Hi, I have a 96 sonoma 4.3l with csfi. It cranks but won't start. I've checked fuel pressure 60lbs, timing tdc and rotor button are lined up on number 1, has spark on several cycinders, and checked a few sensors for 5 volts. Even tried to get it to run by spraying starting fluid at the air intake while cranking it. Could the csfi system poppet valves need replaced. Anyone had this problem? Thanks Rick
- posted
19 years ago