[hawk24]

My '99 Safari, for the last week or so will not start in the mornings and even longer into the day if it's rainy. I have had it on a scope and all systems, fuel pressure, and spark checked out ok. There was however signs of moisture under the distributor cap. I had new cap, rotor, cables and plugs installed but the problem occurred again last morning after a hot day cool night. Once the sun comes out I have no problems starting up.

 

[johnny-77]

If you distibuter has the screens in the bottom clean them out let me know if it helps.
ps just rememberd had a truck do the same the coil had a hair line crack in it that cause it to short on damp days.

 

[rayjay]

loads of damp! somethings earthing out here matetry the coil as johnny said,and get loads of wd40 or whatever its called over there and spray all the contacts and leads etc. :layrubber: