1968 Mustang with a 2bb 289. Had an ignition problem and ended up sitting for a year thanks to time and money issues. It ran perfectly, just wouldn't start at the ignition switch. Once the time and money issues were resolved, I got under the dash and replaced the switch. Problem is, now she won't start at all! The engine turns over fine and she tries to start, she just can't keep going and is backfiring through the carb.
Corrective things done so far:
1. Rebuilt carburetor due to minor fuel leak
2. Replaced coil, battery, and ignition switch.
3. Traced/repaired all ignition wiring
4. Verified correct circuit pathways via Chiltons manual
5. Replaced fuel filter, drained old fuel and replaced with fresh fuel
6. Verified correct firing sequence, replaced plugs, wires, rotor and distributor cap.
7. Checked all vacuum hoses
According to Chiltons, the issue is ignition timing, a bad EGR component, or a defective TAC vacuum motor or valve.
The car is a 68 and doesn't have an EGR, or a TAC vacuum motor. The thing I can't figure out is how ( if at all ) the timing got out of whack since nothing has been done to change the timing, So, I'm at a complete loss as to what is wrong.
have the same problem?
Saturday, August 20th, 2011 AT 1:43 PM