Won't start

[Elemental]

There is a updated PROM to adress hard start uner 20 degrees F.

[sven]

Wait a minute....Updated Proms? Elemental? Hi Chris!

[Elemental]

Shhhhhhhhhhh, I'm on the down low.

[stevo-II]

Somebody probably already mentioned this, but check your rotor, I had a cheapo rotor on my truck when I bought it, apparently the PO installed it right before I got it, within about 1000 miles, it shorted out and I would get piss poor idling/missing in the morning, smoothing out some when warmed up - eventually it started getting worse and worse. I would check the spark at the plug and it seemed fine, until I realized how much better it could be later.

To test, pull the rotor off the distributor, get a short 3/8 socket extention, stand the extension on end on a fender or something grounded, set the rotor down on top of it - take the coil HV lead and hold it over the top of the metal strip on the rotor, have somebody crank the engine - if the spark jumps to/through the rotor - its bad. Oh, I guess you better hold the lead with something insulated...lol. The cheap rotors have square ends on the brass strip - genuines have rounded corners. I guess you could do this with the rotor in place, but you have to get the cap out of the way so things don't collide. Be careful pulling the rotor, if it doesn't come off easy, DONT force it or you will break something - your better off splitting it with a chisel and hammer and just replacing it.

Steve