Sorry for the delay. I found my favorite source on eBay, "lorieandeff" and one other person with lots of books. Would you believe I couldn't find a single book for a 1988 Ranger? Found 'em for a Taurus and an Aerostar. I'll keep hunting.
People are leaving eBay in droves because it is becoming very unfriendly for the little guys. Sellers are no longer allowed to accept checks and money orders. Payment must be made through their system which costs more fees. It is getting very expensive to sell through them.
I don't have an answer on why it has spark sometimes unless there's a burned contact on the ignition switch. What you might try is to turn the ignition switch to "run", then back-probe each wire in the TFI module connector and measure and record the voltages. At that point try to start it without turning the ignition switch off first. If it starts, mark those voltages as "normal". When it doesn't start, leave the ignition switch on and remeasure the voltages again. If you find one wire that's different, that will give us something to pursue.
Saturday, March 20th, 2010 AT 1:37 AM