bad in the rain  by dragon5126 - 8/7/12 2:33 PM  In Reply to: 98
Jeep Cherokee stalling problem by silverjeep  have you replaced
the coil, ignition wires, plugs cap and rotor with PREMIUM
parts. and the plugs shoud be old fashioned standard plugs. The
4.0 is sensitive to massive changes. go bone stock on the
ignition components for a default setup. Then after all is done
you can replace the coil and plugs, avoid platinum. as the
electrodes are too small. multi electrode plugs are fine as are
higher energy coils. but not until all bugs are worked out. and
your cap rotor and cables need to be absolutely the best you can
afford, but this goes for every vehicle, as it ensures the
maximum amount of energy from the coil making it to the plugs,
and remember metal plug wires are for racing not street driving