, April 18th, 2012 AT 12:20 AM

Please login or register to post a reply.

Sponsored links