Thought would pass this on.. Our 2000 Focus with 75,000 miles on the clock has been down on power and would misfire and hesitate going up hills...plus it ran a little rough. Recently I pulled off the spark plug cables and measured them with a volt-ohm meter. All of the cables except the last one I checked read about
1.4-1.7 kohms resistance...but the last one read about 20 kohms resistance. Further exhamination of the cable indicated corrosion on the cap that connects to the ignition module. Replacement of all the cables..with good ones..restored engine performace back to snuff.- posted
18 years ago