1999 sonoma 4.3 l timing marks

1999 GMC SONOMA
Avatar
ROBTKRUEGER
  • MEMBER
  • 1 POST
Changed the intake manifold gasket due to water leaks, removed distribitor and put back in same position? now it cranks , but makes muffled poping sounds out of muffler. Re-checked timing to the first cyl. and re-positioned d-rotor , but still not firing-up as before. 2 marks on front crank, which one is for tdc on #1 cyl??
Jun 10, 2007 at 3:03 PM
Advertisement
Avatar
KIN CHAN
  • MEMBER
  • 453 POSTS
gotta find ur top dead center and restab ur distributor again....rest of the info is on this site...after installation u must use a scanner and do the relearn and realign it no more than 1 deg as the computer see it which will show on a scanner under bidirectional function
good luck man
Jun 10, 2007 at 5:06 PM