My 1990 F150 5.0 4x4 (110K Miles) has this annoying habit of losing all spark and either not starting or stalling in traffic. I pulled the coil wire from the dist and I get no spark. Where do I begin to diagnose this problem?? Are there any common items for this generation of F150 to start with? I don't know if its linked or not, but sometimes I get a really low/rough idle. I am thinking that the no spark syndrome and the intermittent poor idle are related.
Any ideas?
TIA