I have replaced all of it--pick up coil, rotor, cap, wires, coil, ign. mod., and crank sensor. Went so far as to replace oil sending unit and still no spark. Timing is right on, checked it several times. I don't know where else to look,
2006-08-02 00:28:52 · 4 answers · asked by Skip 1 in Cars & Transportation ➔ Maintenance & Repairs
On a 99 vortec I would start looking at the computer. It has an ignition chip that has a tendency to go out or try the starter,battery or the ignition cylinder its self.
2006-08-02 00:34:45 · answer #1 · answered by ejholle1 3 · 0⤊ 0⤋
Instead of just tossing parts at it, verify B+ to the ignition coil. IIRC, it's terminal C at the ignition coil connector. It's possible the VCM (computer) is bad, but only a slim chance. Best to get a manual and use the diagnostic charts.
>>>and don't overlook the basics. Does the distributor turn when cranking? Is Cranking speed sufficient? Aftermarket theft system? Most theft systems disable fuel, but there are some that disable both fuel and spark.
2006-08-02 00:50:15 · answer #2 · answered by Imerc 3 · 0⤊ 0⤋
To check the timing dont you need to be getting a spark on the number 1 cylinder? Might check into the ECM, if you have changed the ign system that should be fine. Recheck all connections and have autozone test the ign module for free. Does the ignition module have power to it? Good luck
2006-08-02 00:46:15 · answer #3 · answered by james_e_purdy 2 · 0⤊ 0⤋
Another thing to check is for spark AFTER letting go of the the key?
2006-08-02 01:19:01 · answer #4 · answered by Mr. KnowItAll 7 · 0⤊ 0⤋