DIKASUN
NAXJA Forum User
- Location
- Murfreesboro, TN
my 92 cherokee with a 4.0 has about 195,000 miles on it. i noticed about 6 months ago that my engine was kind of sputtering at certain speeds and i was getting terrible gas milage. so, the first thing i did was change the spark plugs. they were caked with white ashy chalky looking stuff. after i replaced them it runs fine for about a month, then i have to replace them again. is this a common thing or does anyone know what it could be?