1999 Other Rover Models bad miss fire

Tiny
PAULS123
  • MEMBER
  • 1999 ROVER
  • 4 CYL
  • 2WD
  • MANUAL
  • 62,000 MILES
I just had my cylinder head gasket and timing belt replaced and all was ok with my car for about 3 weeks. Now the car consistantly misfires, crawls up hills and wont go over 20 mph without a struggle. I had the cylinder head compression tested and they told me that was fine, they then tell me its the DIZZY? Or the CAT thats gone, I cant really see the cat causing this kind of misfire. Please help
Friday, December 25th, 2009 AT 6:04 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do an exhaust backpressure test to rule the catalytic converter if okay could be one of the following

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.
Was this
answer
helpful?
Yes
No
Friday, December 25th, 2009 AT 7:43 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...