99 Chevy lumina wont run right?

  • Thread starter Thread starter Gerald F
  • Start date Start date
G

Gerald F

Guest
i changed the head gaskets the heads were not warped so put it back together now when i try to start it, it will rough idle and die the plenium smells rich like its flooding and it acts like it needs timed but i don't see how that would be because i did'nt mess with the timing at all, however if it is a timing issue how do you time a computer controlled timing system
NOTE: i did have to cut the catalytic converter in half to get the rear heads off because the bolts were seized on it would that effect it
thanks for the help
 
you may have an exhaust leak causing a false O2 sensor reading check for codes for a better clue

also make sure all vacuum lines are hooked up correctly and that there is no vacuum leak anywhere else as this will cause a rich fuel mixture

to check for a vacuum leak spray around engine with a water bottle filled with soapy water if you hear the engine stumble or stall this is a vacuum leak
 
Back
Top